package admin

import (
	"strconv"
	"strings"
	"time"

	"git.echol.cn/loser/Go-Web-Template/server/global"
	appModel "git.echol.cn/loser/Go-Web-Template/server/model/app"
	"git.echol.cn/loser/Go-Web-Template/server/model/common/response"
	"github.com/gin-gonic/gin"
)

type AppAssetTransactionsApi struct{}

type appAssetTransactionListItem struct {
	ID             uint      `json:"id"`
	AppUserID      uint      `json:"appUserId"`
	Username       string    `json:"username"`
	AssetType      string    `json:"assetType"`
	RechargeType   string    `json:"rechargeType"`
	DeltaLi        int64     `json:"deltaLi"`
	BeforeLi       int64     `json:"beforeLi"`
	AfterLi        int64     `json:"afterLi"`
	Reason         string    `json:"reason"`
	OperatorUserID uint      `json:"operatorUserId"`
	OperatorName   string    `json:"operatorName"`
	CreatedAt      time.Time `json:"createdAt"`
}

// GetAppAssetTransactionsList
// @Tags     AppAssetTransactionsAdmin
// @Summary  后台获取玩家资产流水列表（单位：厘）
// @Security ApiKeyAuth
// @Produce  application/json
// @Param    page           query     int     false  "页码" default(1)
// @Param    pageSize       query     int     false  "每页大小" default(10)
// @Param    userId         query     int     false  "玩家ID"
// @Param    username       query     string  false  "用户名（模糊）"
// @Param    assetType      query     string  false  "资产类型：account/game_coin"
// @Param    rechargeType   query     string  false  "变动类型（充值类型）：offline/online_not_arrived/activity_subsidy/manual_adjustment"
// @Param    operatorUserId query     int     false  "操作人ID"
// @Param    keyword        query     string  false  "关键字（原因模糊）"
// @Param    startAt        query     string  false  "开始时间(ISO8601/RFC3339)"
// @Param    endAt          query     string  false  "结束时间(ISO8601/RFC3339)"
// @Success  200  {object}  response.Response{data=response.PageResult,msg=string}  "获取成功"
// @Router   /admin/app-asset-transactions [get]
func (a *AppAssetTransactionsApi) GetAppAssetTransactionsList(c *gin.Context) {
	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
	pageSize, _ := strconv.Atoi(c.DefaultQuery("pageSize", "10"))
	if page <= 0 {
		page = 1
	}
	if pageSize <= 0 || pageSize > 200 {
		pageSize = 10
	}

	var (
		userID         uint
		operatorUserID uint
	)
	if raw := strings.TrimSpace(c.Query("userId")); raw != "" {
		if v, err := strconv.Atoi(raw); err == nil && v > 0 {
			userID = uint(v)
		}
	}
	if raw := strings.TrimSpace(c.Query("operatorUserId")); raw != "" {
		if v, err := strconv.Atoi(raw); err == nil && v > 0 {
			operatorUserID = uint(v)
		}
	}

	username := strings.TrimSpace(c.Query("username"))
	assetType := strings.TrimSpace(c.Query("assetType"))
	rechargeType := strings.TrimSpace(c.Query("rechargeType"))
	keyword := strings.TrimSpace(c.Query("keyword"))

	var startAt *time.Time
	if raw := strings.TrimSpace(c.Query("startAt")); raw != "" {
		if t, err := time.Parse(time.RFC3339, raw); err == nil {
			startAt = &t
		}
	}
	var endAt *time.Time
	if raw := strings.TrimSpace(c.Query("endAt")); raw != "" {
		if t, err := time.Parse(time.RFC3339, raw); err == nil {
			endAt = &t
		}
	}

	// tx + join app_users + join sys_users
	db := global.GVA_DB.Table("app_asset_transactions tx").
		Joins("JOIN app_users u ON u.id = tx.app_user_id").
		Joins("LEFT JOIN sys_users su ON su.id = tx.operator_user_id")

	if userID > 0 {
		db = db.Where("tx.app_user_id = ?", userID)
	}
	if username != "" {
		db = db.Where("u.username ILIKE ?", "%"+username+"%")
	}
	if assetType != "" {
		db = db.Where("tx.asset_type = ?", assetType)
	}
	if rechargeType != "" {
		db = db.Where("tx.recharge_type = ?", rechargeType)
	}
	if operatorUserID > 0 {
		db = db.Where("tx.operator_user_id = ?", operatorUserID)
	}
	if keyword != "" {
		db = db.Where("tx.reason ILIKE ?", "%"+keyword+"%")
	}
	if startAt != nil {
		db = db.Where("tx.created_at >= ?", *startAt)
	}
	if endAt != nil {
		db = db.Where("tx.created_at <= ?", *endAt)
	}

	var total int64
	if err := db.Count(&total).Error; err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}

	type row struct {
		appModel.AppAssetTransaction
		Username     string `gorm:"column:username"`
		OperatorName string `gorm:"column:operator_name"`
	}
	var rows []row
	if err := db.Select([]string{
		"tx.id",
		"tx.app_user_id",
		"tx.asset_type",
		"tx.recharge_type",
		"tx.delta_li",
		"tx.before_li",
		"tx.after_li",
		"tx.reason",
		"tx.operator_user_id",
		"tx.created_at",
		"u.username AS username",
		"su.username AS operator_name",
	}).Order("tx.id DESC").Limit(pageSize).Offset((page - 1) * pageSize).Scan(&rows).Error; err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}

	items := make([]appAssetTransactionListItem, 0, len(rows))
	for _, r := range rows {
		items = append(items, appAssetTransactionListItem{
			ID:             r.ID,
			AppUserID:      r.AppUserID,
			Username:       r.Username,
			AssetType:      string(r.AssetType),
			RechargeType:   string(r.RechargeType),
			DeltaLi:        r.DeltaLi,
			BeforeLi:       r.BeforeLi,
			AfterLi:        r.AfterLi,
			Reason:         r.Reason,
			OperatorUserID: r.OperatorUserID,
			OperatorName:   r.OperatorName,
			CreatedAt:      r.CreatedAt,
		})
	}

	response.OkWithDetailed(response.PageResult{
		List:     items,
		Total:    total,
		Page:     page,
		PageSize: pageSize,
	}, "获取成功", c)
}

// GetAppAssetTransactionById
// @Tags     AppAssetTransactionsAdmin
// @Summary  后台获取玩家资产流水详情
// @Security ApiKeyAuth
// @Produce  application/json
// @Param    id   path      int  true  "流水ID"
// @Success  200  {object}  response.Response{data=appAssetTransactionListItem,msg=string}  "获取成功"
// @Router   /admin/app-asset-transactions/{id} [get]
func (a *AppAssetTransactionsApi) GetAppAssetTransactionById(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))
	if id <= 0 {
		response.FailWithMessage("参数错误", c)
		return
	}

	type row struct {
		appModel.AppAssetTransaction
		Username     string `gorm:"column:username"`
		OperatorName string `gorm:"column:operator_name"`
	}
	var r row
	err := global.GVA_DB.Table("app_asset_transactions tx").
		Joins("JOIN app_users u ON u.id = tx.app_user_id").
		Joins("LEFT JOIN sys_users su ON su.id = tx.operator_user_id").
		Select([]string{
			"tx.id",
			"tx.app_user_id",
			"tx.asset_type",
			"tx.recharge_type",
			"tx.delta_li",
			"tx.before_li",
			"tx.after_li",
			"tx.reason",
			"tx.operator_user_id",
			"tx.created_at",
			"u.username AS username",
			"su.username AS operator_name",
		}).Where("tx.id = ?", id).Scan(&r).Error
	if err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}

	response.OkWithDetailed(appAssetTransactionListItem{
		ID:             r.ID,
		AppUserID:      r.AppUserID,
		Username:       r.Username,
		AssetType:      string(r.AssetType),
		RechargeType:   string(r.RechargeType),
		DeltaLi:        r.DeltaLi,
		BeforeLi:       r.BeforeLi,
		AfterLi:        r.AfterLi,
		Reason:         r.Reason,
		OperatorUserID: r.OperatorUserID,
		OperatorName:   r.OperatorName,
		CreatedAt:      r.CreatedAt,
	}, "获取成功", c)
}