package handlers

import (
	"context"
	"encoding/json"
	"fmt"
	oapi "nyanimedb/api"
	sqlc "nyanimedb/sql"
	"strconv"
)

type Server struct {
	db *sqlc.Queries
}

func NewServer(db *sqlc.Queries) Server {
	return Server{db: db}
}

func (s Server) mapTitle(ctx context.Context, title sqlc.GetTitleByIDRow) (oapi.Title, error) {

	oapi_title := oapi.Title{
		EpisodesAired: title.EpisodesAired,
		EpisodesAll:   title.EpisodesAll,
		// EpisodesLen:   &episodes_lens,
		Id: title.ID,
		// Poster:        &oapi_image,
		Rating:      title.Rating,
		RatingCount: title.RatingCount,
		// ReleaseSeason: &release_season,
		ReleaseYear: title.ReleaseYear,
		// Studio:        &oapi_studio,
		// Tags:          oapi_tag_names,
		// TitleNames:    title_names,
		// TitleStatus:   oapi_status,
		// AdditionalProperties:
	}

	title_names := make(map[string][]string, 0)
	err := json.Unmarshal(title.TitleNames, &title_names)
	if err != nil {
		return oapi.Title{}, fmt.Errorf("unmarshal TitleNames: %v", err)
	}
	oapi_title.TitleNames = title_names

	if len(title.EpisodesLen) > 0 {
		episodes_lens := make(map[string]float64, 0)
		err = json.Unmarshal(title.EpisodesLen, &episodes_lens)
		if err != nil {
			return oapi.Title{}, fmt.Errorf("unmarshal EpisodesLen: %v", err)
		}
		oapi_title.EpisodesLen = &episodes_lens
	}

	oapi_tag_names := make(oapi.Tags, 0)
	err = json.Unmarshal(title.TagNames, &oapi_tag_names)
	if err != nil {
		return oapi.Title{}, fmt.Errorf("unmarshalling title_tag: %v", err)
	}
	oapi_title.Tags = oapi_tag_names

	var oapi_studio oapi.Studio
	if title.StudioName != nil {
		oapi_studio.Name = *title.StudioName
	}
	if title.StudioID != 0 {
		oapi_studio.Id = title.StudioID
		oapi_studio.Description = title.StudioDesc
		if title.StudioIllustID != nil {
			oapi_studio.Poster = &oapi.Image{}
			oapi_studio.Poster.Id = title.StudioIllustID
			oapi_studio.Poster.ImagePath = title.StudioImagePath
			oapi_studio.Poster.StorageType = &title.StudioStorageType
		}
	}
	oapi_title.Studio = &oapi_studio

	var oapi_image oapi.Image

	if title.PosterID != nil {
		oapi_image.Id = title.PosterID
		oapi_image.ImagePath = title.TitleImagePath
		oapi_image.StorageType = &title.TitleStorageType
	}
	oapi_title.Poster = &oapi_image

	var release_season oapi.ReleaseSeason
	if title.ReleaseSeason != nil {
		release_season = oapi.ReleaseSeason(*title.ReleaseSeason)
	}
	oapi_title.ReleaseSeason = &release_season

	oapi_status, err := TitleStatus2oapi(&title.TitleStatus)
	if err != nil {
		return oapi.Title{}, fmt.Errorf("TitleStatus2oapi: %v", err)
	}
	oapi_title.TitleStatus = oapi_status

	return oapi_title, nil
}

func parseInt64(s string) (int32, error) {
	i, err := strconv.ParseInt(s, 10, 64)
	return int32(i), err
}

func TitleStatus2Sqlc(s *[]oapi.TitleStatus) ([]sqlc.TitleStatusT, error) {
	var sqlc_status []sqlc.TitleStatusT
	if s == nil {
		return nil, nil
	}
	for _, t := range *s {
		switch t {
		case oapi.TitleStatusFinished:
			sqlc_status = append(sqlc_status, sqlc.TitleStatusTFinished)
		case oapi.TitleStatusOngoing:
			sqlc_status = append(sqlc_status, sqlc.TitleStatusTOngoing)
		case oapi.TitleStatusPlanned:
			sqlc_status = append(sqlc_status, sqlc.TitleStatusTPlanned)
		default:
			return nil, fmt.Errorf("unexpected tittle status: %s", t)
		}
	}
	return sqlc_status, nil
}