package beatleader

import (
	"database/sql"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"log"
	"net/http"
	"strconv"
	"time"

	"git.lxtend.com/qqbot/sqlite3"
	_ "github.com/mattn/go-sqlite3"
)

func init() {
	createScoreTableSQL := `CREATE TABLE IF NOT EXISTS blData (
		id TEXT,
		name TEXT,
		country TEXT,
		pp REAL,
		rank INTEGER,
		country_rank INTEGER,
		total_score INTEGER,
		total_ranked_score INTEGER,
		average_ranked_accuracy REAL,
		total_play_count INTEGER,
		ranked_play_count INTEGER,
		replays_watched INTEGER,
		generated_time TEXT
	);`

	createRecordTableSQL := `CREATE TABLE IF NOT EXISTS blRecordData (
		id INTEGER PRIMARY KEY AUTOINCREMENT,
		score_id INT,
		bl_id TEXT,
		name TEXT,
		country TEXT,
		song_name VARCHAR(255),
		song_sub_name VARCHAR(255),
		song_author_name VARCHAR(255),
		song_hash VARCHAR(64),
		cover_image TEXT,
		difficulty_raw VARCHAR(100),
		pp REAL,
		stars REAL,
		weight REAL,
		modifiers VARCHAR(255),
		multiplier REAL,
		bad_cuts INT,
		missed_notes INT,
		max_combo INT,
		score INT,
		rank INT,
		max_score INT,
		full_combo BOOLEAN,
		device_hmd VARCHAR(100),
		device_controller_left VARCHAR(100),
		device_controller_right VARCHAR(100),
		generated_time TEXT
	);`

	sqlite3.TryCreateTable(createScoreTableSQL)
	sqlite3.TryCreateTable(createRecordTableSQL)
}

var BLQuery = &blQuery{}

type blQuery struct {
}

func (bl *blQuery) BindBL(qqId string, blId string) (reply string) {
	tx, err := sqlite3.GetTran()
	if err != nil {
		log.Print(err)
	}
	defer tx.Rollback()
	// blId为数字
	if _, isNum := strconv.Atoi(blId); isNum != nil {
		return "blId格式错误,应当为一串数字(大部分情况下是你的steamID)"
	}
	data, err := FetchPlayerData(blId)
	if data == nil {
		if err != nil {
			return "未找到玩家,请检查ID后重试:" + err.Error()
		}
		return "未找到玩家,请检查ID后重试"
	}
	//去重
	if rows, err := tx.Query("SELECT * FROM ssBind WHERE qqid = ?", qqId); err == nil {
		if rows.Next() {
			return "您已绑定过bl账号,请先输入\"解绑bl\"解绑"
		}
		rows.Close()
	}
	if rows, err := tx.Query("SELECT * FROM ssBind WHERE ssid = ?", blId); err == nil {
		if rows.Next() {
			return "该bl账号已绑定至其他用户"
		}
		rows.Close()
	}
	_, err = tx.Exec("INSERT INTO ssBind(qqid, ssid) VALUES(?, ?)", qqId, blId)
	if err != nil {
		return "绑定失败,请稍后重试:" + err.Error()
	}
	err = tx.Commit()
	if err != nil {
		return "无法提交事务"
	}
	return "和用户名为 " + data.Name + " 的用户绑定成功，输入\"查bl\"查看个人数据"
}

func (bl *blQuery) UnbindBL(qqId string) (reply string) {
	tx, err := sqlite3.GetTran()
	if err != nil {
		log.Print(err)
	}
	defer tx.Rollback()
	//是否已绑定
	if rows, err := tx.Query("SELECT * FROM ssBind WHERE qqid = ?", qqId); err == nil {
		if !rows.Next() {
			return "您未绑定bl账号，输入\"绑定bl [blId]\"绑定"
		}
		rows.Close()
	}
	_, err = tx.Exec("DELETE FROM ssBind WHERE qqid = ?", qqId)
	if err != nil {
		return "解绑失败"
	}
	err = tx.Commit()
	if err != nil {
		return "无法提交事务"
	}
	return "解绑成功，重新绑定请输入\"绑定bl [blId]\""
}

func (bl *blQuery) GetScore(qqId string) (reply string, err error) {
	db := sqlite3.GetDB() // 假设 sqlite3.GetDB() 返回 *sqlx.DB
	tx, err := db.Beginx()
	if err != nil {
		log.Print(err)
		return "数据库连接失败，请稍后重试", err
	}
	defer tx.Rollback()

	blId, err := getBLID(qqId)
	if err != nil {
		return err.Error(), nil
	}

	// 查询玩家数据
	data, err := FetchPlayerData(blId)
	if data == nil && err == nil {
		return "查询出错，服务器返回了空数据", errors.New("查询出错，服务器返回了空数据")
	}
	if err != nil {
		log.Print(err)
		return "查询出错，服务器返回了空数据" + err.Error(), err
	}

	// 构建 PlayerDataLite 结构体
	dataLite := PlayerDataLite{
		ID:                    data.ID,
		Name:                  data.Name,
		Country:               data.Country,
		PP:                    data.AccPp + data.PassPp + data.TechPp,
		Rank:                  data.Rank,
		CountryRank:           data.CountryRank,
		TotalScore:            data.ScoreStats.TotalScore,
		TotalRankedScore:      data.ScoreStats.TotalRankedScore,
		AverageRankedAccuracy: data.ScoreStats.AverageRankedAccuracy,
		TotalPlayCount:        data.ScoreStats.TotalPlayCount,
		RankedPlayCount:       data.ScoreStats.RankedPlayCount,
		ReplaysWatched:        data.ScoreStats.WatchedReplays,
		GeneratedTime:         time.Now().Format("2006-01-02 15:04:05.999999999-07:00"),
	}

	// 查询最近的玩家数据
	var lastDataLite PlayerDataLite
	err = tx.Get(&lastDataLite, "SELECT * FROM blData WHERE id = ? ORDER BY generated_time DESC LIMIT 1", dataLite.ID)
	if err != nil && err != sql.ErrNoRows {
		log.Print(err)
		return "查询历史数据时出错", err
	}

	// 如果有新的数据，则插入
	if lastDataLite.IsDiffFrom(dataLite) {
		_, err = tx.NamedExec(`INSERT INTO blData (id, name, country, pp, rank, country_rank, total_score, 
			total_ranked_score, average_ranked_accuracy, total_play_count, ranked_play_count, replays_watched, generated_time)
			VALUES (:id, :name, :country, :pp, :rank, :country_rank, :total_score, 
			:total_ranked_score, :average_ranked_accuracy, :total_play_count, :ranked_play_count, :replays_watched, :generated_time)`, dataLite)
		if err != nil {
			log.Print(err)
			return "插入新数据时出错", err
		}

		// 提交事务
		err = tx.Commit()
		if err != nil {
			log.Print(err)
			return "SQL事务提交失败，请重试", err
		}

		// 返回差异信息
		return data.LastDiffToString(lastDataLite), nil
	}

	// 如果没有新数据，直接提交事务
	err = tx.Commit()
	if err != nil {
		log.Print(err)
		return "SQL事务提交失败，请重试", err
	}

	// 返回当前数据的字符串表示
	return data.ToString(), nil
}

func (bl *blQuery) SaveRecord(scoreData ScoreData) {
	db := sqlite3.GetDB() // 假设 sqlite3.GetDB() 返回 *sqlx.DB
	tx, err := db.Beginx()
	if err != nil {
		log.Print(err)
		return
	}
	defer tx.Rollback()

	// 创建 RecordDataLite 结构体实例
	dataLite := RecordDataLite{
		ScoreID:               scoreData.ID,
		BlID:                  scoreData.Player.ID,
		Name:                  scoreData.Player.Name,
		Country:               scoreData.Player.Country,
		SongName:              scoreData.Leaderboard.Song.Name,
		SongSubName:           scoreData.Leaderboard.Song.SubName,
		SongAuthorName:        scoreData.Leaderboard.Song.Author,
		SongHash:              scoreData.Leaderboard.Song.Hash,
		CoverImage:            scoreData.Leaderboard.Song.CoverImage,
		DifficultyRaw:         scoreData.Leaderboard.Difficulty.DifficultyName,
		Stars:                 0,
		PP:                    scoreData.Pp,
		Weight:                scoreData.Weight,
		Modifiers:             scoreData.Modifiers,
		Multiplier:            float64(scoreData.ModifiedScore) / float64(scoreData.BaseScore),
		BadCuts:               scoreData.BadCuts,
		Score:                 scoreData.ModifiedScore,
		Rank:                  scoreData.Rank,
		MaxScore:              int(float64(scoreData.ModifiedScore) / scoreData.Accuracy),
		MissedNotes:           scoreData.MissedNotes,
		MaxCombo:              scoreData.MaxCombo,
		FullCombo:             scoreData.FullCombo,
		DeviceHmd:             GetHMDStr(scoreData.HMD),
		DeviceControllerLeft:  GetControllerStr(scoreData.Controller),
		DeviceControllerRight: GetControllerStr(scoreData.Controller),
		GeneratedTime:         time.Now().Format("2006-01-02 15:04:05.999999999-07:00"),
	}
	if scoreData.Leaderboard.Difficulty.Stars != nil {
		dataLite.Stars = *scoreData.Leaderboard.Difficulty.Stars
	}

	// 使用 NamedExec 插入数据
	_, err = tx.NamedExec(`INSERT INTO blRecordData 
		(score_id, bl_id, name, country, song_name, song_sub_name, song_author_name, 
		song_hash, cover_image, difficulty_raw, pp, stars, weight, modifiers, 
		multiplier, bad_cuts, missed_notes, max_combo, score,rank, max_score, 
		full_combo, device_hmd, device_controller_left, device_controller_right, 
		generated_time) 
		VALUES (:score_id, :bl_id, :name, :country, :song_name, :song_sub_name, 
		:song_author_name, :song_hash, :cover_image, :difficulty_raw, :pp, :stars, 
		:weight, :modifiers, :multiplier, :bad_cuts, :missed_notes, :max_combo, 
		:score,:rank, :max_score, :full_combo, :device_hmd, :device_controller_left, 
		:device_controller_right, :generated_time)`, dataLite)
	if err != nil {
		log.Print(err)
		return
	}

	// 提交事务
	err = tx.Commit()
	if err != nil {
		log.Print(err)
	}
}

func (bl *blQuery) GetRecentScores(count int, qqId string) ([]RecordDataLite, error) {
	db := sqlite3.GetDB() // 假设 sqlite3.GetDB() 返回 *sqlx.DB
	tx, err := db.Beginx()
	if err != nil {
		log.Print(err)
		return nil, errors.New("数据库连接失败，请稍后重试")
	}
	defer tx.Rollback()

	// 查询绑定的 blId
	blId, err := getBLID(qqId)
	if err != nil {
		return nil, err
	}

	// // 查询记录
	// var records []RecordDataLite
	// err = tx.Select(&records, "SELECT * FROM blRecordData WHERE bl_id = ? ORDER BY generated_time DESC LIMIT ?", blId, count)
	// if err != nil {
	// 	if err == sql.ErrNoRows {
	// 		return nil, errors.New("未查询到数据")
	// 	}
	// 	log.Println("查询数据出错:", err)
	// 	return nil, errors.New("查询记录失败")
	// }

	// // 提交事务
	// err = tx.Commit()
	// if err != nil {
	// 	log.Print(err)
	// 	return nil, errors.New("提交事务失败")
	// }

	// return records, nil

	//从线上获取
	historyUrl := "https://api.beatleader.xyz/player/%s/scores"
	fullUrl := fmt.Sprintf(historyUrl, blId)
	resp, err := http.Get(fullUrl)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	var scores []ScoreData
	err = json.Unmarshal(body, &scores)
	if err != nil {
		return nil, err
	}
	records := make([]RecordDataLite, 0)
	for _, score := range scores {
		records = append(records, RecordDataLite{
			ScoreID:               score.ID,
			BlID:                  score.Player.ID,
			Name:                  score.Player.Name,
			Country:               score.Player.Country,
			SongName:              score.Leaderboard.Song.Name,
			SongSubName:           score.Leaderboard.Song.SubName,
			SongAuthorName:        score.Leaderboard.Song.Author,
			SongHash:              score.Leaderboard.Song.Hash,
			SongId:                score.Leaderboard.Song.ID,
			CoverImage:            score.Leaderboard.Song.CoverImage,
			DifficultyRaw:         score.Leaderboard.Difficulty.DifficultyName,
			PP:                    score.Pp,
			Stars:                 *score.Leaderboard.Difficulty.Stars,
			Weight:                score.Weight,
			Modifiers:             score.Modifiers,
			Multiplier:            float64(score.ModifiedScore) / float64(score.BaseScore),
			BadCuts:               score.BadCuts,
			Score:                 score.ModifiedScore,
			Rank:                  score.Rank,
			MaxScore:              score.ModifiedScore,
			FullCombo:             score.FullCombo,
			DeviceHmd:             GetHMDStr(score.HMD),
			DeviceControllerLeft:  GetControllerStr(score.Controller),
			DeviceControllerRight: GetControllerStr(score.Controller),
			GeneratedTime:         time.Now().Format("2006-01-02 15:04:05.999999999-07:00"),
		})
	}
	return records, nil
}