package handler

import (
	"encoding/json"
	"net/http"

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

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

var defaultMatchTypes = []gin.H{
	gin.H{"id": "partner", "label": "创业合伙", "matchLabel": "创业伙伴", "icon": "⭐", "matchFromDB": true, "showJoinAfterMatch": false, "price": 1, "enabled": true},
	gin.H{"id": "investor", "label": "资源对接", "matchLabel": "资源对接", "icon": "👥", "matchFromDB": false, "showJoinAfterMatch": true, "price": 1, "enabled": true},
	gin.H{"id": "mentor", "label": "导师顾问", "matchLabel": "商业顾问", "icon": "❤️", "matchFromDB": false, "showJoinAfterMatch": true, "price": 1, "enabled": true},
	gin.H{"id": "team", "label": "团队招募", "matchLabel": "加入项目", "icon": "🎮", "matchFromDB": false, "showJoinAfterMatch": true, "price": 1, "enabled": true},
}

// MatchConfigGet GET /api/match/config
func MatchConfigGet(c *gin.Context) {
	db := database.DB()
	var cfg model.SystemConfig
	if err := db.Where("config_key = ?", "match_config").First(&cfg).Error; err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": true,
			"data": gin.H{
				"matchTypes":     defaultMatchTypes,
				"freeMatchLimit": 3,
				"matchPrice":     1,
				"settings":      gin.H{"enableFreeMatches": true, "enablePaidMatches": true, "maxMatchesPerDay": 10},
			},
			"source": "default",
		})
		return
	}
	var config map[string]interface{}
	_ = json.Unmarshal(cfg.ConfigValue, &config)
	matchTypes := defaultMatchTypes
	if v, ok := config["matchTypes"].([]interface{}); ok && len(v) > 0 {
		matchTypes = make([]gin.H, 0, len(v))
		for _, t := range v {
			if m, ok := t.(map[string]interface{}); ok {
				enabled := true
				if e, ok := m["enabled"].(bool); ok && !e {
					enabled = false
				}
				if enabled {
					matchTypes = append(matchTypes, gin.H(m))
				}
			}
		}
		if len(matchTypes) == 0 {
			matchTypes = defaultMatchTypes
		}
	}
	freeMatchLimit := 3
	if v, ok := config["freeMatchLimit"].(float64); ok {
		freeMatchLimit = int(v)
	}
	matchPrice := 1
	if v, ok := config["matchPrice"].(float64); ok {
		matchPrice = int(v)
	}
	settings := gin.H{"enableFreeMatches": true, "enablePaidMatches": true, "maxMatchesPerDay": 10}
	if s, ok := config["settings"].(map[string]interface{}); ok {
		for k, v := range s {
			settings[k] = v
		}
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "data": gin.H{
		"matchTypes": matchTypes, "freeMatchLimit": freeMatchLimit, "matchPrice": matchPrice, "settings": settings,
	}, "source": "database"})
}

// MatchConfigPost POST /api/match/config
func MatchConfigPost(c *gin.Context) {
	c.JSON(http.StatusOK, gin.H{"success": true})
}

// MatchUsers POST /api/match/users
func MatchUsers(c *gin.Context) {
	var body struct {
		UserID    string `json:"userId" binding:"required"`
		MatchType string `json:"matchType"`
	}
	if err := c.ShouldBindJSON(&body); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"success": false, "message": "缺少用户ID"})
		return
	}
	var users []model.User
	if err := database.DB().Where("id != ?", body.UserID).Order("created_at DESC").Limit(20).Find(&users).Error; err != nil || len(users) == 0 {
		c.JSON(http.StatusOK, gin.H{"success": false, "message": "暂无匹配用户", "data": nil})
		return
	}
	// 随机选一个
	idx := 0
	if len(users) > 1 {
		idx = int(users[0].CreatedAt.Unix() % int64(len(users)))
	}
	r := users[idx]
	nickname := "微信用户"
	if r.Nickname != nil {
		nickname = *r.Nickname
	}
	avatar := ""
	if r.Avatar != nil {
		avatar = *r.Avatar
	}
	wechat := ""
	if r.WechatID != nil {
		wechat = *r.WechatID
	}
	phone := ""
	if r.Phone != nil {
		phone = *r.Phone
		if len(phone) == 11 {
			phone = phone[:3] + "****" + phone[7:]
		}
	}
	intro := "来自Soul创业派对的伙伴"
	matchLabels := map[string]string{"partner": "找伙伴", "investor": "资源对接", "mentor": "导师顾问", "team": "团队招募"}
	tag := matchLabels[body.MatchType]
	if tag == "" {
		tag = "找伙伴"
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"data": gin.H{
			"id": r.ID, "nickname": nickname, "avatar": avatar, "wechat": wechat, "phone": phone,
			"introduction": intro, "tags": []string{"创业者", tag},
			"matchScore": 80 + (r.CreatedAt.Unix() % 20),
			"commonInterests": []gin.H{
				gin.H{"icon": "📚", "text": "都在读《创业派对》"},
				gin.H{"icon": "💼", "text": "对创业感兴趣"},
				gin.H{"icon": "🎯", "text": "相似的发展方向"},
			},
		},
		"totalUsers": len(users),
	})
}