package types

import (
	"context"
	"errors"
	"git.aiterp.net/rpdata/api/services"

	"git.aiterp.net/rpdata/api/internal/loader"
	"git.aiterp.net/rpdata/api/models"
	"git.aiterp.net/rpdata/api/models/posts"
)

type logResolver struct {
	characters *services.CharacterService
}

func (r *logResolver) Channel(ctx context.Context, log *models.Log) (*models.Channel, error) {
	loader := loader.FromContext(ctx)
	if loader == nil {
		return nil, errors.New("no loader")
	}

	return loader.Channel("name", log.ChannelName)
}

func (r *logResolver) Characters(ctx context.Context, log *models.Log) ([]*models.Character, error) {
	if len(log.CharacterIDs) == 0 {
		return []*models.Character{}, nil
	}

	return r.characters.List(ctx, models.CharacterFilter{
		IDs: log.CharacterIDs,
	})
}

func (r *logResolver) Posts(ctx context.Context, log *models.Log, kinds []string) ([]*models.Post, error) {
	posts, err := posts.List(&posts.Filter{LogID: &log.ShortID, Kind: kinds, Limit: 0})
	if err != nil {
		return nil, err
	}

	posts2 := make([]*models.Post, len(posts))
	for i := range posts {
		posts2[i] = &posts[i]
	}

	return posts2, nil
}

// LogResolver is a resolver
func LogResolver(s *services.Bundle) *logResolver {
	return &logResolver{characters: s.Characters}
}