import { check, integer, pgTable, varchar, uuid, timestamp, pgEnum, boolean, text, date, decimal, uniqueIndex, index, jsonb } from "drizzle-orm/pg-core";
import { relations, sql } from "drizzle-orm";

export const users = pgTable("users", {
  id: uuid("id").primaryKey().defaultRandom(),
  clerkId: varchar("clerk_id", { length: 255 }).unique(), // legacy: only populated for users migrated from Clerk; new users are null
  email: varchar("email", { length: 255 }).notNull(),
  emailVerified: boolean("email_verified").notNull().default(false),
  username: varchar("username", { length: 255 }),
  displayName: varchar("display_name", { length: 255 }), // mapped as BetterAuth's "name" field
  firstName: varchar("first_name", { length: 255 }),
  lastName: varchar("last_name", { length: 255 }),
  imageUrl: varchar("image_url", { length: 512 }), // mapped as BetterAuth's "image" field
  isAdmin: boolean("is_admin").notNull().default(false),
  timezone: varchar("timezone", { length: 50 }), // IANA timezone string, e.g. "America/Chicago"
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

// BetterAuth session/account/verification tables
export const sessions = pgTable("sessions", {
  id: text("id").primaryKey().$defaultFn(() => crypto.randomUUID()),
  expiresAt: timestamp("expires_at").notNull(),
  token: text("token").notNull().unique(),
  userId: uuid("user_id").notNull().references(() => users.id, { onDelete: "cascade" }),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
  ipAddress: text("ip_address"),
  userAgent: text("user_agent"),
});

export const accounts = pgTable("accounts", {
  id: text("id").primaryKey().$defaultFn(() => crypto.randomUUID()),
  accountId: text("account_id").notNull(),
  providerId: text("provider_id").notNull(),
  userId: uuid("user_id").notNull().references(() => users.id, { onDelete: "cascade" }),
  accessToken: text("access_token"),
  refreshToken: text("refresh_token"),
  idToken: text("id_token"),
  expiresAt: timestamp("expires_at"),
  accessTokenExpiresAt: timestamp("access_token_expires_at"),
  refreshTokenExpiresAt: timestamp("refresh_token_expires_at"),
  scope: text("scope"),
  password: text("password"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const verifications = pgTable("verifications", {
  id: text("id").primaryKey().$defaultFn(() => crypto.randomUUID()),
  identifier: text("identifier").notNull(),
  value: text("value").notNull(),
  expiresAt: timestamp("expires_at").notNull(),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

// Fantasy League Tables
export const seasonStatusEnum = pgEnum("season_status", [
  "pre_draft",
  "draft",
  "active",
  "completed",
]);

// Sports Tables - Enums
export const sportTypeEnum = pgEnum("sport_type", ["team", "individual"]);

export const sportsSeasonStatusEnum = pgEnum("sports_season_status", [
  "upcoming",
  "active",
  "completed",
]);

export const scoringTypeEnum = pgEnum("scoring_type", [
  "playoffs",
  "regular_season",
  "majors",
]);

export const scoringPatternEnum = pgEnum("scoring_pattern", [
  "playoff_bracket",
  "season_standings",
  "qualifying_points",
]);

export const eventTypeEnum = pgEnum("event_type", [
  "playoff_game",
  "major_tournament",
  "final_standings",
  "schedule_event",
]);

export const pickedByTypeEnum = pgEnum("picked_by_type", [
  "owner",
  "commissioner",
  "admin",
  "auto",
]);

export const autodraftModeEnum = pgEnum("autodraft_mode", [
  "next_pick",
  "while_on",
]);

export const draftTimerModeEnum = pgEnum("draft_timer_mode", [
  "chess_clock",
  "standard",
]);

export const overnightPauseModeEnum = pgEnum("overnight_pause_mode", [
  "none",
  "league",
  "per_user",
]);

export const probabilitySourceEnum = pgEnum("probability_source", [
  "manual",
  "futures_odds",
  "elo_simulation",
  "performance_model",
]);

export const simulationStatusEnum = pgEnum("simulation_status", [
  "idle",
  "running",
  "failed",
]);

export const simulatorTypeEnum = pgEnum("simulator_type", [
  "f1_standings",
  "indycar_standings",
  "golf_qualifying_points",
  "playoff_bracket",
  "ucl_bracket",
  "ncaam_bracket",
  "ncaaw_bracket",
  "nba_bracket",
  "nhl_bracket",
  "nfl_bracket",
  "afl_bracket",
  "snooker_bracket",
  "tennis_qualifying_points",
  "mlb_bracket",
  "wnba_bracket",
  "world_cup",
  "darts_bracket",
  "cs2_major_qualifying_points",
  "ncaa_football_bracket",
  "llws_bracket",
]);

export const tournamentStatusEnum = pgEnum("tournament_status", [
  "scheduled",
  "in_progress",
  "completed",
]);

export const playoffMatchGameStatusEnum = pgEnum("playoff_match_game_status", [
  "scheduled",
  "complete",
  "postponed",
]);

export const leagues = pgTable("leagues", {
  id: uuid("id").primaryKey().defaultRandom(),
  name: varchar("name", { length: 255 }).notNull(),
  createdBy: varchar("created_by", { length: 255 }).notNull(), // UUID → users.id
  currentSeasonId: uuid("current_season_id"), // References the active season
  isPublicDraftBoard: boolean("is_public_draft_board").notNull().default(false),
  discordWebhookUrl: text("discord_webhook_url"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const seasonTemplates = pgTable("season_templates", {
  id: uuid("id").primaryKey().defaultRandom(),
  name: varchar("name", { length: 255 }).notNull(),
  description: text("description"),
  year: integer("year").notNull(),
  isActive: boolean("is_active").notNull().default(true),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const seasons = pgTable("seasons", {
  id: uuid("id").primaryKey().defaultRandom(),
  leagueId: uuid("league_id")
    .notNull()
    .references(() => leagues.id, { onDelete: "cascade" }),
  year: integer("year").notNull(),
  status: seasonStatusEnum("status").notNull().default("pre_draft"),
  templateId: uuid("template_id")
    .references(() => seasonTemplates.id, { onDelete: "set null" }),
  draftRounds: integer("draft_rounds").notNull().default(20),
  flexSpots: integer("flex_spots").notNull().default(0),
  draftDateTime: timestamp("draft_date_time"),
  draftInitialTime: integer("draft_initial_time").notNull().default(120), // seconds
  draftIncrementTime: integer("draft_increment_time").notNull().default(30), // seconds
  draftTimerMode: draftTimerModeEnum("draft_timer_mode").notNull().default("chess_clock"),
  currentPickNumber: integer("current_pick_number").default(1),
  draftStartedAt: timestamp("draft_started_at"),
  draftCompletedAt: timestamp("draft_completed_at"),
  draftPaused: boolean("draft_paused").notNull().default(false),
  overnightPauseMode: overnightPauseModeEnum("overnight_pause_mode").notNull().default("none"),
  overnightPauseStart: varchar("overnight_pause_start", { length: 5 }), // "23:00"
  overnightPauseEnd: varchar("overnight_pause_end", { length: 5 }),     // "07:00"
  overnightPauseTimezone: varchar("overnight_pause_timezone", { length: 50 }), // IANA — league TZ (league mode) or per-user fallback
  inviteCode: varchar("invite_code", { length: 20 }).notNull().unique(),
  // Scoring configuration (8 values for 1st through 8th)
  pointsFor1st: integer("points_for_1st").notNull().default(100),
  pointsFor2nd: integer("points_for_2nd").notNull().default(70),
  pointsFor3rd: integer("points_for_3rd").notNull().default(50),
  pointsFor4th: integer("points_for_4th").notNull().default(40),
  pointsFor5th: integer("points_for_5th").notNull().default(25),
  pointsFor6th: integer("points_for_6th").notNull().default(25),
  pointsFor7th: integer("points_for_7th").notNull().default(15),
  pointsFor8th: integer("points_for_8th").notNull().default(15),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const teams = pgTable("teams", {
  id: uuid("id").primaryKey().defaultRandom(),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  name: varchar("name", { length: 255 }).notNull(),
  logoUrl: varchar("logo_url", { length: 512 }),
  ownerId: varchar("owner_id", { length: 255 }), // UUID → users.id, nullable
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const draftSlots = pgTable("draft_slots", {
  id: uuid("id").primaryKey().defaultRandom(),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  draftOrder: integer("draft_order").notNull(),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const draftPicks = pgTable("draft_picks", {
  id: uuid("id").primaryKey().defaultRandom(),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  pickNumber: integer("pick_number").notNull(),
  round: integer("round").notNull(),
  pickInRound: integer("pick_in_round").notNull(),
  pickedByUserId: varchar("picked_by_user_id", { length: 255 }).notNull(), // UUID → users.id
  pickedByType: pickedByTypeEnum("picked_by_type").notNull(),
  timeUsed: integer("time_used").notNull().default(0), // team's time bank (seconds) at the moment the pick was made
  createdAt: timestamp("created_at").defaultNow().notNull(),
}, (t) => ({
  // Prevents two concurrent picks from landing in the same slot
  uniquePickSlot: uniqueIndex("draft_picks_season_pick_unique").on(t.seasonId, t.pickNumber),
}));

export const draftQueue = pgTable("draft_queue", {
  id: uuid("id").primaryKey().defaultRandom(),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  queuePosition: integer("queue_position").notNull(),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const watchlist = pgTable("watchlist", {
  id: uuid("id").primaryKey().defaultRandom(),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  createdAt: timestamp("created_at").defaultNow().notNull(),
}, (t) => ({
  uniqueWatch: uniqueIndex("watchlist_season_team_participant_unique").on(t.seasonId, t.teamId, t.participantId),
}));

export const draftTimers = pgTable("draft_timers", {
  id: uuid("id").primaryKey().defaultRandom(),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  timeRemaining: integer("time_remaining").notNull(), // seconds
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const autodraftSettings = pgTable("autodraft_settings", {
  id: uuid("id").primaryKey().defaultRandom(),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  isEnabled: boolean("is_enabled").notNull().default(false),
  mode: autodraftModeEnum("mode").notNull().default("next_pick"),
  queueOnly: boolean("queue_only").notNull().default(false),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const commissioners = pgTable("commissioners", {
  id: uuid("id").primaryKey().defaultRandom(),
  leagueId: uuid("league_id")
    .notNull()
    .references(() => leagues.id, { onDelete: "cascade" }),
  userId: varchar("user_id", { length: 255 }).notNull(), // UUID → users.id
  createdAt: timestamp("created_at").defaultNow().notNull(),
});

// Sports Tables
export const sports = pgTable("sports", {
  id: uuid("id").primaryKey().defaultRandom(),
  name: varchar("name", { length: 255 }).notNull(),
  type: sportTypeEnum("type").notNull(),
  slug: varchar("slug", { length: 255 }).notNull().unique(),
  description: text("description"),
  iconUrl: varchar("icon_url", { length: 255 }), // Filename of icon in /public/sports-icons/
  simulatorType: simulatorTypeEnum("simulator_type"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const sportsSeasons = pgTable("sports_seasons", {
  id: uuid("id").primaryKey().defaultRandom(),
  sportId: uuid("sport_id")
    .notNull()
    .references(() => sports.id, { onDelete: "cascade" }),
  name: varchar("name", { length: 255 }).notNull(),
  year: integer("year").notNull(),
  startDate: date("start_date"),
  endDate: date("end_date"),
  status: sportsSeasonStatusEnum("status").notNull().default("upcoming"),
  scoringType: scoringTypeEnum("scoring_type").notNull(),
  // New scoring pattern field (replaces/augments scoringType)
  scoringPattern: scoringPatternEnum("scoring_pattern"),
  // For qualifying points sports
  totalMajors: integer("total_majors"),
  majorsCompleted: integer("majors_completed").notNull().default(0),
  qualifyingPointsFinalized: boolean("qualifying_points_finalized").notNull().default(false),
  // EV Calibration parameters (for Elo-based probability generation)
  eloCalibrationExponent: decimal("elo_calibration_exponent", { precision: 3, scale: 2 }), // e.g., 0.33
  eloMinRating: integer("elo_min_rating").default(1250),
  eloMaxRating: integer("elo_max_rating").default(1750),
  // Simulation status (prevents concurrent simulation runs)
  simulationStatus: simulationStatusEnum("simulation_status").notNull().default("idle"),
  // Controls the window during which this sport season appears in league creation/settings
  draftOn: date("draft_on").notNull(),
  draftOff: date("draft_off").notNull(),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const seasonParticipants = pgTable("season_participants", {
  id: uuid("id").primaryKey().defaultRandom(),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  participantId: uuid("participant_id").references(() => participants.id, {
    onDelete: "restrict",
  }),
  name: varchar("name", { length: 255 }).notNull(),
  shortName: varchar("short_name", { length: 100 }),
  externalId: varchar("external_id", { length: 255 }),
  expectedValue: decimal("expected_value", { precision: 10, scale: 4 }).notNull().default("0"),
  vorpValue: decimal("vorp_value", { precision: 10, scale: 4 }).notNull().default("0"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (table) => [
  uniqueIndex("participants_sports_season_name_unique").on(table.sportsSeasonId, table.name),
]);

export const participants = pgTable(
  "participants",
  {
    id: uuid("id").primaryKey().defaultRandom(),
    sportId: uuid("sport_id")
      .notNull()
      .references(() => sports.id, { onDelete: "cascade" }),
    name: varchar("name", { length: 255 }).notNull(),
    externalKey: varchar("external_key", { length: 255 }),
    metadata: jsonb("metadata"),
    createdAt: timestamp("created_at").defaultNow().notNull(),
    updatedAt: timestamp("updated_at").defaultNow().notNull(),
  },
  (t) => ({
    uniqueSportName: uniqueIndex("participants_sport_name_unique").on(
      t.sportId,
      t.name,
    ),
  }),
);

export const tournaments = pgTable(
  "tournaments",
  {
    id: uuid("id").primaryKey().defaultRandom(),
    sportId: uuid("sport_id")
      .notNull()
      .references(() => sports.id, { onDelete: "cascade" }),
    name: varchar("name", { length: 255 }).notNull(),
    year: integer("year").notNull(),
    startsAt: timestamp("starts_at"),
    endsAt: timestamp("ends_at"),
    surface: varchar("surface", { length: 50 }), // tennis only: hard | clay | grass
    location: varchar("location", { length: 255 }),
    status: tournamentStatusEnum("status").notNull().default("scheduled"),
    externalKey: varchar("external_key", { length: 255 }),
    createdAt: timestamp("created_at").defaultNow().notNull(),
    updatedAt: timestamp("updated_at").defaultNow().notNull(),
  },
  (t) => ({
    uniqueSportNameYear: uniqueIndex("tournaments_sport_name_year_unique").on(
      t.sportId,
      t.name,
      t.year,
    ),
  }),
);

export const tournamentResults = pgTable(
  "tournament_results",
  {
    id: uuid("id").primaryKey().defaultRandom(),
    tournamentId: uuid("tournament_id")
      .notNull()
      .references(() => tournaments.id, { onDelete: "cascade" }),
    participantId: uuid("participant_id")
      .notNull()
      .references(() => participants.id, { onDelete: "cascade" }),
    placement: integer("placement"),
    rawScore: decimal("raw_score", { precision: 10, scale: 2 }),
    createdAt: timestamp("created_at").defaultNow().notNull(),
    updatedAt: timestamp("updated_at").defaultNow().notNull(),
  },
  (t) => ({
    uniqueTournamentParticipant: uniqueIndex(
      "tournament_results_tournament_participant_unique",
    ).on(t.tournamentId, t.participantId),
  }),
);

export const participantSurfaceElos = pgTable(
  "participant_surface_elos",
  {
    id: uuid("id").primaryKey().defaultRandom(),
    participantId: uuid("participant_id")
      .notNull()
      .references(() => participants.id, { onDelete: "cascade" }),
    worldRanking: integer("world_ranking"),
    eloHard: integer("elo_hard"),
    eloClay: integer("elo_clay"),
    eloGrass: integer("elo_grass"),
    updatedAt: timestamp("updated_at").defaultNow().notNull(),
  },
  (t) => ({
    uniqueParticipant: uniqueIndex("participant_surface_elos_participant_unique").on(
      t.participantId,
    ),
  }),
);

export const seasonTemplateSports = pgTable("season_template_sports", {
  id: uuid("id").primaryKey().defaultRandom(),
  templateId: uuid("template_id")
    .notNull()
    .references(() => seasonTemplates.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  createdAt: timestamp("created_at").defaultNow().notNull(),
});

export const seasonSports = pgTable("season_sports", {
  id: uuid("id").primaryKey().defaultRandom(),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  createdAt: timestamp("created_at").defaultNow().notNull(),
});

export const sportsSeasonTournaments = pgTable(
  "sports_season_tournaments",
  {
    id: uuid("id").primaryKey().defaultRandom(),
    sportsSeasonId: uuid("sports_season_id")
      .notNull()
      .references(() => sportsSeasons.id, { onDelete: "cascade" }),
    tournamentId: uuid("tournament_id")
      .notNull()
      .references(() => tournaments.id, { onDelete: "cascade" }),
    createdAt: timestamp("created_at").defaultNow().notNull(),
  },
  (t) => ({
    uniqueSeasonTournament: uniqueIndex("sports_season_tournaments_unique").on(
      t.sportsSeasonId,
      t.tournamentId,
    ),
    tournamentIdIdx: index("sports_season_tournaments_tournament_id_idx").on(
      t.tournamentId,
    ),
  }),
);

export const seasonParticipantResults = pgTable("season_participant_results", {
  id: uuid("id").primaryKey().defaultRandom(),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  finalPosition: integer("final_position"),
  isPartialScore: boolean("is_partial_score").notNull().default(false),
  qualifyingPoints: decimal("qualifying_points", { precision: 10, scale: 2 }),
  notes: text("notes"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

// Scoring System Tables

// Individual scoring events (games, tournaments, races)
export const scoringEvents = pgTable("scoring_events", {
  id: uuid("id").primaryKey().defaultRandom(),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  tournamentId: uuid("tournament_id").references(() => tournaments.id, {
    onDelete: "set null",
  }),
  name: varchar("name", { length: 255 }).notNull(), // "2024 Masters", "Super Bowl LIX", etc.
  eventDate: date("event_date"),
  eventStartsAt: timestamp("event_starts_at", { withTimezone: true }),
  eventType: eventTypeEnum("event_type").notNull(),
  // For playoff events
  playoffRound: varchar("playoff_round", { length: 50 }), // "Quarterfinals", "Semifinals", "Finals"
  // For qualifying events
  isQualifyingEvent: boolean("is_qualifying_event").notNull().default(false),
  // Template system (Phase 2.6)
  bracketTemplateId: varchar("bracket_template_id", { length: 50 }), // "ncaa_68", "nfl_14", "simple_16", etc.
  scoringStartsAtRound: varchar("scoring_starts_at_round", { length: 50 }), // "Elite Eight", "Quarterfinals", etc.
  // Per-event region config for NCAA-style brackets (overrides template defaults)
  bracketRegionConfig: jsonb("bracket_region_config"), // BracketRegion[] | null
  isComplete: boolean("is_complete").notNull().default(false),
  completedAt: timestamp("completed_at"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (t) => ({
  qualifyingEventsRequireTournament: check(
    "scoring_events_qualifying_require_tournament",
    sql`NOT ${t.isQualifyingEvent} OR ${t.tournamentId} IS NOT NULL`,
  ),
}));

// Results for participants in specific events
export const eventResults = pgTable("event_results", {
  id: uuid("id").primaryKey().defaultRandom(),
  scoringEventId: uuid("scoring_event_id")
    .notNull()
    .references(() => scoringEvents.id, { onDelete: "cascade" }),
  seasonParticipantId: uuid("season_participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  // Placement in this specific event
  placement: integer("placement"),
  // For qualifying events: QP awarded in this event
  qualifyingPointsAwarded: decimal("qualifying_points_awarded", { precision: 10, scale: 2 }),
  // For playoff events: eliminated or advanced
  eliminated: boolean("eliminated"),
  // Raw sport-specific data (optional)
  rawScore: decimal("raw_score", { precision: 10, scale: 2 }), // strokes, points, time, etc.
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (t) => ({
  uniqueEventParticipant: uniqueIndex("event_results_event_participant_unique").on(
    t.scoringEventId,
    t.seasonParticipantId,
  ),
}));

// Playoff bracket matches (for display and tracking)
export const playoffMatches = pgTable("playoff_matches", {
  id: uuid("id").primaryKey().defaultRandom(),
  scoringEventId: uuid("scoring_event_id")
    .notNull()
    .references(() => scoringEvents.id, { onDelete: "cascade" }),
  round: varchar("round", { length: 50 }).notNull(), // "Quarterfinals", "Semifinals", "Finals"
  matchNumber: integer("match_number").notNull(), // 1, 2, 3, 4 (for QF); 1, 2 (for SF); 1 (for F)
  participant1Id: uuid("participant1_id").references(() => seasonParticipants.id, { onDelete: "set null" }),
  participant2Id: uuid("participant2_id").references(() => seasonParticipants.id, { onDelete: "set null" }),
  winnerId: uuid("winner_id").references(() => seasonParticipants.id, { onDelete: "set null" }),
  loserId: uuid("loser_id").references(() => seasonParticipants.id, { onDelete: "set null" }),
  isComplete: boolean("is_complete").notNull().default(false),
  // Optional detailed data
  participant1Score: decimal("participant1_score", { precision: 10, scale: 2 }),
  participant2Score: decimal("participant2_score", { precision: 10, scale: 2 }),
  // Template system (Phase 2.6)
  isScoring: boolean("is_scoring").notNull().default(true), // Does this match affect fantasy points?
  templateRound: varchar("template_round", { length: 50 }), // "First Four", "Round of 64", "Elite Eight", etc.
  seedInfo: varchar("seed_info", { length: 50 }), // "1 vs 16", "11a vs 11b", etc. (for display)
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

// Individual games within a playoff matchup (e.g., NBA 7-game series games)
export const playoffMatchGames = pgTable("playoff_match_games", {
  id: uuid("id").primaryKey().defaultRandom(),
  playoffMatchId: uuid("playoff_match_id")
    .notNull()
    .references(() => playoffMatches.id, { onDelete: "cascade" }),
  gameNumber: integer("game_number").notNull(),
  scheduledAt: timestamp("scheduled_at"),
  status: playoffMatchGameStatusEnum("status").notNull().default("scheduled"),
  participant1Score: decimal("participant1_score", { precision: 10, scale: 2 }),
  participant2Score: decimal("participant2_score", { precision: 10, scale: 2 }),
  winnerId: uuid("winner_id").references(() => seasonParticipants.id, { onDelete: "set null" }),
  notes: text("notes"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

// Moneyline odds per participant per matchup (single record per participant, overwritten on update)
export const playoffMatchOdds = pgTable("playoff_match_odds", {
  id: uuid("id").primaryKey().defaultRandom(),
  playoffMatchId: uuid("playoff_match_id")
    .notNull()
    .references(() => playoffMatches.id, { onDelete: "cascade" }),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  moneylineOdds: integer("moneyline_odds"), // American format e.g. -110, +150
  impliedProbability: decimal("implied_probability", { precision: 6, scale: 4 }),
  oddsSource: varchar("odds_source", { length: 100 }),
  recordedAt: timestamp("recorded_at").defaultNow().notNull(),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

// Aggregated participant qualifying points (for qualifying_points sports)
export const seasonParticipantQualifyingTotals = pgTable("season_participant_qualifying_totals", {
  id: uuid("id").primaryKey().defaultRandom(),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  totalQualifyingPoints: decimal("total_qualifying_points", { precision: 10, scale: 2 }).notNull().default("0"),
  eventsScored: integer("events_scored").notNull().default(0),
  // After finalization
  finalRanking: integer("final_ranking"), // 1-8 based on QP totals
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

// Configurable qualifying point values per sports season
export const qualifyingPointConfig = pgTable("qualifying_point_config", {
  id: uuid("id").primaryKey().defaultRandom(),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  placement: integer("placement").notNull(), // 1-16
  points: decimal("points", { precision: 10, scale: 2 }).notNull(),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

// Team scores aggregated by sport season
export const teamSportScores = pgTable("team_sport_scores", {
  id: uuid("id").primaryKey().defaultRandom(),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  totalPoints: decimal("total_points", { precision: 10, scale: 2 }).notNull().default("0"),
  participantsCompleted: integer("participants_completed").notNull().default(0), // How many picks have finished
  participantsTotal: integer("participants_total").notNull().default(0), // Total picks for this sport
  calculatedAt: timestamp("calculated_at").defaultNow().notNull(),
});

// Overall team standings (snapshot-based for movement tracking)
export const teamStandings = pgTable("team_standings", {
  id: uuid("id").primaryKey().defaultRandom(),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  totalPoints: decimal("total_points", { precision: 10, scale: 2 }).notNull().default("0"),
  currentRank: integer("current_rank").notNull(),
  previousRank: integer("previous_rank"), // For movement indicators
  // Tiebreaker data
  firstPlaceCount: integer("first_place_count").notNull().default(0),
  secondPlaceCount: integer("second_place_count").notNull().default(0),
  thirdPlaceCount: integer("third_place_count").notNull().default(0),
  fourthPlaceCount: integer("fourth_place_count").notNull().default(0),
  fifthPlaceCount: integer("fifth_place_count").notNull().default(0),
  sixthPlaceCount: integer("sixth_place_count").notNull().default(0),
  seventhPlaceCount: integer("seventh_place_count").notNull().default(0),
  eighthPlaceCount: integer("eighth_place_count").notNull().default(0),
  participantsRemaining: integer("participants_remaining").notNull().default(0), // Not yet finished
  // Expected value tracking (Phase 5.4)
  actualPoints: decimal("actual_points", { precision: 10, scale: 2 }), // Points from finished participants
  projectedPoints: decimal("projected_points", { precision: 10, scale: 2 }), // actualPoints + EVs of unfinished
  participantsFinished: integer("participants_finished"), // Count of finished participants
  calculatedAt: timestamp("calculated_at").defaultNow().notNull(),
});

// Daily standings snapshots for historical tracking
export const teamStandingsSnapshots = pgTable("team_standings_snapshots", {
  id: uuid("id").primaryKey().defaultRandom(),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  snapshotDate: date("snapshot_date").notNull(),
  totalPoints: decimal("total_points", { precision: 10, scale: 2 }).notNull().default("0"),
  rank: integer("rank").notNull(),
  // Tiebreaker data
  firstPlaceCount: integer("first_place_count").notNull().default(0),
  secondPlaceCount: integer("second_place_count").notNull().default(0),
  thirdPlaceCount: integer("third_place_count").notNull().default(0),
  fourthPlaceCount: integer("fourth_place_count").notNull().default(0),
  fifthPlaceCount: integer("fifth_place_count").notNull().default(0),
  sixthPlaceCount: integer("sixth_place_count").notNull().default(0),
  seventhPlaceCount: integer("seventh_place_count").notNull().default(0),
  eighthPlaceCount: integer("eighth_place_count").notNull().default(0),
  participantsRemaining: integer("participants_remaining").notNull().default(0),
  // Expected value tracking
  actualPoints: decimal("actual_points", { precision: 10, scale: 2 }), // Points from finished participants
  projectedPoints: decimal("projected_points", { precision: 10, scale: 2 }), // actualPoints + EVs of unfinished
  participantsFinished: integer("participants_finished"), // Count of finished participants
  createdAt: timestamp("created_at").defaultNow().notNull(),
}, (t) => ({
  uniqueTeamSeasonDate: uniqueIndex("team_standings_snapshots_unique").on(
    t.teamId, t.seasonId, t.snapshotDate
  ),
}));

// Expected value tracking (sports-season-specific)
export const seasonParticipantExpectedValues = pgTable("season_participant_expected_values", {
  id: uuid("id").primaryKey().defaultRandom(),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  // Probability distribution (stored as fractions, e.g. 0.1550 = 15.5%)
  probFirst: decimal("prob_first", { precision: 6, scale: 4 }).notNull().default("0"),
  probSecond: decimal("prob_second", { precision: 6, scale: 4 }).notNull().default("0"),
  probThird: decimal("prob_third", { precision: 6, scale: 4 }).notNull().default("0"),
  probFourth: decimal("prob_fourth", { precision: 6, scale: 4 }).notNull().default("0"),
  probFifth: decimal("prob_fifth", { precision: 6, scale: 4 }).notNull().default("0"),
  probSixth: decimal("prob_sixth", { precision: 6, scale: 4 }).notNull().default("0"),
  probSeventh: decimal("prob_seventh", { precision: 6, scale: 4 }).notNull().default("0"),
  probEighth: decimal("prob_eighth", { precision: 6, scale: 4 }).notNull().default("0"),
  // Calculated EV
  expectedValue: decimal("expected_value", { precision: 10, scale: 4 }).notNull().default("0"),
  // Metadata
  source: probabilitySourceEnum("source").default("manual"), // How probabilities were generated
  sourceOdds: integer("source_odds"), // Original odds if source is futures_odds (American odds format)
  sourceElo: integer("source_elo"), // Raw Elo rating if source is elo-based simulator (e.g. snooker_bracket, darts_bracket)
  worldRanking: integer("world_ranking"), // World ranking for sports that use it for bracket seeding (e.g. darts_bracket)
  calculatedAt: timestamp("calculated_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (t) => ({
  uniqueParticipantSeason: uniqueIndex("participant_ev_participant_season_unique").on(
    t.participantId, t.sportsSeasonId
  ),
}));

// Tournament group stage tables (for FIFA World Cup style tournaments)
export const tournamentGroups = pgTable("tournament_groups", {
  id: uuid("id").primaryKey().defaultRandom(),
  scoringEventId: uuid("scoring_event_id")
    .notNull()
    .references(() => scoringEvents.id, { onDelete: "cascade" }),
  groupName: varchar("group_name", { length: 10 }).notNull(), // "A" through "L"
  createdAt: timestamp("created_at").defaultNow().notNull(),
});

export const tournamentGroupMembers = pgTable("tournament_group_members", {
  id: uuid("id").primaryKey().defaultRandom(),
  tournamentGroupId: uuid("tournament_group_id")
    .notNull()
    .references(() => tournamentGroups.id, { onDelete: "cascade" }),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  eliminated: boolean("eliminated").notNull().default(false),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

export const groupStageMatches = pgTable("group_stage_matches", {
  id: uuid("id").primaryKey().defaultRandom(),
  tournamentGroupId: uuid("tournament_group_id")
    .notNull()
    .references(() => tournamentGroups.id, { onDelete: "cascade" }),
  participant1Id: uuid("participant1_id")
    .notNull()
    .references(() => seasonParticipants.id),
  participant2Id: uuid("participant2_id")
    .notNull()
    .references(() => seasonParticipants.id),
  participant1Score: integer("participant1_score"),
  participant2Score: integer("participant2_score"),
  isComplete: boolean("is_complete").notNull().default(false),
  matchday: integer("matchday").notNull(), // 1, 2, or 3 (round of group play)
  scheduledAt: timestamp("scheduled_at"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (t) => [
  // Prevent duplicate pairings within the same group (order-independent)
  uniqueIndex("group_stage_matches_group_pair_unique")
    .on(t.tournamentGroupId, t.participant1Id, t.participant2Id),
]);

// Participant season results (for F1 current points tracking during season)
export const participantSeasonResults = pgTable("participant_season_results", {
  id: uuid("id").primaryKey().defaultRandom(),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  currentPoints: decimal("current_points", { precision: 10, scale: 2 }).notNull().default("0"), // Current F1 championship points, etc.
  currentPosition: integer("current_position"), // Current standings position
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
});

// EV snapshots — historical record of participant EV over time (one per participant per sport season per day)
export const participantEvSnapshots = pgTable("participant_ev_snapshots", {
  id: uuid("id").primaryKey().defaultRandom(),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  snapshotDate: date("snapshot_date").notNull(),
  // Probability distribution (stored as fractions, e.g. 0.1550 = 15.5%)
  probFirst: decimal("prob_first", { precision: 5, scale: 2 }).notNull().default("0"),
  probSecond: decimal("prob_second", { precision: 5, scale: 2 }).notNull().default("0"),
  probThird: decimal("prob_third", { precision: 5, scale: 2 }).notNull().default("0"),
  probFourth: decimal("prob_fourth", { precision: 5, scale: 2 }).notNull().default("0"),
  probFifth: decimal("prob_fifth", { precision: 5, scale: 2 }).notNull().default("0"),
  probSixth: decimal("prob_sixth", { precision: 5, scale: 2 }).notNull().default("0"),
  probSeventh: decimal("prob_seventh", { precision: 5, scale: 2 }).notNull().default("0"),
  probEighth: decimal("prob_eighth", { precision: 5, scale: 2 }).notNull().default("0"),
  calculatedEV: decimal("calculated_ev", { precision: 10, scale: 4 }).notNull().default("0"),
  source: varchar("source", { length: 100 }).notNull(), // e.g. 'bracket_monte_carlo', 'f1_standings_model'
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (t) => ({
  uniqueParticipantSeasonDate: uniqueIndex("participant_ev_snapshots_unique").on(
    t.participantId, t.sportsSeasonId, t.snapshotDate
  ),
}));

// Team EV snapshots — historical projected points per team per fantasy season per day
export const teamEvSnapshots = pgTable("team_ev_snapshots", {
  id: uuid("id").primaryKey().defaultRandom(),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  snapshotDate: date("snapshot_date").notNull(),
  projectedPoints: decimal("projected_points", { precision: 10, scale: 2 }).notNull().default("0"),
  actualPoints: decimal("actual_points", { precision: 10, scale: 2 }).notNull().default("0"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
}, (t) => ({
  uniqueTeamSeasonDate: uniqueIndex("team_ev_snapshots_unique").on(
    t.teamId, t.seasonId, t.snapshotDate
  ),
}));

// Relations
export const sportsRelations = relations(sports, ({ many }) => ({
  sportsSeasons: many(sportsSeasons),
  tournaments: many(tournaments),
  participants: many(participants),
}));

export const sportsSeasonsRelations = relations(sportsSeasons, ({ one, many }) => ({
  sport: one(sports, {
    fields: [sportsSeasons.sportId],
    references: [sports.id],
  }),
  participants: many(seasonParticipants),
  seasonTemplateSports: many(seasonTemplateSports),
  seasonSports: many(seasonSports),
  participantResults: many(seasonParticipantResults),
  regularSeasonStandings: many(regularSeasonStandings),
  pendingStandingsMappings: many(pendingStandingsMappings),
  sportsSeasonTournaments: many(sportsSeasonTournaments),
}));

export const seasonParticipantsRelations = relations(seasonParticipants, ({ one, many }) => ({
  sportsSeason: one(sportsSeasons, {
    fields: [seasonParticipants.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
  canonicalParticipant: one(participants, {
    fields: [seasonParticipants.participantId],
    references: [participants.id],
  }),
  results: many(seasonParticipantResults),
  regularSeasonStandings: many(regularSeasonStandings),
}));

export const participantsRelations = relations(participants, ({ one, many }) => ({
  sport: one(sports, {
    fields: [participants.sportId],
    references: [sports.id],
  }),
  seasonParticipants: many(seasonParticipants),
  tournamentResults: many(tournamentResults),
  surfaceElo: one(participantSurfaceElos, {
    fields: [participants.id],
    references: [participantSurfaceElos.participantId],
  }),
  golfSkills: one(participantGolfSkills, {
    fields: [participants.id],
    references: [participantGolfSkills.participantId],
  }),
}));

export const tournamentsRelations = relations(tournaments, ({ one, many }) => ({
  sport: one(sports, {
    fields: [tournaments.sportId],
    references: [sports.id],
  }),
  scoringEvents: many(scoringEvents),
  tournamentResults: many(tournamentResults),
  sportsSeasonTournaments: many(sportsSeasonTournaments),
}));

export const tournamentResultsRelations = relations(tournamentResults, ({ one }) => ({
  tournament: one(tournaments, {
    fields: [tournamentResults.tournamentId],
    references: [tournaments.id],
  }),
  participant: one(participants, {
    fields: [tournamentResults.participantId],
    references: [participants.id],
  }),
}));

export const participantSurfaceElosRelations = relations(
  participantSurfaceElos,
  ({ one }) => ({
    participant: one(participants, {
      fields: [participantSurfaceElos.participantId],
      references: [participants.id],
    }),
  }),
);

export const seasonTemplatesRelations = relations(seasonTemplates, ({ many }) => ({
  seasonTemplateSports: many(seasonTemplateSports),
  seasons: many(seasons),
}));

export const seasonTemplateSportsRelations = relations(seasonTemplateSports, ({ one }) => ({
  template: one(seasonTemplates, {
    fields: [seasonTemplateSports.templateId],
    references: [seasonTemplates.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [seasonTemplateSports.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

export const seasonsRelations = relations(seasons, ({ one, many }) => ({
  league: one(leagues, {
    fields: [seasons.leagueId],
    references: [leagues.id],
  }),
  template: one(seasonTemplates, {
    fields: [seasons.templateId],
    references: [seasonTemplates.id],
  }),
  teams: many(teams),
  seasonSports: many(seasonSports),
}));

export const seasonSportsRelations = relations(seasonSports, ({ one }) => ({
  season: one(seasons, {
    fields: [seasonSports.seasonId],
    references: [seasons.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [seasonSports.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

export const sportsSeasonTournamentsRelations = relations(
  sportsSeasonTournaments,
  ({ one }) => ({
    sportsSeason: one(sportsSeasons, {
      fields: [sportsSeasonTournaments.sportsSeasonId],
      references: [sportsSeasons.id],
    }),
    tournament: one(tournaments, {
      fields: [sportsSeasonTournaments.tournamentId],
      references: [tournaments.id],
    }),
  }),
);

export const seasonParticipantResultsRelations = relations(seasonParticipantResults, ({ one }) => ({
  participant: one(seasonParticipants, {
    fields: [seasonParticipantResults.participantId],
    references: [seasonParticipants.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [seasonParticipantResults.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

export const teamsRelations = relations(teams, ({ one }) => ({
  season: one(seasons, {
    fields: [teams.seasonId],
    references: [seasons.id],
  }),
  draftSlot: one(draftSlots, {
    fields: [teams.id],
    references: [draftSlots.teamId],
  }),
}));

export const draftSlotsRelations = relations(draftSlots, ({ one }) => ({
  season: one(seasons, {
    fields: [draftSlots.seasonId],
    references: [seasons.id],
  }),
  team: one(teams, {
    fields: [draftSlots.teamId],
    references: [teams.id],
  }),
}));

export const draftPicksRelations = relations(draftPicks, ({ one }) => ({
  season: one(seasons, {
    fields: [draftPicks.seasonId],
    references: [seasons.id],
  }),
  team: one(teams, {
    fields: [draftPicks.teamId],
    references: [teams.id],
  }),
  participant: one(seasonParticipants, {
    fields: [draftPicks.participantId],
    references: [seasonParticipants.id],
  }),
}));

export const draftQueueRelations = relations(draftQueue, ({ one }) => ({
  season: one(seasons, {
    fields: [draftQueue.seasonId],
    references: [seasons.id],
  }),
  team: one(teams, {
    fields: [draftQueue.teamId],
    references: [teams.id],
  }),
  participant: one(seasonParticipants, {
    fields: [draftQueue.participantId],
    references: [seasonParticipants.id],
  }),
}));

export const watchlistRelations = relations(watchlist, ({ one }) => ({
  season: one(seasons, {
    fields: [watchlist.seasonId],
    references: [seasons.id],
  }),
  team: one(teams, {
    fields: [watchlist.teamId],
    references: [teams.id],
  }),
  participant: one(seasonParticipants, {
    fields: [watchlist.participantId],
    references: [seasonParticipants.id],
  }),
}));

export const autodraftSettingsRelations = relations(autodraftSettings, ({ one }) => ({
  season: one(seasons, {
    fields: [autodraftSettings.seasonId],
    references: [seasons.id],
  }),
  team: one(teams, {
    fields: [autodraftSettings.teamId],
    references: [teams.id],
  }),
}));

// Scoring System Relations

export const scoringEventsRelations = relations(scoringEvents, ({ one, many }) => ({
  sportsSeason: one(sportsSeasons, {
    fields: [scoringEvents.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
  tournament: one(tournaments, {
    fields: [scoringEvents.tournamentId],
    references: [tournaments.id],
  }),
  eventResults: many(eventResults),
  playoffMatches: many(playoffMatches),
  tournamentGroups: many(tournamentGroups),
  cs2MajorStageResults: many(cs2MajorStageResults),
}));

export const eventResultsRelations = relations(eventResults, ({ one }) => ({
  scoringEvent: one(scoringEvents, {
    fields: [eventResults.scoringEventId],
    references: [scoringEvents.id],
  }),
  seasonParticipant: one(seasonParticipants, {
    fields: [eventResults.seasonParticipantId],
    references: [seasonParticipants.id],
  }),
}));

export const playoffMatchesRelations = relations(playoffMatches, ({ one, many }) => ({
  scoringEvent: one(scoringEvents, {
    fields: [playoffMatches.scoringEventId],
    references: [scoringEvents.id],
  }),
  participant1: one(seasonParticipants, {
    fields: [playoffMatches.participant1Id],
    references: [seasonParticipants.id],
  }),
  participant2: one(seasonParticipants, {
    fields: [playoffMatches.participant2Id],
    references: [seasonParticipants.id],
  }),
  winner: one(seasonParticipants, {
    fields: [playoffMatches.winnerId],
    references: [seasonParticipants.id],
  }),
  loser: one(seasonParticipants, {
    fields: [playoffMatches.loserId],
    references: [seasonParticipants.id],
  }),
  games: many(playoffMatchGames),
  odds: many(playoffMatchOdds),
}));

export const playoffMatchGamesRelations = relations(playoffMatchGames, ({ one }) => ({
  match: one(playoffMatches, {
    fields: [playoffMatchGames.playoffMatchId],
    references: [playoffMatches.id],
  }),
  winner: one(seasonParticipants, {
    fields: [playoffMatchGames.winnerId],
    references: [seasonParticipants.id],
  }),
}));

export const playoffMatchOddsRelations = relations(playoffMatchOdds, ({ one }) => ({
  match: one(playoffMatches, {
    fields: [playoffMatchOdds.playoffMatchId],
    references: [playoffMatches.id],
  }),
  participant: one(seasonParticipants, {
    fields: [playoffMatchOdds.participantId],
    references: [seasonParticipants.id],
  }),
}));

export const seasonParticipantQualifyingTotalsRelations = relations(seasonParticipantQualifyingTotals, ({ one }) => ({
  participant: one(seasonParticipants, {
    fields: [seasonParticipantQualifyingTotals.participantId],
    references: [seasonParticipants.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [seasonParticipantQualifyingTotals.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

export const qualifyingPointConfigRelations = relations(qualifyingPointConfig, ({ one }) => ({
  sportsSeason: one(sportsSeasons, {
    fields: [qualifyingPointConfig.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

export const teamSportScoresRelations = relations(teamSportScores, ({ one }) => ({
  team: one(teams, {
    fields: [teamSportScores.teamId],
    references: [teams.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [teamSportScores.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

export const teamStandingsRelations = relations(teamStandings, ({ one }) => ({
  team: one(teams, {
    fields: [teamStandings.teamId],
    references: [teams.id],
  }),
  season: one(seasons, {
    fields: [teamStandings.seasonId],
    references: [seasons.id],
  }),
}));

export const teamStandingsSnapshotsRelations = relations(teamStandingsSnapshots, ({ one }) => ({
  team: one(teams, {
    fields: [teamStandingsSnapshots.teamId],
    references: [teams.id],
  }),
  season: one(seasons, {
    fields: [teamStandingsSnapshots.seasonId],
    references: [seasons.id],
  }),
}));

export const seasonParticipantExpectedValuesRelations = relations(seasonParticipantExpectedValues, ({ one }) => ({
  participant: one(seasonParticipants, {
    fields: [seasonParticipantExpectedValues.participantId],
    references: [seasonParticipants.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [seasonParticipantExpectedValues.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

export const participantSeasonResultsRelations = relations(participantSeasonResults, ({ one }) => ({
  participant: one(seasonParticipants, {
    fields: [participantSeasonResults.participantId],
    references: [seasonParticipants.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [participantSeasonResults.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

// Tournament Group Relations
export const tournamentGroupsRelations = relations(tournamentGroups, ({ one, many }) => ({
  scoringEvent: one(scoringEvents, {
    fields: [tournamentGroups.scoringEventId],
    references: [scoringEvents.id],
  }),
  members: many(tournamentGroupMembers),
  matches: many(groupStageMatches),
}));

export const tournamentGroupMembersRelations = relations(tournamentGroupMembers, ({ one }) => ({
  group: one(tournamentGroups, {
    fields: [tournamentGroupMembers.tournamentGroupId],
    references: [tournamentGroups.id],
  }),
  participant: one(seasonParticipants, {
    fields: [tournamentGroupMembers.participantId],
    references: [seasonParticipants.id],
  }),
}));

export const groupStageMatchesRelations = relations(groupStageMatches, ({ one }) => ({
  group: one(tournamentGroups, {
    fields: [groupStageMatches.tournamentGroupId],
    references: [tournamentGroups.id],
  }),
  participant1: one(seasonParticipants, {
    fields: [groupStageMatches.participant1Id],
    references: [seasonParticipants.id],
    relationName: "groupMatchParticipant1",
  }),
  participant2: one(seasonParticipants, {
    fields: [groupStageMatches.participant2Id],
    references: [seasonParticipants.id],
    relationName: "groupMatchParticipant2",
  }),
}));

export const participantEvSnapshotsRelations = relations(participantEvSnapshots, ({ one }) => ({
  participant: one(seasonParticipants, {
    fields: [participantEvSnapshots.participantId],
    references: [seasonParticipants.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [participantEvSnapshots.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

export const teamEvSnapshotsRelations = relations(teamEvSnapshots, ({ one }) => ({
  team: one(teams, {
    fields: [teamEvSnapshots.teamId],
    references: [teams.id],
  }),
  season: one(seasons, {
    fields: [teamEvSnapshots.seasonId],
    references: [seasons.id],
  }),
}));

// Regular season W/L standings for team-sport playoff_bracket seasons (NBA, NHL, etc.)
// Populated by the standings sync service; syncedAt = null means manually entered
export const regularSeasonStandings = pgTable("regular_season_standings", {
  id: uuid("id").primaryKey().defaultRandom(),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  wins: integer("wins").notNull().default(0),
  losses: integer("losses").notNull().default(0),
  otLosses: integer("ot_losses"),            // NHL overtime losses; null for NBA
  ties: integer("ties"),                      // future sports (e.g. soccer)
  winPct: decimal("win_pct", { precision: 5, scale: 4 }),
  gamesPlayed: integer("games_played").notNull().default(0),
  gamesBack: decimal("games_back", { precision: 5, scale: 1 }),
  conference: varchar("conference", { length: 100 }),
  division: varchar("division", { length: 100 }),
  conferenceRank: integer("conference_rank"),
  divisionRank: integer("division_rank"),
  leagueRank: integer("league_rank"),
  streak: varchar("streak", { length: 20 }),       // e.g. "W3", "L2"
  lastTen: varchar("last_ten", { length: 15 }),    // e.g. "7-2-1"
  homeRecord: varchar("home_record", { length: 15 }),
  awayRecord: varchar("away_record", { length: 15 }),
  externalTeamId: varchar("external_team_id", { length: 255 }),
  srs: decimal("srs", { precision: 6, scale: 2 }), // Simple Rating System (point diff adjusted for SOS)
  syncedAt: timestamp("synced_at"),                // null = manually entered
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (table) => ({
  uniqueParticipantSeason: uniqueIndex("rss_participant_season_idx")
    .on(table.participantId, table.sportsSeasonId),
}));

export const regularSeasonStandingsRelations = relations(regularSeasonStandings, ({ one }) => ({
  participant: one(seasonParticipants, {
    fields: [regularSeasonStandings.participantId],
    references: [seasonParticipants.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [regularSeasonStandings.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

// Unmatched teams from a standings sync — awaiting admin resolution.
// Once the admin maps an external team to a participant, this record is deleted
// and the standing + participant.externalId are written.
export const pendingStandingsMappings = pgTable("pending_standings_mappings", {
  id: uuid("id").primaryKey().defaultRandom(),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  externalTeamId: varchar("external_team_id", { length: 255 }).notNull(),
  teamName: varchar("team_name", { length: 255 }).notNull(),
  // Full standing data from the API, stored as JSON for use when resolving
  standingData: jsonb("standing_data").notNull(),
  createdAt: timestamp("created_at").defaultNow().notNull(),
}, (table) => ({
  uniqueSeasonExternalId: uniqueIndex("psm_season_external_id_idx")
    .on(table.sportsSeasonId, table.externalTeamId),
}));

export const pendingStandingsMappingsRelations = relations(pendingStandingsMappings, ({ one }) => ({
  sportsSeason: one(sportsSeasons, {
    fields: [pendingStandingsMappings.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

// Surface Elos are now stored canonically in `participant_surface_elos`
// (defined above). The per-window `season_participant_surface_elos` table
// was dropped in Phase 4 of the canonical tournament layer migration.

// ─── Participant Golf Skills (Canonical) ──────────────────────────────────────
// Canonical golf skill data: one row per real-world player, shared across all
// sports season windows (matching the participant_surface_elos pattern).
//
// Primary metric: SG: Total (strokes gained per round vs. field average).
// Optional per-major American odds allow major-specific probability blending.
//
// The per-window `season_participant_golf_skills` table (previously named
// `participant_golf_skills`) was the old per-season version. It will be dropped
// after this migration is confirmed working.
// TODO: Drop `season_participant_golf_skills` table and remove its schema +
// relations once the canonical migration is confirmed working.

export const participantGolfSkills = pgTable("participant_golf_skills", {
  id: uuid("id").primaryKey().defaultRandom(),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => participants.id, { onDelete: "cascade" }),
  sgTotal: decimal("sg_total", { precision: 5, scale: 2 }),
  datagolfRank: integer("datagolf_rank"),
  mastersOdds: integer("masters_odds"),
  usOpenOdds: integer("us_open_odds"),
  openChampionshipOdds: integer("open_championship_odds"),
  pgaChampionshipOdds: integer("pga_championship_odds"),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (t) => ({
  uniqueParticipant: uniqueIndex("participant_golf_skills_participant_unique")
    .on(t.participantId),
}));

export const participantGolfSkillsRelations = relations(participantGolfSkills, ({ one }) => ({
  participant: one(participants, {
    fields: [participantGolfSkills.participantId],
    references: [participants.id],
  }),
}));

export const seasonParticipantGolfSkills = pgTable("season_participant_golf_skills", {
  id: uuid("id").primaryKey().defaultRandom(),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  sportsSeasonId: uuid("sports_season_id")
    .notNull()
    .references(() => sportsSeasons.id, { onDelete: "cascade" }),
  sgTotal: decimal("sg_total", { precision: 5, scale: 2 }),
  datagolfRank: integer("datagolf_rank"),
  mastersOdds: integer("masters_odds"),
  usOpenOdds: integer("us_open_odds"),
  openChampionshipOdds: integer("open_championship_odds"),
  pgaChampionshipOdds: integer("pga_championship_odds"),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (t) => ({
  uniqueParticipantSeason: uniqueIndex("season_participant_golf_skills_unique")
    .on(t.participantId, t.sportsSeasonId),
}));

export const seasonParticipantGolfSkillsRelations = relations(seasonParticipantGolfSkills, ({ one }) => ({
  participant: one(seasonParticipants, {
    fields: [seasonParticipantGolfSkills.participantId],
    references: [seasonParticipants.id],
  }),
  sportsSeason: one(sportsSeasons, {
    fields: [seasonParticipantGolfSkills.sportsSeasonId],
    references: [sportsSeasons.id],
  }),
}));

// ─── CS2 Major Stage Results ───────────────────────────────────────────────────
// Tracks which teams are assigned to each Swiss stage of a CS2 Major, and their
// advancement/elimination results. One row per (scoringEventId, participantId).
//
// stageEntry:          1=Opening Stage, 2=Elimination Stage, 3=Decider Stage
// stageEliminated:     which stage they were eliminated at (null = made Champions Stage)
// stageEliminatedWins: wins at time of elimination (0, 1, or 2); used to rank teams
//                      within placements 9–16 for Stage 3 QP (2-3 > 1-3 > 0-3)
// finalPlacement:      overall placement 1–32 (set after event completes)

export const cs2MajorStageResults = pgTable("cs2_major_stage_results", {
  id: uuid("id").primaryKey().defaultRandom(),
  scoringEventId: uuid("scoring_event_id")
    .notNull()
    .references(() => scoringEvents.id, { onDelete: "cascade" }),
  participantId: uuid("participant_id")
    .notNull()
    .references(() => seasonParticipants.id, { onDelete: "cascade" }),
  stageEntry: integer("stage_entry").notNull(),
  stageEliminated: integer("stage_eliminated"),
  stageEliminatedWins: integer("stage_eliminated_wins"),
  finalPlacement: integer("final_placement"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
  updatedAt: timestamp("updated_at").defaultNow().notNull(),
}, (t) => ({
  uniqueEventParticipant: uniqueIndex("cs2_major_stage_results_unique")
    .on(t.scoringEventId, t.participantId),
}));

export const cs2MajorStageResultsRelations = relations(cs2MajorStageResults, ({ one }) => ({
  scoringEvent: one(scoringEvents, {
    fields: [cs2MajorStageResults.scoringEventId],
    references: [scoringEvents.id],
  }),
  participant: one(seasonParticipants, {
    fields: [cs2MajorStageResults.participantId],
    references: [seasonParticipants.id],
  }),
}));

// ─── Commissioner Audit Log ────────────────────────────────────────────────────
// Immutable log of significant commissioner/admin actions per season.
// Readable by all league members for transparency; writable only by the
// server-side route actions that perform the underlying operations.

export const auditActionEnum = pgEnum("audit_action", [
  "league_settings_changed",
  "draft_settings_changed",
  "scoring_rules_changed",
  "sports_changed",
  "draft_order_set",
  "draft_order_randomized",
  "draft_started",
  "draft_paused",
  "draft_resumed",
  "draft_reset",
  "draft_rollback",
  "force_autopick",
  "force_manual_pick",
  "draft_pick_changed",
  "time_bank_edited",
]);

export const commissionerAuditLog = pgTable("commissioner_audit_log", {
  id: uuid("id").primaryKey().defaultRandom(),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  leagueId: uuid("league_id")
    .notNull()
    .references(() => leagues.id, { onDelete: "cascade" }),
  actorUserId: varchar("actor_user_id", { length: 255 }).notNull(),
  actorDisplayName: varchar("actor_display_name", { length: 255 }),
  action: auditActionEnum("action").notNull(),
  affectedTeamIds: text("affected_team_ids").array(),
  details: jsonb("details"),
  createdAt: timestamp("created_at").defaultNow().notNull(),
}, (t) => ({
  auditLogSeasonIdx: index("audit_log_season_id_idx").on(t.seasonId, t.createdAt),
}));

export const commissionerAuditLogRelations = relations(commissionerAuditLog, ({ one }) => ({
  season: one(seasons, {
    fields: [commissionerAuditLog.seasonId],
    references: [seasons.id],
  }),
  league: one(leagues, {
    fields: [commissionerAuditLog.leagueId],
    references: [leagues.id],
  }),
}));

// ─── Team Score Events ─────────────────────────────────────────────────────────
// Records each time a team's total fantasy points increase as a result of a
// scoring event completing. Used for the "Recent Scores" feed on the standings
// page. One row per team per match (bracket sports) or per event (fallback).
// Participant IDs are stored at write time so attribution is accurate regardless
// of future match results.

export const teamScoreEvents = pgTable("team_score_events", {
  id: uuid("id").primaryKey().defaultRandom(),
  teamId: uuid("team_id")
    .notNull()
    .references(() => teams.id, { onDelete: "cascade" }),
  seasonId: uuid("season_id")
    .notNull()
    .references(() => seasons.id, { onDelete: "cascade" }),
  scoringEventId: uuid("scoring_event_id")
    .references(() => scoringEvents.id, { onDelete: "set null" }),
  scoringEventName: varchar("scoring_event_name", { length: 255 }),
  sportName: varchar("sport_name", { length: 255 }),
  // Set for bracket sports (one row per match); NULL for event-level fallback rows.
  matchId: uuid("match_id").references(() => playoffMatches.id, { onDelete: "set null" }),
  // Participant IDs captured at write time — the specific drafted participants
  // whose win/advancement caused this score change.
  participantIds: text("participant_ids").array(),
  pointsDelta: decimal("points_delta", { precision: 10, scale: 2 }).notNull(),
  occurredAt: timestamp("occurred_at").defaultNow().notNull(),
}, (t) => ({
  // Per-match rows: one row per (team, season, match)
  uniqueTeamSeasonMatch: uniqueIndex("team_score_events_match_unique")
    .on(t.teamId, t.seasonId, t.matchId)
    .where(sql`match_id IS NOT NULL`),
  // Event-level fallback rows: one row per (team, season, event) when no match data
  uniqueTeamSeasonEvent: uniqueIndex("team_score_events_event_unique")
    .on(t.teamId, t.seasonId, t.scoringEventId)
    .where(sql`match_id IS NULL`),
}));

export const teamScoreEventsRelations = relations(teamScoreEvents, ({ one }) => ({
  team: one(teams, {
    fields: [teamScoreEvents.teamId],
    references: [teams.id],
  }),
  season: one(seasons, {
    fields: [teamScoreEvents.seasonId],
    references: [seasons.id],
  }),
  scoringEvent: one(scoringEvents, {
    fields: [teamScoreEvents.scoringEventId],
    references: [scoringEvents.id],
  }),
}));