package scoresaber

import (
	"compress/gzip"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
)

// fetchPlayerData 函数请求 Scoresaber API，并解析完整的玩家信息
func FetchPlayerData(ssID string) (*PlayerData, error) {
	url := fmt.Sprintf("https://scoresaber.com/api/player/%s/full", ssID)

	// 创建请求
	req, err := http.NewRequest("GET", url, nil)
	if err != nil {
		return nil, err
	}

	// 设置请求头
	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0")
	req.Header.Set("Accept", "application/json, text/plain, */*")
	req.Header.Set("Accept-Language", "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2")
	req.Header.Set("Accept-Encoding", "gzip")
	req.Header.Set("DNT", "1")
	req.Header.Set("Connection", "keep-alive")
	req.Header.Set("Referer", fmt.Sprintf("https://scoresaber.com/u/%s", ssID))
	req.Header.Set("Sec-Fetch-Dest", "empty")
	req.Header.Set("Sec-Fetch-Mode", "cors")
	req.Header.Set("Sec-Fetch-Site", "same-origin")
	req.Header.Set("Sec-GPC", "1")
	req.Header.Set("Pragma", "no-cache")
	req.Header.Set("Cache-Control", "no-cache")
	req.Header.Set("TE", "trailers")

	// 发送请求，失败则重试至多3次
	client := &http.Client{}
	resp, err := client.Do(req)
	for i := 0; i < 3 && err != nil; i++ {
		resp, err = client.Do(req)
	}
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()

	// 处理压缩响应
	var reader io.Reader
	if resp.Header.Get("Content-Encoding") == "gzip" {
		reader, err = gzip.NewReader(resp.Body)
		if err != nil {
			return nil, err
		}
		defer reader.(*gzip.Reader).Close()
	} else {
		reader = resp.Body
	}

	// 解析响应体
	var playerData PlayerData
	err = json.NewDecoder(reader).Decode(&playerData)
	if err != nil {
		// log.Printf("got body %v", reader.)
		return nil, err
	}

	return &playerData, nil
}

// {
// 	"players": [
// 	  {
// 		"id": "76561199001767132",
// 		"name": "ViSi",
// 		"profilePicture": "https://cdn.scoresaber.com/avatars/76561199001767132.jpg",
// 		"bio": "<p>a girl using index cons</p>\n<p>7/1/2022 i beat ov sacrament</p>\n<p>7/28/2022 i hit 1k hours, i suppose im the worst 1k hours player atm</p>\n<p><a href=\"https://space.bilibili.com/36819692?spm_id_from=333.1007.0.0\">BiliBili</a></p>\n<p><a href=\"https://www.youtube.com/channel/UCS8Ljbehybj7G2RHV7S-kKA\">YouTube</a></p>\n<p><a href=\"https://www.twitch.tv/visi_bs\">Twitch</a></p>\n<p><a href=\"https://twitter.com/VioletSilence1\">Twitter</a></p>",
// 		"country": "CN",
// 		"pp": 15113.41,
// 		"rank": 120,
// 		"countryRank": 1,
// 		"role": null,
// 		"badges": null,
// 		"histories": "103,103,104,104,104,104,104,105,104,104,104,104,105,105,105,106,107,107,107,108,111,112,113,113,113,113,113,113,113,115,114,115,115,114,114,114,118,118,118,118,119,119,119,119,119,119,121,121,121",
// 		"permissions": 0,
// 		"banned": false,
// 		"inactive": false,
// 		"scoreStats": {
// 		  "totalScore": 4525384588,
// 		  "totalRankedScore": 1648718461,
// 		  "averageRankedAccuracy": 96.73215,
// 		  "totalPlayCount": 4001,
// 		  "rankedPlayCount": 1351,
// 		  "replaysWatched": 482
// 		},
// 		"firstSeen": "2021-04-15T06:56:45.000Z"
// 	  },
//	  ...
// 	  {
// 		"id": "76561198796873048",
// 		"name": "Jia_Yue 甩尾の嘉玥",
// 		"profilePicture": "https://cdn.scoresaber.com/avatars/76561198796873048.jpg",
// 		"bio": null,
// 		"country": "CN",
// 		"pp": 9984.614,
// 		"rank": 2127,
// 		"countryRank": 50,
// 		"role": null,
// 		"badges": null,
// 		"histories": "2202,2170,2176,2182,2184,2183,2183,2224,2196,2197,2192,2210,2206,2210,2197,2195,2190,2186,2187,2187,2190,2191,2187,2190,2186,2186,2184,2183,2178,2202,2167,2163,2163,2151,2150,2145,2164,2132,2135,2130,2126,2128,2124,2120,2122,2125,2125,2129,2125",
// 		"permissions": 0,
// 		"banned": false,
// 		"inactive": false,
// 		"scoreStats": {
// 		  "totalScore": 2377399561,
// 		  "totalRankedScore": 1304174761,
// 		  "averageRankedAccuracy": 82.02609,
// 		  "totalPlayCount": 3001,
// 		  "rankedPlayCount": 1410,
// 		  "replaysWatched": 19
// 		},
// 		"firstSeen": "2022-03-24T06:11:27.000Z"
// 	  }
// 	],
// 	"metadata": {
// 	  "total": 1927,
// 	  "page": 1,
// 	  "itemsPerPage": 50
// 	}
//   }

type LeaderboardData struct {
	Players  []PlayerData `json:"players"`
	Metadata struct {
		Total        int `json:"total"`
		Page         int `json:"page"`
		ItemsPerPage int `json:"itemsPerPage"`
	} `json:"metadata"`
}

func FetchCountryLeaderboard(country string, offset int, ssID string) (LeaderboardData, error) {
	// 根据偏移量计算页数
	if offset < 1 {
		offset = 1
	}
	url := fmt.Sprintf("https://scoresaber.com/api/players?countries=%s&page=%d", country, (offset-1)/50+1)

	// 创建请求
	req, err := http.NewRequest("GET", url, nil)
	if err != nil {
		return LeaderboardData{}, err
	}

	// 设置请求头
	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0")
	req.Header.Set("Accept", "application/json, text/plain, */*")
	req.Header.Set("Accept-Language", "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2")
	req.Header.Set("Accept-Encoding", "gzip")
	req.Header.Set("DNT", "1")
	req.Header.Set("Connection", "keep-alive")
	req.Header.Set("Referer", fmt.Sprintf("https://scoresaber.com/u/%s", ssID))
	req.Header.Set("Sec-Fetch-Dest", "empty")
	req.Header.Set("Sec-Fetch-Mode", "cors")
	req.Header.Set("Sec-Fetch-Site", "same-origin")
	req.Header.Set("Sec-GPC", "1")
	req.Header.Set("Pragma", "no-cache")
	req.Header.Set("Cache-Control", "no-cache")
	req.Header.Set("TE", "trailers")

	// 发送请求，失败则重试至多3次
	client := &http.Client{}
	resp, err := client.Do(req)
	for i := 0; i < 3 && err != nil; i++ {
		resp, err = client.Do(req)
	}
	if err != nil {
		return LeaderboardData{}, err
	}
	defer resp.Body.Close()

	// 处理压缩响应
	var reader io.Reader
	if resp.Header.Get("Content-Encoding") == "gzip" {
		reader, err = gzip.NewReader(resp.Body)
		if err != nil {
			return LeaderboardData{}, err
		}
		defer reader.(*gzip.Reader).Close()
	} else {
		reader = resp.Body
	}

	// 解析响应体
	var leaderboardData LeaderboardData
	err = json.NewDecoder(reader).Decode(&leaderboardData)
	if err != nil {
		return LeaderboardData{}, err
	}

	return leaderboardData, nil
}