package fqapi

import (
	"encoding/json"
	"fanqie/internal/common"
	"fmt"
)

var detailLogger = common.NewLogger("detail", "INFO", "")

// HandleGetDetail 处理获取书籍详情,详情数据基本不变,缓存 24 小时
func HandleGetDetail(bookID string) (string, error) {
	return withCache("detail_"+bookID, 86400, func() (string, error) {
		return fetchDetail(bookID)
	})
}

func fetchDetail(bookID string) (string, error) {
	if bookID == "" {
		return BuildErrorResponse("需要参数 book_id"), nil
	}

	// 构建URL
	reqURL := BuildURL("https://reading.snssdk.com/reading/bookapi/detail/v/", "book_id="+bookID)

	resp, err := GorgonRequest(reqURL, map[string]interface{}{
		"method": "GET",
		"headers": map[string]string{
			"User-Agent": "com.dragon.read",
		},
	})

	if err != nil {
		detailLogger.Error(fmt.Sprintf("获取详情请求失败: %v", err))
		return BuildErrorResponse("获取详情请求失败"), err
	}

	respJSON, err := resp.JSON()
	if err != nil {
		detailLogger.Error(fmt.Sprintf("解析响应失败: %v", err))
		return BuildErrorResponse("解析响应失败"), err
	}

	if code, ok := respJSON["code"].(float64); ok && code == 0 {
		if data, ok := respJSON["data"].(map[string]interface{}); ok {
			// 删除content字段
			delete(data, "content")
			// 封面链接永久化（原链接带临时参数会过期）
			if thumb, ok := data["thumb_url"].(string); ok && thumb != "" {
				data["thumb_url"] = NormalizeNovelImageURL(thumb)
			}
		}

		// 重新序列化（解包 JSON 字符串字段）
		resultBytes, err := json.Marshal(UnwrapJSONStrings(respJSON))
		if err != nil {
			return BuildErrorResponse("序列化失败"), err
		}

		return string(resultBytes), nil
	}

	return BuildErrorResponse("获取失败"), nil
}