import { Repository, Not, In } from 'typeorm';
import { AppDataSource } from '../ormconfig';
import { GameAggregate, GameState } from '../../Domain/Game/GameAggregate';
import { IGameRepository } from '../../Domain/IRepository/IGameRepository';
import { logDatabase, logError } from '../../Application/Services/Logger';

export class GameRepository implements IGameRepository {
    private repo: Repository<GameAggregate>;
    constructor() {
        this.repo = AppDataSource.getRepository(GameAggregate);
    }

    async create(game: Partial<GameAggregate>): Promise<GameAggregate> {
        const startTime = performance.now();
        try {
            const result = await this.repo.save(game);
            const endTime = performance.now();
            logDatabase('Game created', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${result.id}, gameCode: ${result.gamecode}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game creation failed', `executionTime: ${Math.round(endTime - startTime)}ms`);
            logError('GameRepository.create error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to create game in database');
        }
    }

    async findByPage(from: number, to: number): Promise<{ games: GameAggregate[], totalCount: number }> {
        const startTime = performance.now();
        try {
            const limit = to - from + 1;
            const offset = from;

            // Get total count for pagination
            const totalCount = await this.repo.count({
                where: { state: Not(GameState.CANCELLED) }
            });
            
            // Get paginated results
            const games = await this.repo.find({
                where: { state: Not(GameState.CANCELLED) },
                order: { updateDate: 'DESC' },
                take: limit,
                skip: offset
            });

            const endTime = performance.now();
            logDatabase('Game page query completed', `executionTime: ${Math.round(endTime - startTime)}ms, found: ${games.length}, total: ${totalCount}, from: ${from}, to: ${to}`);

            return { games, totalCount };
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game page query failed', `executionTime: ${Math.round(endTime - startTime)}ms, from: ${from}, to: ${to}`);
            logError('GameRepository.findByPage error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to get games page from database');
        }
    }

    async findByPageIncludingDeleted(from: number, to: number): Promise<{ games: GameAggregate[], totalCount: number }> {
        const startTime = performance.now();
        try {
            const limit = to - from + 1;
            const offset = from;

            // Get total count for pagination (including deleted)
            const totalCount = await this.repo.count();
            
            // Get paginated results (including deleted)
            const games = await this.repo.find({
                order: { updateDate: 'DESC' },
                take: limit,
                skip: offset
            });

            const endTime = performance.now();
            logDatabase('Game page query (including deleted) completed', `executionTime: ${Math.round(endTime - startTime)}ms, found: ${games.length}, total: ${totalCount}, from: ${from}, to: ${to}`);

            return { games, totalCount };
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game page query (including deleted) failed', `executionTime: ${Math.round(endTime - startTime)}ms, from: ${from}, to: ${to}`);
            logError('GameRepository.findByPageIncludingDeleted error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to get games page (including deleted) from database');
        }
    }

    async findById(id: string): Promise<GameAggregate | null> {
        const startTime = performance.now();
        try {
            const result = await this.repo.findOne({
                where: { id, state: Not(GameState.CANCELLED) }
            });
            const endTime = performance.now();
            logDatabase('Game findById completed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}, found: ${!!result}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game findById failed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}`);
            logError('GameRepository.findById error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to find game by id in database');
        }
    }

    async findByIdIncludingDeleted(id: string): Promise<GameAggregate | null> {
        const startTime = performance.now();
        try {
            const result = await this.repo.findOne({
                where: { id }
            });
            const endTime = performance.now();
            logDatabase('Game findByIdIncludingDeleted completed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}, found: ${!!result}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game findByIdIncludingDeleted failed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}`);
            logError('GameRepository.findByIdIncludingDeleted error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to find game by id (including deleted) in database');
        }
    }

    async findByGameCode(gamecode: string): Promise<GameAggregate | null> {
        const startTime = performance.now();
        try {
            const result = await this.repo.findOne({
                where: { gamecode, state: Not(GameState.CANCELLED) }
            });
            const endTime = performance.now();
            logDatabase('Game findByGameCode completed', `executionTime: ${Math.round(endTime - startTime)}ms, gameCode: ${gamecode}, found: ${!!result}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game findByGameCode failed', `executionTime: ${Math.round(endTime - startTime)}ms, gameCode: ${gamecode}`);
            logError('GameRepository.findByGameCode error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to find game by game code in database');
        }
    }

    async search(query: string, limit?: number, offset?: number): Promise<{ games: GameAggregate[], totalCount: number }> {
        const startTime = performance.now();
        try {
            const queryBuilder = this.repo.createQueryBuilder('game')
                .where('game.state != :cancelledState', { cancelledState: GameState.CANCELLED })
                .andWhere('(game.gamecode ILIKE :query)', { query: `%${query}%` });

            // Get total count
            const totalCount = await queryBuilder.getCount();

            // Apply pagination if provided
            if (limit !== undefined) {
                queryBuilder.take(limit);
            }
            if (offset !== undefined) {
                queryBuilder.skip(offset);
            }

            const games = await queryBuilder.orderBy('game.updateDate', 'DESC').getMany();

            const endTime = performance.now();
            logDatabase('Game search completed', `executionTime: ${Math.round(endTime - startTime)}ms, query: ${query}, found: ${games.length}, total: ${totalCount}`);

            return { games, totalCount };
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game search failed', `executionTime: ${Math.round(endTime - startTime)}ms, query: ${query}`);
            logError('GameRepository.search error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to search games in database');
        }
    }

    async searchIncludingDeleted(query: string, limit?: number, offset?: number): Promise<{ games: GameAggregate[], totalCount: number }> {
        const startTime = performance.now();
        try {
            const queryBuilder = this.repo.createQueryBuilder('game')
                .where('(game.gamecode ILIKE :query)', { query: `%${query}%` });

            // Get total count
            const totalCount = await queryBuilder.getCount();

            // Apply pagination if provided
            if (limit !== undefined) {
                queryBuilder.take(limit);
            }
            if (offset !== undefined) {
                queryBuilder.skip(offset);
            }

            const games = await queryBuilder.orderBy('game.updateDate', 'DESC').getMany();

            const endTime = performance.now();
            logDatabase('Game search (including deleted) completed', `executionTime: ${Math.round(endTime - startTime)}ms, query: ${query}, found: ${games.length}, total: ${totalCount}`);

            return { games, totalCount };
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game search (including deleted) failed', `executionTime: ${Math.round(endTime - startTime)}ms, query: ${query}`);
            logError('GameRepository.searchIncludingDeleted error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to search games (including deleted) in database');
        }
    }

    async update(id: string, update: Partial<GameAggregate>): Promise<GameAggregate | null> {
        const startTime = performance.now();
        try {
            await this.repo.update(id, update);
            const result = await this.findById(id);
            const endTime = performance.now();
            logDatabase('Game update completed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}, updated: ${!!result}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game update failed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}`);
            logError('GameRepository.update error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to update game in database');
        }
    }

    async delete(id: string): Promise<any> {
        const startTime = performance.now();
        try {
            const result = await this.repo.delete(id);
            const endTime = performance.now();
            logDatabase('Game delete completed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}, affected: ${result.affected}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game delete failed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}`);
            logError('GameRepository.delete error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to delete game from database');
        }
    }

    async softDelete(id: string): Promise<GameAggregate | null> {
        const startTime = performance.now();
        try {
            await this.repo.update(id, { state: GameState.CANCELLED });
            const result = await this.findByIdIncludingDeleted(id);
            const endTime = performance.now();
            logDatabase('Game soft delete completed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}, updated: ${!!result}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game soft delete failed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${id}`);
            logError('GameRepository.softDelete error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to soft delete game in database');
        }
    }

    // Game-specific methods
    async findActiveGames(): Promise<GameAggregate[]> {
        const startTime = performance.now();
        try {
            const games = await this.repo.find({
                where: { state: GameState.ACTIVE },
                order: { updateDate: 'DESC' }
            });
            const endTime = performance.now();
            logDatabase('Active games query completed', `executionTime: ${Math.round(endTime - startTime)}ms, found: ${games.length}`);
            return games;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Active games query failed', `executionTime: ${Math.round(endTime - startTime)}ms`);
            logError('GameRepository.findActiveGames error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to find active games in database');
        }
    }

    async findGamesByPlayer(playerId: string): Promise<GameAggregate[]> {
        const startTime = performance.now();
        try {
            const queryBuilder = this.repo.createQueryBuilder('game')
                .where('game.state != :cancelledState', { cancelledState: GameState.CANCELLED })
                .andWhere('JSON_CONTAINS(game.players, :playerId)', { playerId: `"${playerId}"` })
                .orderBy('game.updateDate', 'DESC');

            const games = await queryBuilder.getMany();
            const endTime = performance.now();
            logDatabase('Games by player query completed', `executionTime: ${Math.round(endTime - startTime)}ms, playerId: ${playerId}, found: ${games.length}`);
            return games;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Games by player query failed', `executionTime: ${Math.round(endTime - startTime)}ms, playerId: ${playerId}`);
            logError('GameRepository.findGamesByPlayer error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to find games by player in database');
        }
    }

    async findWaitingGames(): Promise<GameAggregate[]> {
        const startTime = performance.now();
        try {
            const games = await this.repo.find({
                where: { state: GameState.WAITING },
                order: { createdate: 'ASC' }
            });
            const endTime = performance.now();
            logDatabase('Waiting games query completed', `executionTime: ${Math.round(endTime - startTime)}ms, found: ${games.length}`);
            return games;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Waiting games query failed', `executionTime: ${Math.round(endTime - startTime)}ms`);
            logError('GameRepository.findWaitingGames error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to find waiting games in database');
        }
    }

    async findFinishedGames(from?: number, to?: number): Promise<{ games: GameAggregate[], totalCount: number }> {
        const startTime = performance.now();
        try {
            const queryBuilder = this.repo.createQueryBuilder('game')
                .where('game.state = :finishedState', { finishedState: GameState.FINISHED })
                .orderBy('game.enddate', 'DESC');

            // Get total count
            const totalCount = await queryBuilder.getCount();

            // Apply pagination if provided
            if (from !== undefined && to !== undefined) {
                const limit = to - from + 1;
                const offset = from;
                queryBuilder.take(limit).skip(offset);
            }

            const games = await queryBuilder.getMany();
            const endTime = performance.now();
            logDatabase('Finished games query completed', `executionTime: ${Math.round(endTime - startTime)}ms, found: ${games.length}, total: ${totalCount}`);
            return { games, totalCount };
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Finished games query failed', `executionTime: ${Math.round(endTime - startTime)}ms`);
            logError('GameRepository.findFinishedGames error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to find finished games in database');
        }
    }

    async addPlayerToGame(gameId: string, playerId: string): Promise<GameAggregate | null> {
        const startTime = performance.now();
        try {
            const game = await this.findById(gameId);
            if (!game) {
                return null;
            }

            // Check if player is already in the game
            if (game.players.includes(playerId)) {
                return game;
            }

            // Check if game is full
            if (game.players.length >= game.maxplayers) {
                throw new Error('Game is full');
            }

            const updatedPlayers = [...game.players, playerId];
            const result = await this.update(gameId, { players: updatedPlayers });
            
            const endTime = performance.now();
            logDatabase('Player added to game', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${gameId}, playerId: ${playerId}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Add player to game failed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${gameId}, playerId: ${playerId}`);
            logError('GameRepository.addPlayerToGame error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to add player to game in database');
        }
    }

    async removePlayerFromGame(gameId: string, playerId: string): Promise<GameAggregate | null> {
        const startTime = performance.now();
        try {
            const game = await this.findById(gameId);
            if (!game) {
                return null;
            }

            const updatedPlayers = game.players.filter(id => id !== playerId);
            const result = await this.update(gameId, { players: updatedPlayers });
            
            const endTime = performance.now();
            logDatabase('Player removed from game', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${gameId}, playerId: ${playerId}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Remove player from game failed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${gameId}, playerId: ${playerId}`);
            logError('GameRepository.removePlayerFromGame error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to remove player from game in database');
        }
    }

    async updateGameState(gameId: string, started: boolean, finished?: boolean, winner?: string): Promise<GameAggregate | null> {
        const startTime = performance.now();
        try {
            const updateData: Partial<GameAggregate> = { started };
            
            if (started && !finished) {
                updateData.state = GameState.ACTIVE;
                updateData.startdate = new Date();
            }
            
            if (finished) {
                updateData.finished = true;
                updateData.state = GameState.FINISHED;
                updateData.enddate = new Date();
                if (winner) {
                    updateData.winner = winner;
                }
            }

            const result = await this.update(gameId, updateData);
            
            const endTime = performance.now();
            logDatabase('Game state updated', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${gameId}, started: ${started}, finished: ${finished}, winner: ${winner}`);
            return result;
        } catch (error) {
            const endTime = performance.now();
            logDatabase('Game state update failed', `executionTime: ${Math.round(endTime - startTime)}ms, gameId: ${gameId}`);
            logError('GameRepository.updateGameState error', error instanceof Error ? error : new Error(String(error)));
            throw new Error('Failed to update game state in database');
        }
    }
}