import { PlayoffBracket } from "./PlayoffBracket";
import { SeasonStandings } from "./SeasonStandings";
import { QualifyingPointsStandings } from "./QualifyingPointsStandings";
import { Card, CardContent, CardHeader, CardTitle } from "~/components/ui/card";
import { AlertCircle } from "lucide-react";

/**
 * SportSeasonDisplay - Pattern detection and display component
 *
 * Detects the scoring pattern of a sports season and displays the appropriate
 * component (PlayoffBracket, SeasonStandings, or QualifyingPointsStandings).
 *
 * This is the main integration point for displaying sport-specific results
 * to league members.
 */

type ScoringPattern =
  | "playoff_bracket"
  | "season_standings"
  | "qualifying_points";

interface Match {
  id: string;
  round: string;
  matchNumber: number;
  participant1Id: string | null;
  participant2Id: string | null;
  winnerId: string | null;
  loserId: string | null;
  isComplete: boolean;
  participant1Score: string | null;
  participant2Score: string | null;
  participant1?: {
    id: string;
    name: string;
  } | null;
  participant2?: {
    id: string;
    name: string;
  } | null;
  winner?: {
    id: string;
    name: string;
  } | null;
}

interface SeasonStanding {
  id: string;
  championshipPoints: string;
  position: number;
  previousPosition?: number | null;
  participant: {
    id: string;
    name: string;
  };
}

interface QPStanding {
  id: string;
  totalQualifyingPoints: string;
  eventsScored: number;
  finalRanking: number | null;
  participant: {
    id: string;
    name: string;
  };
}

interface TeamOwnership {
  participantId: string;
  teamName: string;
  teamId: string;
  ownerName?: string;
}

interface ScoringRules {
  pointsFor1st: number;
  pointsFor2nd: number;
  pointsFor3rd: number;
  pointsFor4th: number;
  pointsFor5th: number;
  pointsFor6th: number;
  pointsFor7th: number;
  pointsFor8th: number;
}

interface SportSeasonDisplayProps {
  scoringPattern: ScoringPattern;
  sportSeasonName: string;
  sportName: string;

  // Playoff data
  playoffMatches?: Match[];
  playoffRounds?: string[];

  // Season standings data (F1)
  seasonStandings?: SeasonStanding[];
  seasonIsFinalized?: boolean;

  // Qualifying points data (Golf/Tennis)
  qpStandings?: QPStanding[];
  qpIsFinalized?: boolean;
  totalMajors?: number | null;
  majorsCompleted?: number;
  canFinalize?: boolean;

  // Shared data
  teamOwnerships?: TeamOwnership[];
  userParticipantIds?: string[];
  scoringRules?: ScoringRules | null;
  showOwnership?: boolean;
}

export function SportSeasonDisplay({
  scoringPattern,
  sportSeasonName,
  sportName,
  playoffMatches = [],
  playoffRounds = [],
  seasonStandings = [],
  seasonIsFinalized = false,
  qpStandings = [],
  qpIsFinalized = false,
  totalMajors,
  majorsCompleted = 0,
  canFinalize = false,
  teamOwnerships = [],
  userParticipantIds = [],
  scoringRules = null,
  showOwnership = true,
}: SportSeasonDisplayProps) {
  // Pattern detection and component selection
  switch (scoringPattern) {
    case "playoff_bracket":
      // Display playoff bracket
      return (
        <PlayoffBracket
          matches={playoffMatches}
          rounds={playoffRounds}
          teamOwnerships={teamOwnerships}
          showOwnership={showOwnership}
          title={`${sportName} ${sportSeasonName}`}
          description="Playoff bracket"
        />
      );

    case "season_standings":
      // Display F1-style championship standings
      return (
        <SeasonStandings
          standings={seasonStandings}
          teamOwnerships={teamOwnerships}
          userParticipantIds={userParticipantIds}
          showOwnership={showOwnership}
          isFinalized={seasonIsFinalized}
          title={`${sportName} ${sportSeasonName}`}
          description="Championship standings - positions calculated from points"
        />
      );

    case "qualifying_points":
      // Display qualifying points standings (Golf/Tennis)
      return (
        <QualifyingPointsStandings
          standings={qpStandings}
          scoringRules={scoringRules}
          isFinalized={qpIsFinalized}
          totalMajors={totalMajors}
          majorsCompleted={majorsCompleted}
          canFinalize={canFinalize}
        />
      );

    default:
      // Unknown pattern - show error
      return (
        <Card className="border-destructive/50">
          <CardHeader>
            <CardTitle className="text-destructive flex items-center gap-2">
              <AlertCircle className="h-5 w-5" />
              Unknown Scoring Pattern
            </CardTitle>
          </CardHeader>
          <CardContent>
            <p className="text-sm text-muted-foreground">
              This sports season uses an unsupported scoring pattern: "
              {scoringPattern}". Please contact support.
            </p>
          </CardContent>
        </Card>
      );
  }
}