package playletser

import (
	"fmt"
	"net/url"
	"strconv"
	"videoweb/app/service/upstream"
	"videoweb/pub/common/log"

	"github.com/gin-gonic/gin"
)

const (
	todayUpdatePath        = "/api/app/playlet/today-update"
	defaultTodayUpdateSize = 40
)

// TodayUpdateQuery 今日更新分页参数。
type TodayUpdateQuery struct {
	PageNum  int
	PageSize int
}

// Normalize 校正分页默认值。
func (q *TodayUpdateQuery) Normalize() {
	if q.PageNum <= 0 {
		q.PageNum = 1
	}
	if q.PageSize <= 0 {
		q.PageSize = defaultTodayUpdateSize
	}
	if q.PageSize > 50 {
		q.PageSize = 50
	}
}

// FetchTodayUpdate 分页查询今日更新短剧。
func FetchTodayUpdate(c *gin.Context, q TodayUpdateQuery) (*PlayletVideoResp, error) {
	q.Normalize()
	params := url.Values{}
	params.Set("pageNum", strconv.Itoa(q.PageNum))
	params.Set("pageSize", strconv.Itoa(q.PageSize))

	var env APIEnvelope[PlayletVideoResp]
	if err := upstream.GetPublicJSON(c, todayUpdatePath+"?"+params.Encode(), &env); err != nil {
		return nil, err
	}
	if env.Code != 200 {
		return nil, fmt.Errorf("playlet today-update code=%d msg=%s", env.Code, env.Msg)
	}
	return &env.Data, nil
}

// FetchTodayUpdateOrEmpty 失败时返回空列表。
func FetchTodayUpdateOrEmpty(c *gin.Context, q TodayUpdateQuery) *PlayletVideoResp {
	data, err := FetchTodayUpdate(c, q)
	if err != nil {
		log.Error("fetch playlet today-update failed", log.E(err))
		return &PlayletVideoResp{PageNum: q.PageNum, PageSize: q.PageSize}
	}
	if data == nil {
		return &PlayletVideoResp{PageNum: q.PageNum, PageSize: q.PageSize}
	}
	data.SeoInfo.Normalize()
	return data
}