package handler

import (
	"net/http"
	"strconv"

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

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

// DBCKBLeadList GET /api/db/ckb-leads 管理端-CKB线索明细
// mode=submitted: ckb_submit_records（join/match 提交）
// mode=contact: ckb_lead_records（链接卡若留资，有 phone/wechat）
func DBCKBLeadList(c *gin.Context) {
	db := database.DB()
	mode := c.DefaultQuery("mode", "submitted")
	matchType := c.Query("matchType")
	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
	pageSize, _ := strconv.Atoi(c.DefaultQuery("pageSize", "20"))
	if page < 1 {
		page = 1
	}
	if pageSize < 1 || pageSize > 100 {
		pageSize = 20
	}

	if mode == "contact" {
		// ckb_lead_records：链接卡若留资
		q := db.Model(&model.CkbLeadRecord{})
		var total int64
		q.Count(&total)
		var records []model.CkbLeadRecord
		if err := q.Order("created_at DESC").Offset((page - 1) * pageSize).Limit(pageSize).Find(&records).Error; err != nil {
			c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
			return
		}
		out := make([]gin.H, 0, len(records))
		for _, r := range records {
			out = append(out, gin.H{
				"id":           r.ID,
				"userId":       r.UserID,
				"userNickname": r.Nickname,
				"matchType":    "lead",
				"phone":        r.Phone,
				"wechatId":     r.WechatID,
				"name":         r.Name,
				"createdAt":    r.CreatedAt,
			})
		}
		c.JSON(http.StatusOK, gin.H{"success": true, "records": out, "total": total, "page": page, "pageSize": pageSize})
		return
	}

	// mode=submitted: ckb_submit_records
	q := db.Model(&model.CkbSubmitRecord{})
	if matchType != "" {
		// matchType 对应 action: join 时 type 在 params 中，match 时 matchType 在 params 中
		// 简化：仅按 action 过滤，join 时 params 含 type
		if matchType == "join" || matchType == "match" {
			q = q.Where("action = ?", matchType)
		}
	}
	var total int64
	q.Count(&total)
	var records []model.CkbSubmitRecord
	if err := q.Order("created_at DESC").Offset((page - 1) * pageSize).Limit(pageSize).Find(&records).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
		return
	}
	userIDs := make(map[string]bool)
	for _, r := range records {
		if r.UserID != "" {
			userIDs[r.UserID] = true
		}
	}
	ids := make([]string, 0, len(userIDs))
	for id := range userIDs {
		ids = append(ids, id)
	}
	var users []model.User
	if len(ids) > 0 {
		db.Where("id IN ?", ids).Find(&users)
	}
	userMap := make(map[string]*model.User)
	for i := range users {
		userMap[users[i].ID] = &users[i]
	}
	safeNickname := func(u *model.User) string {
		if u == nil || u.Nickname == nil {
			return ""
		}
		return *u.Nickname
	}
	out := make([]gin.H, 0, len(records))
	for _, r := range records {
		out = append(out, gin.H{
			"id":           r.ID,
			"userId":       r.UserID,
			"userNickname": safeNickname(userMap[r.UserID]),
			"matchType":    r.Action,
			"nickname":     r.Nickname,
			"params":       r.Params,
			"createdAt":    r.CreatedAt,
		})
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "records": out, "total": total, "page": page, "pageSize": pageSize})
}

// CKBPersonLeadStats GET /api/db/ckb-person-leads 每个人物的获客线索统计及明细
func CKBPersonLeadStats(c *gin.Context) {
	db := database.DB()
	personToken := c.Query("token")

	if personToken != "" {
		// 返回某人物的线索明细（通过 token → Person → 用 PersonID 和 Token 匹配 CkbLeadRecord.TargetPersonID）
		var person model.Person
		if err := db.Where("token = ?", personToken).First(&person).Error; err != nil {
			c.JSON(http.StatusOK, gin.H{"success": false, "error": "人物不存在"})
			return
		}
		page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
		pageSize, _ := strconv.Atoi(c.DefaultQuery("pageSize", "20"))
		if page < 1 {
			page = 1
		}
		if pageSize < 1 || pageSize > 100 {
			pageSize = 20
		}
		q := db.Model(&model.CkbLeadRecord{}).Where("target_person_id IN ?", []string{person.PersonID, person.Token})
		var total int64
		q.Count(&total)
		var records []model.CkbLeadRecord
		q.Order("created_at DESC").Offset((page - 1) * pageSize).Limit(pageSize).Find(&records)
		out := make([]gin.H, 0, len(records))
		for _, r := range records {
			out = append(out, gin.H{
				"id":        r.ID,
				"userId":    r.UserID,
				"nickname":  r.Nickname,
				"phone":     r.Phone,
				"wechatId":  r.WechatID,
				"name":      r.Name,
				"source":    r.Source,
				"createdAt": r.CreatedAt,
			})
		}
		c.JSON(http.StatusOK, gin.H{
			"success":    true,
			"personName": person.Name,
			"records":    out,
			"total":      total,
			"page":       page,
			"pageSize":   pageSize,
		})
		return
	}

	// 无 token 参数：返回所有人物的获客数量汇总
	type PersonLeadStat struct {
		TargetPersonID string `gorm:"column:target_person_id"`
		Total          int64  `gorm:"column:total"`
	}
	var stats []PersonLeadStat
	db.Raw("SELECT target_person_id, COUNT(*) as total FROM ckb_lead_records WHERE target_person_id != '' GROUP BY target_person_id").Scan(&stats)

	// 构建 personId/token → Person.Token 的映射，使前端能用 token 匹配
	var persons []model.Person
	db.Select("person_id, token").Find(&persons)
	pidToToken := make(map[string]string, len(persons))
	for _, p := range persons {
		pidToToken[p.PersonID] = p.Token
		pidToToken[p.Token] = p.Token
	}
	merged := make(map[string]int64)
	for _, s := range stats {
		key := pidToToken[s.TargetPersonID]
		if key == "" {
			key = s.TargetPersonID
		}
		merged[key] += s.Total
	}
	byPerson := make([]gin.H, 0, len(merged))
	for token, total := range merged {
		byPerson = append(byPerson, gin.H{"token": token, "total": total})
	}

	// 同时统计全局（无特定人物的）线索
	var globalTotal int64
	db.Model(&model.CkbLeadRecord{}).Where("target_person_id = '' OR target_person_id IS NULL").Count(&globalTotal)

	c.JSON(http.StatusOK, gin.H{
		"success":     true,
		"byPerson":    byPerson,
		"globalLeads": globalTotal,
	})
}

// CKBPlanStats GET /api/db/ckb-plan-stats 存客宝获客计划统计（基于 ckb_submit_records + ckb_lead_records）
func CKBPlanStats(c *gin.Context) {
	db := database.DB()
	type TypeStat struct {
		Action string `gorm:"column:action" json:"matchType"`
		Total  int64  `gorm:"column:total" json:"total"`
	}
	var submitStats []TypeStat
	db.Raw("SELECT action, COUNT(*) as total FROM ckb_submit_records GROUP BY action").Scan(&submitStats)
	var submitTotal int64
	db.Model(&model.CkbSubmitRecord{}).Count(&submitTotal)
	var leadTotal int64
	db.Model(&model.CkbLeadRecord{}).Count(&leadTotal)
	withContact := leadTotal // ckb_lead_records 均有 phone 或 wechat
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"data": gin.H{
			"ckbTotal":     submitTotal + leadTotal,
			"withContact":  withContact,
			"byType":       submitStats,
			"ckbApiKey":    "***",
			"ckbApiUrl":    "https://ckbapi.quwanzhi.com/v1/api/scenarios",
			"docNotes":     "",
			"docContent":   "",
			"routes":       gin.H{},
		},
	})
}