package api

import (
	"context"

	"github.com/stashapp/stash/internal/api/loaders"
	"github.com/stashapp/stash/internal/api/urlbuilders"
	"github.com/stashapp/stash/pkg/models"
)

func (r *movieResolver) Date(ctx context.Context, obj *models.Movie) (*string, error) {
	if obj.Date != nil {
		result := obj.Date.String()
		return &result, nil
	}
	return nil, nil
}

func (r *movieResolver) Rating(ctx context.Context, obj *models.Movie) (*int, error) {
	if obj.Rating != nil {
		rating := models.Rating100To5(*obj.Rating)
		return &rating, nil
	}
	return nil, nil
}

func (r *movieResolver) Rating100(ctx context.Context, obj *models.Movie) (*int, error) {
	return obj.Rating, nil
}

func (r *movieResolver) Studio(ctx context.Context, obj *models.Movie) (ret *models.Studio, err error) {
	if obj.StudioID == nil {
		return nil, nil
	}

	return loaders.From(ctx).StudioByID.Load(*obj.StudioID)
}

func (r *movieResolver) FrontImagePath(ctx context.Context, obj *models.Movie) (*string, error) {
	var hasImage bool
	if err := r.withReadTxn(ctx, func(ctx context.Context) error {
		var err error
		hasImage, err = r.repository.Movie.HasFrontImage(ctx, obj.ID)
		return err
	}); err != nil {
		return nil, err
	}

	baseURL, _ := ctx.Value(BaseURLCtxKey).(string)
	imagePath := urlbuilders.NewMovieURLBuilder(baseURL, obj).GetMovieFrontImageURL(hasImage)
	return &imagePath, nil
}

func (r *movieResolver) BackImagePath(ctx context.Context, obj *models.Movie) (*string, error) {
	var hasImage bool
	if err := r.withReadTxn(ctx, func(ctx context.Context) error {
		var err error
		hasImage, err = r.repository.Movie.HasBackImage(ctx, obj.ID)
		return err
	}); err != nil {
		return nil, err
	}

	// don't return anything if there is no back image
	if !hasImage {
		return nil, nil
	}

	baseURL, _ := ctx.Value(BaseURLCtxKey).(string)
	imagePath := urlbuilders.NewMovieURLBuilder(baseURL, obj).GetMovieBackImageURL()
	return &imagePath, nil
}

func (r *movieResolver) SceneCount(ctx context.Context, obj *models.Movie) (ret *int, err error) {
	var res int
	if err := r.withReadTxn(ctx, func(ctx context.Context) error {
		res, err = r.repository.Scene.CountByMovieID(ctx, obj.ID)
		return err
	}); err != nil {
		return nil, err
	}

	return &res, err
}

func (r *movieResolver) Scenes(ctx context.Context, obj *models.Movie) (ret []*models.Scene, err error) {
	if err := r.withReadTxn(ctx, func(ctx context.Context) error {
		var err error
		ret, err = r.repository.Scene.FindByMovieID(ctx, obj.ID)
		return err
	}); err != nil {
		return nil, err
	}

	return ret, nil
}