package handler

import (
	"encoding/json"
	"fmt"
	"net/http"
	"strconv"
	"strings"
	"time"

	"soul-api/internal/config"
	"soul-api/internal/database"
	"soul-api/internal/model"

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

// GetPublicDBConfig GET /api/miniprogram/config 公开接口，供小程序获取完整配置（与 next-project 对齐）
// 从 system_config 读取 chapter_config、feature_config、mp_config，合并后返回（免费以章节 is_free/price 为准）
func GetPublicDBConfig(c *gin.Context) {
	defaultPrices := gin.H{"section": float64(1), "fullbook": 9.9}
	defaultFeatures := gin.H{"matchEnabled": true, "referralEnabled": true, "searchEnabled": true, "aboutEnabled": true}
	apiDomain := "https://soulapi.quwanzhi.com"
	if cfg := config.Get(); cfg != nil && cfg.BaseURL != "" {
		apiDomain = cfg.BaseURL
	}
	defaultMp := gin.H{
		"appId": "wxb8bbb2b10dec74aa",
		"apiDomain": apiDomain,
		"buyerDiscount": 5,
		"referralBindDays": 30,
		"minWithdraw": 10,
		"withdrawSubscribeTmplId": "u3MbZGPRkrZIk-I7QdpwzFxnO_CeQPaCWF2FkiIablE",
		"mchId": "1318592501",
	}

	out := gin.H{
		"success": true,
		"prices":   defaultPrices,
		"features": defaultFeatures,
		"mpConfig": defaultMp,
		"configs":  gin.H{},
	}
	db := database.DB()

	keys := []string{"chapter_config", "feature_config", "mp_config"}
	for _, k := range keys {
		var row model.SystemConfig
		if err := db.Where("config_key = ?", k).First(&row).Error; err != nil {
			continue
		}
		var val interface{}
		if err := json.Unmarshal(row.ConfigValue, &val); err != nil {
			continue
		}
		switch k {
		case "chapter_config":
			if m, ok := val.(map[string]interface{}); ok {
				if v, ok := m["prices"].(map[string]interface{}); ok {
					out["prices"] = v
				}
				if v, ok := m["features"].(map[string]interface{}); ok {
					out["features"] = v
				}
				out["configs"].(gin.H)["chapter_config"] = m
			}
		case "feature_config":
			if m, ok := val.(map[string]interface{}); ok {
				// 合并到 features，不整体覆盖以保留 chapter_config 里的
				cur := out["features"].(gin.H)
				for kk, vv := range m {
					cur[kk] = vv
				}
				out["configs"].(gin.H)["feature_config"] = m
			}
		case "mp_config":
			if m, ok := val.(map[string]interface{}); ok {
				// 合并默认值，DB 有则覆盖
				merged := make(gin.H)
				for k, v := range defaultMp {
					merged[k] = v
				}
				for k, v := range m {
					merged[k] = v
				}
				out["mpConfig"] = merged
				out["configs"].(gin.H)["mp_config"] = merged
			}
		}
	}
	// 好友优惠（用于 read 页展示优惠价）
	var refRow model.SystemConfig
	if err := db.Where("config_key = ?", "referral_config").First(&refRow).Error; err == nil {
		var refVal map[string]interface{}
		if err := json.Unmarshal(refRow.ConfigValue, &refVal); err == nil {
			if v, ok := refVal["userDiscount"].(float64); ok {
				out["userDiscount"] = v
			}
		}
	}
	if _, has := out["userDiscount"]; !has {
		out["userDiscount"] = float64(5)
	}
	// 链接标签列表（小程序 onLinkTagTap 需要 type；miniprogram 类型存 mpKey，用 key 查 linkedMiniprograms 得 appId）
	var linkTagRows []model.LinkTag
	if err := db.Order("label ASC").Find(&linkTagRows).Error; err == nil {
		tags := make([]gin.H, 0, len(linkTagRows))
		for _, t := range linkTagRows {
			h := gin.H{"tagId": t.TagID, "label": t.Label, "url": t.URL, "type": t.Type, "pagePath": t.PagePath}
			if t.Type == "miniprogram" {
				h["mpKey"] = t.AppID // miniprogram 类型时 AppID 列存的是密钥
			} else {
				h["appId"] = t.AppID
			}
			tags = append(tags, h)
		}
		out["linkTags"] = tags
	}
	// 关联小程序列表（key 为 32 位密钥，小程序用 key 查 appId 后 wx.navigateToMiniProgram）
	var linkedMpRow model.SystemConfig
	if err := db.Where("config_key = ?", "linked_miniprograms").First(&linkedMpRow).Error; err == nil && len(linkedMpRow.ConfigValue) > 0 {
		var linkedList []gin.H
		if err := json.Unmarshal(linkedMpRow.ConfigValue, &linkedList); err == nil && len(linkedList) > 0 {
			out["linkedMiniprograms"] = linkedList
		}
	}
	if _, has := out["linkedMiniprograms"]; !has {
		out["linkedMiniprograms"] = []gin.H{}
	}
	c.JSON(http.StatusOK, out)
}

// DBConfigGet GET /api/db/config（管理端鉴权后同路径由 db 组处理时用）
func DBConfigGet(c *gin.Context) {
	key := c.Query("key")
	db := database.DB()
	var list []model.SystemConfig
	q := db.Table("system_config")
	if key != "" {
		q = q.Where("config_key = ?", key)
	}
	if err := q.Find(&list).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	if key != "" && len(list) == 1 {
		var val interface{}
		_ = json.Unmarshal(list[0].ConfigValue, &val)
		c.JSON(http.StatusOK, gin.H{"success": true, "data": val})
		return
	}
	data := make([]gin.H, 0, len(list))
	for _, row := range list {
		var val interface{}
		_ = json.Unmarshal(row.ConfigValue, &val)
		data = append(data, gin.H{"configKey": row.ConfigKey, "configValue": val})
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "data": data})
}

// AdminSettingsGet GET /api/admin/settings 系统设置页专用：仅返回功能开关、站点/作者与价格、小程序配置
func AdminSettingsGet(c *gin.Context) {
	db := database.DB()
	apiDomain := "https://soulapi.quwanzhi.com"
	if cfg := config.Get(); cfg != nil && cfg.BaseURL != "" {
		apiDomain = cfg.BaseURL
	}
	defaultMp := gin.H{
		"appId": "wxb8bbb2b10dec74aa",
		"apiDomain": apiDomain,
		"withdrawSubscribeTmplId": "u3MbZGPRkrZIk-I7QdpwzFxnO_CeQPaCWF2FkiIablE",
		"mchId": "1318592501",
		"minWithdraw": float64(10),
	}
	out := gin.H{
		"success":       true,
		"featureConfig": gin.H{"matchEnabled": true, "referralEnabled": true, "searchEnabled": true, "aboutEnabled": true},
		"siteSettings":  gin.H{"sectionPrice": float64(1), "baseBookPrice": 9.9, "distributorShare": float64(90), "authorInfo": gin.H{}},
		"mpConfig":      defaultMp,
		"ossConfig":     gin.H{},
	}
	keys := []string{"feature_config", "site_settings", "mp_config", "oss_config"}
	for _, k := range keys {
		var row model.SystemConfig
		if err := db.Where("config_key = ?", k).First(&row).Error; err != nil {
			continue
		}
		var val interface{}
		if err := json.Unmarshal(row.ConfigValue, &val); err != nil {
			continue
		}
		switch k {
		case "feature_config":
			if m, ok := val.(map[string]interface{}); ok && len(m) > 0 {
				out["featureConfig"] = m
			}
		case "site_settings":
			if m, ok := val.(map[string]interface{}); ok && len(m) > 0 {
				out["siteSettings"] = m
			}
		case "mp_config":
			if m, ok := val.(map[string]interface{}); ok {
				merged := make(gin.H)
				for k, v := range defaultMp {
					merged[k] = v
				}
				for k, v := range m {
					merged[k] = v
				}
				out["mpConfig"] = merged
			}
		case "oss_config":
			if m, ok := val.(map[string]interface{}); ok && len(m) > 0 {
				out["ossConfig"] = m
			}
		}
	}
	c.JSON(http.StatusOK, out)
}

// AdminSettingsPost POST /api/admin/settings 系统设置页专用：一次性保存功能开关、站点/作者与价格、小程序配置
func AdminSettingsPost(c *gin.Context) {
	var body struct {
		FeatureConfig map[string]interface{} `json:"featureConfig"`
		SiteSettings  map[string]interface{} `json:"siteSettings"`
		MpConfig      map[string]interface{} `json:"mpConfig"`
		OssConfig     map[string]interface{} `json:"ossConfig"`
	}
	if err := c.ShouldBindJSON(&body); err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": "请求体无效"})
		return
	}
	db := database.DB()
	saveKey := func(key, desc string, value interface{}) error {
		valBytes, err := json.Marshal(value)
		if err != nil {
			return err
		}
		var row model.SystemConfig
		err = db.Where("config_key = ?", key).First(&row).Error
		if err != nil {
			row = model.SystemConfig{ConfigKey: key, ConfigValue: valBytes, Description: &desc}
			return db.Create(&row).Error
		}
		row.ConfigValue = valBytes
		if desc != "" {
			row.Description = &desc
		}
		return db.Save(&row).Error
	}
	if body.FeatureConfig != nil {
		if err := saveKey("feature_config", "功能开关配置", body.FeatureConfig); err != nil {
			c.JSON(http.StatusOK, gin.H{"success": false, "error": "保存功能开关失败: " + err.Error()})
			return
		}
	}
	if body.SiteSettings != nil {
		if err := saveKey("site_settings", "站点与作者配置", body.SiteSettings); err != nil {
			c.JSON(http.StatusOK, gin.H{"success": false, "error": "保存站点设置失败: " + err.Error()})
			return
		}
	}
	if body.MpConfig != nil {
		if err := saveKey("mp_config", "小程序专用配置", body.MpConfig); err != nil {
			c.JSON(http.StatusOK, gin.H{"success": false, "error": "保存小程序配置失败: " + err.Error()})
			return
		}
	}
	if body.OssConfig != nil {
		if err := saveKey("oss_config", "阿里云 OSS 配置", body.OssConfig); err != nil {
			c.JSON(http.StatusOK, gin.H{"success": false, "error": "保存 OSS 配置失败: " + err.Error()})
			return
		}
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "message": "设置已保存"})
}

// AdminReferralSettingsGet GET /api/admin/referral-settings 推广设置页专用：仅返回 referral_config
func AdminReferralSettingsGet(c *gin.Context) {
	db := database.DB()
	defaultConfig := gin.H{
		"distributorShare":    float64(90),
		"minWithdrawAmount":  float64(10),
		"bindingDays":        float64(30),
		"userDiscount":       float64(5),
		"withdrawFee":        float64(5),
		"enableAutoWithdraw": false,
		"vipOrderShareVip":   float64(20),
		"vipOrderShareNonVip": float64(10),
	}
	var row model.SystemConfig
	if err := db.Where("config_key = ?", "referral_config").First(&row).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": true, "data": defaultConfig})
		return
	}
	var val map[string]interface{}
	if err := json.Unmarshal(row.ConfigValue, &val); err != nil || len(val) == 0 {
		c.JSON(http.StatusOK, gin.H{"success": true, "data": defaultConfig})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "data": val})
}

// AdminReferralSettingsPost POST /api/admin/referral-settings 推广设置页专用：仅保存 referral_config（请求体为完整配置对象）
func AdminReferralSettingsPost(c *gin.Context) {
	var body struct {
		DistributorShare    float64 `json:"distributorShare"`
		MinWithdrawAmount   float64 `json:"minWithdrawAmount"`
		BindingDays         float64 `json:"bindingDays"`
		UserDiscount        float64 `json:"userDiscount"`
		WithdrawFee         float64 `json:"withdrawFee"`
		EnableAutoWithdraw  bool    `json:"enableAutoWithdraw"`
		VipOrderShareVip    float64 `json:"vipOrderShareVip"`
		VipOrderShareNonVip float64 `json:"vipOrderShareNonVip"`
	}
	if err := c.ShouldBindJSON(&body); err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": "请求体无效"})
		return
	}
	vipOrderShareVip := body.VipOrderShareVip
	if vipOrderShareVip == 0 {
		vipOrderShareVip = 20
	}
	vipOrderShareNonVip := body.VipOrderShareNonVip
	if vipOrderShareNonVip == 0 {
		vipOrderShareNonVip = 10
	}
	val := gin.H{
		"distributorShare":    body.DistributorShare,
		"minWithdrawAmount":   body.MinWithdrawAmount,
		"bindingDays":        body.BindingDays,
		"userDiscount":       body.UserDiscount,
		"withdrawFee":        body.WithdrawFee,
		"enableAutoWithdraw": body.EnableAutoWithdraw,
		"vipOrderShareVip":   vipOrderShareVip,
		"vipOrderShareNonVip": vipOrderShareNonVip,
	}
	valBytes, err := json.Marshal(val)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	db := database.DB()
	desc := "分销 / 推广规则配置"
	var row model.SystemConfig
	if err := db.Where("config_key = ?", "referral_config").First(&row).Error; err != nil {
		row = model.SystemConfig{ConfigKey: "referral_config", ConfigValue: valBytes, Description: &desc}
		err = db.Create(&row).Error
	} else {
		row.ConfigValue = valBytes
		row.Description = &desc
		err = db.Save(&row).Error
	}
	if err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "message": "推广设置已保存"})
}

func authorConfigToResponse(row *model.AuthorConfig) gin.H {
	defaultStats := []gin.H{{"label": "商业案例", "value": "62"}, {"label": "连续直播", "value": "365天"}, {"label": "派对分享", "value": "1000+"}}
	defaultHighlights := []string{"5年私域运营经验", "帮助100+品牌从0到1增长", "连续创业者，擅长商业模式设计"}
	var stats []gin.H
	if row.Stats != "" {
		_ = json.Unmarshal([]byte(row.Stats), &stats)
	}
	if len(stats) == 0 {
		stats = defaultStats
	}
	var highlights []string
	if row.Highlights != "" {
		_ = json.Unmarshal([]byte(row.Highlights), &highlights)
	}
	if len(highlights) == 0 {
		highlights = defaultHighlights
	}
	return gin.H{
		"name":       row.Name,
		"avatar":     row.Avatar,
		"avatarImg":  row.AvatarImg,
		"title":      row.Title,
		"bio":        row.Bio,
		"stats":      stats,
		"highlights": highlights,
	}
}

// AdminAuthorSettingsGet GET /api/admin/author-settings 作者详情配置（管理端专用）
func AdminAuthorSettingsGet(c *gin.Context) {
	defaultAuthor := gin.H{
		"name":       "卡若",
		"avatar":     "K",
		"avatarImg":  "",
		"title":      "Soul派对房主理人 · 私域运营专家",
		"bio":        "每天早上6点到9点，在Soul派对房分享真实的创业故事。专注私域运营与项目变现，用云阿米巴模式帮助创业者构建可持续的商业体系。",
		"stats":      []gin.H{{"label": "商业案例", "value": "62"}, {"label": "连续直播", "value": "365天"}, {"label": "派对分享", "value": "1000+"}},
		"highlights": []string{"5年私域运营经验", "帮助100+品牌从0到1增长", "连续创业者，擅长商业模式设计"},
	}
	db := database.DB()
	var row model.AuthorConfig
	if err := db.First(&row).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": true, "data": defaultAuthor})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "data": authorConfigToResponse(&row)})
}

// AdminAuthorSettingsPost POST /api/admin/author-settings 保存作者详情配置
func AdminAuthorSettingsPost(c *gin.Context) {
	var body map[string]interface{}
	if err := c.ShouldBindJSON(&body); err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": "请求体无效"})
		return
	}
	str := func(k string) string {
		if v, ok := body[k]; ok && v != nil {
			if s, ok := v.(string); ok {
				return s
			}
			return fmt.Sprintf("%v", v)
		}
		return ""
	}
	name := str("name")
	if name == "" {
		name = "卡若"
	}
	avatar := str("avatar")
	if avatar == "" {
		avatar = "K"
	}
	statsVal := body["stats"]
	if statsVal == nil {
		statsVal = []gin.H{{"label": "商业案例", "value": "62"}, {"label": "连续直播", "value": "365天"}, {"label": "派对分享", "value": "1000+"}}
	}
	highlightsVal := body["highlights"]
	if highlightsVal == nil {
		highlightsVal = []string{}
	}
	statsBytes, _ := json.Marshal(statsVal)
	highlightsBytes, _ := json.Marshal(highlightsVal)

	db := database.DB()
	var row model.AuthorConfig
	err := db.First(&row).Error
	if err != nil {
		row = model.AuthorConfig{
			Name:      name,
			Avatar:    avatar,
			AvatarImg: str("avatarImg"),
			Title:     str("title"),
			Bio:       str("bio"),
			Stats:     string(statsBytes),
			Highlights: string(highlightsBytes),
		}
		err = db.Create(&row).Error
	} else {
		row.Name = name
		row.Avatar = avatar
		row.AvatarImg = str("avatarImg")
		row.Title = str("title")
		row.Bio = str("bio")
		row.Stats = string(statsBytes)
		row.Highlights = string(highlightsBytes)
		err = db.Save(&row).Error
	}
	if err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "message": "作者设置已保存"})
}

// MiniprogramAboutAuthor GET /api/miniprogram/about/author 小程序-关于作者页拉取作者配置（公开，无需鉴权）
func MiniprogramAboutAuthor(c *gin.Context) {
	defaultAuthor := gin.H{
		"name":       "卡若",
		"avatar":     "K",
		"avatarImg":  "",
		"title":      "Soul派对房主理人 · 私域运营专家",
		"bio":        "每天早上6点到9点，在Soul派对房分享真实的创业故事。",
		"stats":      []gin.H{{"label": "商业案例", "value": "62"}, {"label": "连续直播", "value": "365天"}, {"label": "派对分享", "value": "1000+"}},
		"highlights": []string{"5年私域运营经验", "帮助100+品牌从0到1增长", "连续创业者，擅长商业模式设计"},
	}
	db := database.DB()
	var row model.AuthorConfig
	if err := db.First(&row).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": true, "data": defaultAuthor})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "data": authorConfigToResponse(&row)})
}

// DBConfigPost POST /api/db/config
func DBConfigPost(c *gin.Context) {
	var body struct {
		Key         string      `json:"key"`
		Value       interface{} `json:"value"`
		Description string      `json:"description"`
	}
	if err := c.ShouldBindJSON(&body); err != nil || body.Key == "" {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": "配置键不能为空"})
		return
	}
	valBytes, err := json.Marshal(body.Value)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	db := database.DB()
	desc := body.Description
	var row model.SystemConfig
	err = db.Where("config_key = ?", body.Key).First(&row).Error
	if err != nil {
		row = model.SystemConfig{ConfigKey: body.Key, ConfigValue: valBytes, Description: &desc}
		err = db.Create(&row).Error
	} else {
		row.ConfigValue = valBytes
		if body.Description != "" {
			row.Description = &desc
		}
		err = db.Save(&row).Error
	}
	if err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "message": "配置保存成功"})
}

// DBUsersList GET /api/db/users（支持分页 page、pageSize，可选搜索 search；有 id 时返回单个 user；购买状态、分销收益、绑定人数从订单/绑定表实时计算）
func DBUsersList(c *gin.Context) {
	db := database.DB()
	id := strings.TrimSpace(c.Query("id"))
	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
	pageSize, _ := strconv.Atoi(c.DefaultQuery("pageSize", "10"))
	search := strings.TrimSpace(c.DefaultQuery("search", ""))
	vipFilter := c.Query("vip") // "true" 时仅返回 VIP（hasFullBook）
	poolFilter := c.Query("pool") // "complete" 时仅返回已完善资料的用户
	if page < 1 {
		page = 1
	}
	if pageSize < 1 || pageSize > 100 {
		pageSize = 10
	}

	// 有 id 时返回单个用户（供 UserDetailModal 等使用）
	if id != "" {
		var user model.User
		if err := db.Where("id = ?", id).First(&user).Error; err != nil {
			c.JSON(http.StatusOK, gin.H{"success": true, "user": nil})
			return
		}
		// 填充 hasFullBook（含 is_vip 或 orders）
		var cnt int64
		db.Model(&model.Order{}).Where("user_id = ? AND (status = ? OR status = ?) AND (product_type = ? OR product_type = ?)",
			id, "paid", "completed", "fullbook", "vip").Count(&cnt)
		user.HasFullBook = ptrBool(cnt > 0)
		if user.IsVip != nil && *user.IsVip {
			user.HasFullBook = ptrBool(true)
		}
		c.JSON(http.StatusOK, gin.H{"success": true, "user": user})
		return
	}

	q := db.Model(&model.User{})
	if search != "" {
		pattern := "%" + search + "%"
		q = q.Where("COALESCE(nickname,'') LIKE ? OR COALESCE(phone,'') LIKE ? OR id LIKE ?", pattern, pattern, pattern)
	}
	if poolFilter == "complete" {
		q = q.Where("(phone IS NOT NULL AND phone != '') AND (nickname IS NOT NULL AND nickname != '' AND nickname != '微信用户') AND (avatar IS NOT NULL AND avatar != '')")
	} else if vipFilter == "true" || vipFilter == "1" {
		q = q.Where("id IN (SELECT user_id FROM orders WHERE product_type IN ? AND (status = ? OR status = ?)) OR (is_vip = 1 AND vip_expire_date > ?)",
			[]string{"fullbook", "vip"}, "paid", "completed", time.Now())
	}
	var total int64
	q.Count(&total)

	var users []model.User
	query := db.Model(&model.User{})
	if search != "" {
		pattern := "%" + search + "%"
		query = query.Where("COALESCE(nickname,'') LIKE ? OR COALESCE(phone,'') LIKE ? OR id LIKE ?", pattern, pattern, pattern)
	}
	if vipFilter == "true" || vipFilter == "1" {
		query = query.Where("id IN (SELECT user_id FROM orders WHERE product_type IN ? AND (status = ? OR status = ?)) OR (is_vip = 1 AND vip_expire_date > ?)",
			[]string{"fullbook", "vip"}, "paid", "completed", time.Now())
	}
	if err := query.Order("created_at DESC").
		Offset((page - 1) * pageSize).
		Limit(pageSize).
		Find(&users).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error(), "users": []interface{}{}})
		return
	}
	totalPages := int(total) / pageSize
	if int(total)%pageSize > 0 {
		totalPages++
	}

	if len(users) == 0 {
		c.JSON(http.StatusOK, gin.H{
			"success": true, "users": users,
			"total": total, "page": page, "pageSize": pageSize, "totalPages": totalPages,
		})
		return
	}

	userIDs := make([]string, 0, len(users))
	for _, u := range users {
		userIDs = append(userIDs, u.ID)
	}

	// 1. 购买状态：全书已购、已付费章节数（从 orders 计算）
	hasFullBookMap := make(map[string]bool)
	sectionCountMap := make(map[string]int)
	var fullbookRows []struct {
		UserID string
	}
	db.Model(&model.Order{}).Select("user_id").Where("product_type IN ? AND status = ?", []string{"fullbook", "vip"}, "paid").Find(&fullbookRows)
	for _, r := range fullbookRows {
		hasFullBookMap[r.UserID] = true
	}
	var sectionRows []struct {
		UserID string
		Count  int64
	}
	db.Model(&model.Order{}).Select("user_id, COUNT(*) as count").
		Where("product_type = ? AND status = ?", "section", "paid").
		Group("user_id").Find(&sectionRows)
	for _, r := range sectionRows {
		sectionCountMap[r.UserID] = int(r.Count)
	}

	// 2. 分销收益：从 referrer 订单逐条 computeOrderCommission 求和（会员订单 20%/10%，内容订单 90%）
	referrerEarningsMap := make(map[string]float64)
	var referrerOrders []model.Order
	db.Where("referrer_id IS NOT NULL AND referrer_id != '' AND status = ?", "paid").Find(&referrerOrders)
	for i := range referrerOrders {
		rid := referrerOrders[i].ReferrerID
		if rid != nil && *rid != "" {
			referrerEarningsMap[*rid] += computeOrderCommission(db, &referrerOrders[i], nil)
		}
	}
	withdrawnMap := make(map[string]float64)
	var withdrawnRows []struct {
		UserID string
		Total  float64
	}
	db.Model(&model.Withdrawal{}).Select("user_id, COALESCE(SUM(amount), 0) as total").
		Where("status = ?", "success").
		Group("user_id").Find(&withdrawnRows)
	for _, r := range withdrawnRows {
		withdrawnMap[r.UserID] = r.Total
	}
	pendingWithdrawMap := make(map[string]float64)
	var pendingRows []struct {
		UserID string
		Total  float64
	}
	db.Model(&model.Withdrawal{}).Select("user_id, COALESCE(SUM(amount), 0) as total").
		Where("status IN ?", []string{"pending", "processing", "pending_confirm"}).
		Group("user_id").Find(&pendingRows)
	for _, r := range pendingRows {
		pendingWithdrawMap[r.UserID] = r.Total
	}

	// 3. 绑定人数：从 referral_bindings 计算
	referralCountMap := make(map[string]int)
	var refCountRows []struct {
		ReferrerID string
		Count      int64
	}
	db.Model(&model.ReferralBinding{}).Select("referrer_id, COUNT(*) as count").
		Group("referrer_id").Find(&refCountRows)
	for _, r := range refCountRows {
		referralCountMap[r.ReferrerID] = int(r.Count)
	}

	// 4. 用户余额：从 user_balances 查询
	balanceMap := make(map[string]float64)
	var balRows []struct {
		UserID  string
		Balance float64
	}
	db.Table("user_balances").Select("user_id, COALESCE(balance, 0) as balance").Find(&balRows)
	for _, r := range balRows {
		balanceMap[r.UserID] = r.Balance
	}

	// 填充每个用户的实时计算字段
	for i := range users {
		uid := users[i].ID
		// 购买状态（含手动设置的 VIP：is_vip=1 且 vip_expire_date>NOW）
		hasFull := hasFullBookMap[uid]
		if users[i].IsVip != nil && *users[i].IsVip && users[i].VipExpireDate != nil && users[i].VipExpireDate.After(time.Now()) {
			hasFull = true
		}
		users[i].HasFullBook = ptrBool(hasFull)
		users[i].PurchasedSectionCount = sectionCountMap[uid]
		// 分销收益
		totalE := referrerEarningsMap[uid]
		withdrawn := withdrawnMap[uid]
		pendingWd := pendingWithdrawMap[uid]
		available := totalE - withdrawn - pendingWd
		if available < 0 {
			available = 0
		}
		users[i].Earnings = ptrFloat64(totalE)
		users[i].PendingEarnings = ptrFloat64(available)
		users[i].WithdrawnEarnings = ptrFloat64(withdrawn)
		users[i].ReferralCount = ptrInt(referralCountMap[uid])
		users[i].WalletBalance = ptrFloat64(balanceMap[uid])
	}

	c.JSON(http.StatusOK, gin.H{
		"success": true, "users": users,
		"total": total, "page": page, "pageSize": pageSize, "totalPages": totalPages,
	})
}

func ptrBool(b bool) *bool       { return &b }
func ptrFloat64(f float64) *float64 { v := f; return &v }
func ptrInt(n int) *int       { return &n }

// DBUsersAction POST /api/db/users（创建）、PUT /api/db/users（更新）
func DBUsersAction(c *gin.Context) {
	db := database.DB()
	if c.Request.Method == http.MethodPost {
		var body struct {
			OpenID    *string `json:"openId"`
			Phone     *string `json:"phone"`
			Nickname  *string `json:"nickname"`
			WechatID  *string `json:"wechatId"`
			Avatar    *string `json:"avatar"`
			IsAdmin   *bool   `json:"isAdmin"`
		}
		if err := c.ShouldBindJSON(&body); err != nil {
			c.JSON(http.StatusOK, gin.H{"success": false, "error": "请求体无效"})
			return
		}
		userID := "user_" + randomSuffix()
		code := "SOUL" + randomSuffix()[:4]
		nick := "用户"
		if body.Nickname != nil && *body.Nickname != "" {
			nick = *body.Nickname
		} else {
			nick = nick + userID[len(userID)-4:]
		}
		u := model.User{
			ID: userID, Nickname: &nick, ReferralCode: &code,
			OpenID: body.OpenID, Phone: body.Phone, WechatID: body.WechatID, Avatar: body.Avatar,
		}
		if body.IsAdmin != nil {
			u.IsAdmin = body.IsAdmin
		}
		if err := db.Create(&u).Error; err != nil {
			c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
			return
		}
		c.JSON(http.StatusOK, gin.H{"success": true, "user": u, "isNew": true, "message": "用户创建成功"})
		return
	}
	// PUT 更新（含 VIP 手动设置：is_vip、vip_expire_date、vip_name、vip_avatar、vip_project、vip_contact、vip_bio）
	var body struct {
		ID               string    `json:"id"`
		Nickname         *string   `json:"nickname"`
		Phone            *string   `json:"phone"`
		WechatID         *string   `json:"wechatId"`
		Avatar           *string   `json:"avatar"`
		Tags             *string   `json:"tags"`
		HasFullBook      *bool     `json:"hasFullBook"`
		IsAdmin          *bool     `json:"isAdmin"`
		Earnings         *float64  `json:"earnings"`
		PendingEarnings  *float64  `json:"pendingEarnings"`
		IsVip            *bool     `json:"isVip"`
		VipExpireDate    *string   `json:"vipExpireDate"` // "2026-12-31" 或 "2026-12-31 23:59:59"
		VipSort          *int      `json:"vipSort"`     // 手动排序，越小越前
		VipRole          *string   `json:"vipRole"`     // 角色：从 vip_roles 选或手动填写
		VipName          *string   `json:"vipName"`
		VipAvatar        *string   `json:"vipAvatar"`
		VipProject       *string   `json:"vipProject"`
		VipContact       *string   `json:"vipContact"`
		VipBio           *string   `json:"vipBio"`
	}
	if err := c.ShouldBindJSON(&body); err != nil || body.ID == "" {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": "用户ID不能为空"})
		return
	}
	// 手动设置 VIP 时，必须提供有效到期日
	if body.IsVip != nil && *body.IsVip {
		if body.VipExpireDate == nil || strings.TrimSpace(*body.VipExpireDate) == "" {
			c.JSON(http.StatusOK, gin.H{"success": false, "error": "开启 VIP 时请填写有效到期日"})
			return
		}
		if _, err := time.ParseInLocation("2006-01-02", strings.TrimSpace(*body.VipExpireDate), time.Local); err != nil {
			if _, err2 := time.ParseInLocation("2006-01-02 15:04:05", strings.TrimSpace(*body.VipExpireDate), time.Local); err2 != nil {
				c.JSON(http.StatusOK, gin.H{"success": false, "error": "到期日格式无效，请使用 YYYY-MM-DD"})
				return
			}
		}
	}
	updates := map[string]interface{}{}
	if body.Nickname != nil {
		updates["nickname"] = *body.Nickname
	}
	if body.Phone != nil {
		updates["phone"] = *body.Phone
	}
	if body.WechatID != nil {
		updates["wechat_id"] = *body.WechatID
	}
	if body.Avatar != nil {
		updates["avatar"] = *body.Avatar
	}
	if body.Tags != nil {
		updates["tags"] = *body.Tags
	}
	if body.HasFullBook != nil {
		updates["has_full_book"] = *body.HasFullBook
	}
	if body.IsAdmin != nil {
		updates["is_admin"] = *body.IsAdmin
	}
	if body.Earnings != nil {
		updates["earnings"] = *body.Earnings
	}
	if body.PendingEarnings != nil {
		updates["pending_earnings"] = *body.PendingEarnings
	}
	if body.IsVip != nil {
		updates["is_vip"] = *body.IsVip
		if *body.IsVip {
			now := time.Now()
			updates["vip_activated_at"] = now // 手动设置时与付款一致：按时间排序，最新在前
		} else {
			updates["vip_activated_at"] = nil
		}
	}
	if body.VipExpireDate != nil {
		if *body.VipExpireDate == "" {
			updates["vip_expire_date"] = nil
		} else {
			if t, err := time.ParseInLocation("2006-01-02", *body.VipExpireDate, time.Local); err == nil {
				updates["vip_expire_date"] = t
			} else if t, err := time.ParseInLocation("2006-01-02 15:04:05", *body.VipExpireDate, time.Local); err == nil {
				updates["vip_expire_date"] = t
			}
		}
	}
	if body.VipSort != nil {
		updates["vip_sort"] = *body.VipSort
	}
	if body.VipRole != nil {
		s := strings.TrimSpace(*body.VipRole)
		if s == "" {
			updates["vip_role"] = nil
		} else {
			updates["vip_role"] = s
		}
	}
	if body.VipName != nil {
		updates["vip_name"] = *body.VipName
	}
	if body.VipAvatar != nil {
		updates["vip_avatar"] = *body.VipAvatar
	}
	if body.VipProject != nil {
		updates["vip_project"] = *body.VipProject
	}
	if body.VipContact != nil {
		updates["vip_contact"] = *body.VipContact
	}
	if body.VipBio != nil {
		updates["vip_bio"] = *body.VipBio
	}
	if body.Tags != nil {
		updates["tags"] = *body.Tags
	}
	if len(updates) == 0 {
		c.JSON(http.StatusOK, gin.H{"success": true, "message": "没有需要更新的字段"})
		return
	}
	// VIP 相关更新时记录日志（手动设置）
	if body.IsVip != nil || body.VipExpireDate != nil || body.VipName != nil || body.VipAvatar != nil || body.VipProject != nil || body.VipContact != nil || body.VipBio != nil {
		isVipStr := "-"
		if body.IsVip != nil {
			isVipStr = fmt.Sprintf("%v", *body.IsVip)
		}
		vipExpire := "-"
		if body.VipExpireDate != nil {
			vipExpire = *body.VipExpireDate
		}
		fmt.Printf("[VIP] 设置方式=手动设置, userId=%s, isVip=%s, vipExpireDate=%s\n", body.ID, isVipStr, vipExpire)
	}
	if err := db.Model(&model.User{}).Where("id = ?", body.ID).Updates(updates).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "message": "用户更新成功"})
}

func randomSuffix() string {
	return fmt.Sprintf("%d%x", time.Now().UnixNano()%100000, time.Now().UnixNano()&0xfff)
}

// DBUsersDelete DELETE /api/db/users
func DBUsersDelete(c *gin.Context) {
	id := c.Query("id")
	if id == "" {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": "用户ID不能为空"})
		return
	}
	if err := database.DB().Where("id = ?", id).Delete(&model.User{}).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "message": "用户删除成功"})
}

// DBUsersReferrals GET /api/db/users/referrals（绑定关系详情弹窗；收益与「已付费」与小程序口径一致：订单+提现表实时计算）
func DBUsersReferrals(c *gin.Context) {
	userId := c.Query("userId")
	if userId == "" {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": "缺少 userId"})
		return
	}
	db := database.DB()

	var bindings []model.ReferralBinding
	if err := db.Where("referrer_id = ?", userId).Order("binding_date DESC").Find(&bindings).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": true, "referrals": []interface{}{}, "stats": gin.H{"total": 0, "purchased": 0, "free": 0, "earnings": 0, "pendingEarnings": 0, "withdrawnEarnings": 0}})
		return
	}
	refereeIds := make([]string, 0, len(bindings))
	for _, b := range bindings {
		refereeIds = append(refereeIds, b.RefereeID)
	}
	var users []model.User
	if len(refereeIds) > 0 {
		db.Where("id IN ?", refereeIds).Find(&users)
	}
	userMap := make(map[string]*model.User)
	for i := range users {
		userMap[users[i].ID] = &users[i]
	}
	referrals := make([]gin.H, 0, len(bindings))
	for _, b := range bindings {
		u := userMap[b.RefereeID]
		nick := "微信用户"
		var avatar *string
		var phone *string
		hasFullBook := false
		if u != nil {
			if u.Nickname != nil {
				nick = *u.Nickname
			}
			avatar, phone = u.Avatar, u.Phone
			if u.HasFullBook != nil {
				hasFullBook = *u.HasFullBook
			}
		}
		status := "active"
		if b.Status != nil {
			status = *b.Status
		}
		daysRemaining := 0
		if b.ExpiryDate.After(time.Now()) {
			daysRemaining = int(b.ExpiryDate.Sub(time.Now()).Hours() / 24)
		}
		// 已付费：与小程序一致，以绑定记录的 purchase_count > 0 为准（支付回调会更新该字段）
		hasPaid := b.PurchaseCount != nil && *b.PurchaseCount > 0
		displayStatus := bindingStatusDisplay(hasPaid, hasFullBook) // vip | paid | free，供前端徽章展示
		referrals = append(referrals, gin.H{
			"id": b.RefereeID, "nickname": nick, "avatar": avatar, "phone": phone,
			"hasFullBook": hasFullBook || status == "converted",
			"purchasedSections": getBindingPurchaseCount(b),
			"createdAt": b.BindingDate, "bindingStatus": status, "daysRemaining": daysRemaining, "commission": b.TotalCommission,
			"status": displayStatus,
		})
	}

	// 累计收益、待提现：与小程序 MyEarnings 一致，从订单逐条 computeOrderCommission 求和
	var refOrders []model.Order
	db.Where("referrer_id = ? AND status = ?", userId, "paid").Find(&refOrders)
	earningsE := 0.0
	for i := range refOrders {
		earningsE += computeOrderCommission(db, &refOrders[i], nil)
	}

	var withdrawnSum struct{ Total float64 }
	db.Model(&model.Withdrawal{}).Select("COALESCE(SUM(amount), 0) as total").
		Where("user_id = ? AND status = ?", userId, "success").
		Scan(&withdrawnSum)
	withdrawnE := withdrawnSum.Total

	var pendingWdSum struct{ Total float64 }
	db.Model(&model.Withdrawal{}).Select("COALESCE(SUM(amount), 0) as total").
		Where("user_id = ? AND status IN ?", userId, []string{"pending", "processing", "pending_confirm"}).
		Scan(&pendingWdSum)
	availableE := earningsE - withdrawnE - pendingWdSum.Total
	if availableE < 0 {
		availableE = 0
	}

	// 已付费人数：与小程序一致，绑定中 purchase_count > 0 的条数
	purchased := 0
	for _, b := range bindings {
		if b.PurchaseCount != nil && *b.PurchaseCount > 0 {
			purchased++
		}
	}

	c.JSON(http.StatusOK, gin.H{
		"success": true, "referrals": referrals,
		"stats": gin.H{
			"total": len(bindings), "purchased": purchased, "free": len(bindings) - purchased,
			"earnings": roundFloat(earningsE, 2), "pendingEarnings": roundFloat(availableE, 2), "withdrawnEarnings": roundFloat(withdrawnE, 2),
		},
	})
}

func getBindingPurchaseCount(b model.ReferralBinding) int {
	if b.PurchaseCount == nil {
		return 0
	}
	return *b.PurchaseCount
}

func bindingStatusDisplay(hasPaid bool, hasFullBook bool) string {
	if hasFullBook {
		return "vip"
	}
	if hasPaid {
		return "paid"
	}
	return "free"
}

func roundFloat(v float64, prec int) float64 {
	ratio := 1.0
	for i := 0; i < prec; i++ {
		ratio *= 10
	}
	return float64(int(v*ratio+0.5)) / ratio
}

// DBInit POST /api/db/init
func DBInit(c *gin.Context) {
	c.JSON(http.StatusOK, gin.H{"success": true, "data": gin.H{"message": "初始化接口已就绪（表结构由迁移维护）"}})
}

// DBDistribution GET /api/db/distribution（支持分页 page、pageSize，筛选 status、search）
func DBDistribution(c *gin.Context) {
	userId := c.Query("userId")
	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
	pageSize, _ := strconv.Atoi(c.DefaultQuery("pageSize", "10"))
	statusFilter := c.Query("status")
	if page < 1 {
		page = 1
	}
	if pageSize < 1 || pageSize > 100 {
		pageSize = 10
	}

	db := database.DB()
	q := db.Model(&model.ReferralBinding{})
	if userId != "" {
		q = q.Where("referrer_id = ?", userId)
	}
	if statusFilter != "" && statusFilter != "all" {
		q = q.Where("status = ?", statusFilter)
	}
	var total int64
	q.Count(&total)

	var bindings []model.ReferralBinding
	query := db.Model(&model.ReferralBinding{}).Order("binding_date DESC")
	if userId != "" {
		query = query.Where("referrer_id = ?", userId)
	}
	if statusFilter != "" && statusFilter != "all" {
		query = query.Where("status = ?", statusFilter)
	}
	if err := query.Offset((page-1)*pageSize).Limit(pageSize).Find(&bindings).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": true, "bindings": []interface{}{}, "total": 0, "page": page, "pageSize": pageSize, "totalPages": 0})
		return
	}
	referrerIds := make(map[string]bool)
	refereeIds := make(map[string]bool)
	for _, b := range bindings {
		referrerIds[b.ReferrerID] = true
		refereeIds[b.RefereeID] = true
	}
	allIds := make([]string, 0, len(referrerIds)+len(refereeIds))
	for id := range referrerIds {
		allIds = append(allIds, id)
	}
	for id := range refereeIds {
		if !referrerIds[id] {
			allIds = append(allIds, id)
		}
	}
	var users []model.User
	if len(allIds) > 0 {
		db.Where("id IN ?", allIds).Find(&users)
	}
	userMap := make(map[string]*model.User)
	for i := range users {
		userMap[users[i].ID] = &users[i]
	}
	getStr := func(s *string) string {
		if s == nil || *s == "" {
			return ""
		}
		return *s
	}
	out := make([]gin.H, 0, len(bindings))
	for _, b := range bindings {
		refNick := "微信用户"
		var refereePhone, refereeAvatar *string
		if u := userMap[b.RefereeID]; u != nil {
			if u.Nickname != nil && *u.Nickname != "" {
				refNick = *u.Nickname
			} else {
				refNick = "微信用户"
			}
			refereePhone = u.Phone
			refereeAvatar = u.Avatar
		}
		var referrerName, referrerAvatar *string
		if u := userMap[b.ReferrerID]; u != nil {
			referrerName = u.Nickname
			referrerAvatar = u.Avatar
		}
		days := 0
		if b.ExpiryDate.After(time.Now()) {
			days = int(b.ExpiryDate.Sub(time.Now()).Hours() / 24)
		}
		// 佣金展示用累计佣金 total_commission（支付回调累加），无则用 commission_amount
		commissionVal := b.TotalCommission
		if commissionVal == nil {
			commissionVal = b.CommissionAmount
		}
		statusVal := ""
		if b.Status != nil {
			statusVal = *b.Status
		}
		out = append(out, gin.H{
			"id": b.ID, "referrerId": b.ReferrerID, "referrerName": getStr(referrerName), "referrerCode": b.ReferralCode, "referrerAvatar": getStr(referrerAvatar),
			"refereeId": b.RefereeID, "refereeNickname": refNick, "refereePhone": getStr(refereePhone), "refereeAvatar": getStr(refereeAvatar),
			"boundAt": b.BindingDate, "expiresAt": b.ExpiryDate, "status": statusVal,
			"daysRemaining": days, "commission": commissionVal, "totalCommission": commissionVal, "source": "miniprogram",
		})
	}
	totalPages := int(total) / pageSize
	if int(total)%pageSize > 0 {
		totalPages++
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true, "bindings": out,
		"total": total, "page": page, "pageSize": pageSize, "totalPages": totalPages,
	})
}

// DBChapters GET/POST /api/db/chapters
func DBChapters(c *gin.Context) {
	var list []model.Chapter
	if err := database.DB().Order("sort_order ASC, id ASC").Find(&list).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error(), "data": []interface{}{}})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "data": list})
}

// DBConfigDelete DELETE /api/db/config
func DBConfigDelete(c *gin.Context) {
	key := c.Query("key")
	if key == "" {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": "配置键不能为空"})
		return
	}
	if err := database.DB().Where("config_key = ?", key).Delete(&model.SystemConfig{}).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true})
}

// DBInitGet GET /api/db/init
func DBInitGet(c *gin.Context) {
	c.JSON(http.StatusOK, gin.H{"success": true, "data": gin.H{"message": "ok"}})
}

// DBMigrateGet GET /api/db/migrate
func DBMigrateGet(c *gin.Context) {
	c.JSON(http.StatusOK, gin.H{"success": true, "message": "迁移状态查询（由 Prisma/外部维护）"})
}

// DBMigratePost POST /api/db/migrate
func DBMigratePost(c *gin.Context) {
	c.JSON(http.StatusOK, gin.H{"success": true, "message": "迁移由 Prisma/外部执行"})
}