package app

import (
	"context"

	"evening_detective_server/internal/modules/roles"
	"evening_detective_server/internal/services/game_review_service"
	"evening_detective_server/proto"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
	"google.golang.org/protobuf/types/known/timestamppb"
)

func mapGameReview(r *game_review_service.Review) *proto.GameReview {
	return &proto.GameReview{
		ID:        int32(r.ID),
		GameID:    int32(r.GameID),
		TeamID:    int32(r.TeamID),
		TeamName:  r.TeamName,
		Rating:    r.Rating,
		Text:      r.Text,
		Status:    r.Status,
		CreatedAt: timestamppb.New(r.CreatedAt),
		GameName:  r.GameName,
	}
}

func mapGameReviews(reviews []*game_review_service.Review) []*proto.GameReview {
	result := make([]*proto.GameReview, 0, len(reviews))
	for _, review := range reviews {
		result = append(result, mapGameReview(review))
	}
	return result
}

func (s *server) CreateGameReview(ctx context.Context, req *proto.CreateGameReviewReq) (*proto.CreateGameReviewRsp, error) {
	review, err := s.reviewService.Create(ctx, int(req.GameID), int(req.TeamID), req.Password, req.Rating, req.Text)
	if err != nil {
		return nil, reviewErrorStatus(err, "не удалось создать отзыв")
	}
	return &proto.CreateGameReviewRsp{Review: mapGameReview(review)}, nil
}

func (s *server) GetGameReviews(ctx context.Context, req *proto.GetGameReviewsReq) (*proto.GetGameReviewsRsp, error) {
	reviews, average, count, err := s.reviewService.List(ctx, int(req.GameID), false)
	if err != nil {
		return nil, reviewErrorStatus(err, "не удалось получить отзывы игры")
	}
	return &proto.GetGameReviewsRsp{AverageRating: average, ReviewsCount: count, Reviews: mapGameReviews(reviews)}, nil
}

func (s *server) GetScenarioReviews(ctx context.Context, req *proto.GetScenarioReviewsReq) (*proto.GetGameReviewsRsp, error) {
	reviews, average, count, err := s.reviewService.ListByScenario(ctx, int(req.ScenarioID))
	if err != nil {
		return nil, reviewErrorStatus(err, "не удалось получить отзывы сценария")
	}
	return &proto.GetGameReviewsRsp{AverageRating: average, ReviewsCount: count, Reviews: mapGameReviews(reviews)}, nil
}

func (s *server) GetGameReviewsForModeration(ctx context.Context, req *proto.GetGameReviewsReq) (*proto.GetGameReviewsRsp, error) {
	claims, claimsErr := claimsFromContext(ctx)
	if claimsErr != nil {
		return nil, claimsErr
	}
	if !roles.HasRole(claims, roles.Admin) {
		return nil, status.Error(codes.PermissionDenied, "permission denied")
	}
	reviews, average, count, err := s.reviewService.List(ctx, int(req.GameID), true)
	if err != nil {
		return nil, reviewErrorStatus(err, "не удалось получить отзывы для модерации")
	}
	return &proto.GetGameReviewsRsp{AverageRating: average, ReviewsCount: count, Reviews: mapGameReviews(reviews)}, nil
}

func (s *server) GetReviewsForModeration(ctx context.Context, req *proto.GetReviewsForModerationReq) (*proto.GetGameReviewsRsp, error) {
	claims, claimsErr := claimsFromContext(ctx)
	if claimsErr != nil {
		return nil, claimsErr
	}
	if !roles.HasRole(claims, roles.Admin) {
		return nil, status.Error(codes.PermissionDenied, "permission denied")
	}
	reviews, err := s.reviewService.ListForModeration(ctx)
	if err != nil {
		return nil, reviewErrorStatus(err, "не удалось получить отзывы для модерации")
	}
	return &proto.GetGameReviewsRsp{Reviews: mapGameReviews(reviews)}, nil
}

func (s *server) ModerateGameReview(ctx context.Context, req *proto.ModerateGameReviewReq) (*proto.ModerateGameReviewRsp, error) {
	claims, claimsErr := claimsFromContext(ctx)
	if claimsErr != nil {
		return nil, claimsErr
	}
	if !roles.HasRole(claims, roles.Admin) {
		return nil, status.Error(codes.PermissionDenied, "permission denied")
	}
	review, err := s.reviewService.Moderate(ctx, int(req.ID), req.Status)
	if err != nil {
		return nil, reviewErrorStatus(err, "не удалось изменить статус отзыва")
	}
	return &proto.ModerateGameReviewRsp{Review: mapGameReview(review)}, nil
}