package handler

import (
	"net/http"

	"gpt-plus/internal/db"

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

type configGroup struct {
	Group string            `json:"group"`
	Items []db.SystemConfig `json:"items"`
}

func GetConfig(c *gin.Context) {
	var configs []db.SystemConfig
	if err := db.GetDB().Order("\"group\", key").Find(&configs).Error; err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	// Mask password fields
	for i := range configs {
		if configs[i].Type == "password" && configs[i].Value != "" {
			configs[i].Value = "••••••••"
		}
	}

	groups := make(map[string][]db.SystemConfig)
	for _, cfg := range configs {
		groups[cfg.Group] = append(groups[cfg.Group], cfg)
	}
	c.JSON(http.StatusOK, gin.H{"groups": groups})
}

type updateConfigRequest struct {
	Items []struct {
		Key   string `json:"key" binding:"required"`
		Value string `json:"value"`
	} `json:"items" binding:"required"`
}

func UpdateConfig(c *gin.Context) {
	var req updateConfigRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	tx := db.GetDB().Begin()
	for _, item := range req.Items {
		// Skip masked password values
		if item.Value == "••••••••" {
			continue
		}

		var existing db.SystemConfig
		if err := tx.Where("key = ?", item.Key).First(&existing).Error; err != nil {
			tx.Rollback()
			c.JSON(http.StatusNotFound, gin.H{"error": "配置项不存在: " + item.Key})
			return
		}

		value := item.Value
		if existing.Type == "password" && value != "" {
			encrypted, err := db.Encrypt(value)
			if err != nil {
				tx.Rollback()
				c.JSON(http.StatusInternalServerError, gin.H{"error": "加密失败"})
				return
			}
			value = encrypted
		}

		if err := tx.Model(&existing).Update("value", value).Error; err != nil {
			tx.Rollback()
			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
			return
		}
	}
	tx.Commit()
	c.JSON(http.StatusOK, gin.H{"message": "配置已更新"})
}

func SeedDefaultConfigs() {
	defaults := []db.SystemConfig{
		// Proxy group
		{Key: "proxy.mode", Value: "b2proxy", Group: "proxy", Label: "代理模式", Type: "string"},
		{Key: "proxy.url", Value: "", Group: "proxy", Label: "代理地址", Type: "string"},
		{Key: "proxy.b2proxy.enabled", Value: "true", Group: "proxy", Label: "启用 B2Proxy", Type: "bool"},
		{Key: "proxy.b2proxy.api_base", Value: "http://global.rrp.b2proxy.com:8089", Group: "proxy", Label: "B2Proxy API 地址", Type: "string"},
		{Key: "proxy.b2proxy.zone", Value: "custom", Group: "proxy", Label: "B2Proxy 区域", Type: "string"},
		{Key: "proxy.b2proxy.proto", Value: "socks5", Group: "proxy", Label: "B2Proxy 协议", Type: "string"},
		{Key: "proxy.b2proxy.sess_time", Value: "5", Group: "proxy", Label: "会话时长(分钟)", Type: "int"},

		// Email group
		{Key: "email.gateway.base_url", Value: "https://regmail.zhengmi.org", Group: "email", Label: "邮箱网关地址", Type: "string"},
		{Key: "email.gateway.api_key", Value: "Admin2026.", Group: "email", Label: "邮箱网关 API Key", Type: "password"},
		{Key: "email.gateway.provider", Value: "mail", Group: "email", Label: "邮箱网关 Provider", Type: "string"},

		// Card group
		{Key: "card.max_binds", Value: "0", Group: "card", Label: "单卡最大绑定次数(0=无限)", Type: "int"},
		{Key: "card.default_name", Value: "Anna Hoover", Group: "card", Label: "默认持卡人姓名", Type: "string"},
		{Key: "card.default_country", Value: "US", Group: "card", Label: "默认国家", Type: "string"},
		{Key: "card.default_currency", Value: "USD", Group: "card", Label: "默认货币", Type: "string"},
		{Key: "card.default_address", Value: "1208 Oakdale Street", Group: "card", Label: "默认地址", Type: "string"},
		{Key: "card.default_city", Value: "Jonesboro", Group: "card", Label: "默认城市", Type: "string"},
		{Key: "card.default_state", Value: "AR", Group: "card", Label: "默认州/省", Type: "string"},
		{Key: "card.default_postal_code", Value: "72401", Group: "card", Label: "默认邮编", Type: "string"},
		{Key: "card.api_base_url", Value: "https://yyl.ncet.top", Group: "card", Label: "开卡 API 地址", Type: "string"},
		{Key: "card.api_key", Value: "", Group: "card", Label: "开卡 API 密钥", Type: "password"},

		// Stripe group
		{Key: "stripe.build_hash", Value: "ede17ac9fd", Group: "stripe", Label: "Build Hash", Type: "string"},
		{Key: "stripe.tag_version", Value: "4.5.43", Group: "stripe", Label: "Tag Version", Type: "string"},
		{Key: "stripe.fingerprint_dir", Value: "./fingerprints", Group: "stripe", Label: "指纹目录", Type: "string"},

		// Captcha group
		{Key: "captcha.provider", Value: "hcaptchasolver", Group: "captcha", Label: "验证码提供商", Type: "string"},
		{Key: "captcha.api_key", Value: "Kenzx_4ba2535aaf33bd1238345f795a085853ace94e54ade70a2a", Group: "captcha", Label: "验证码 API Key", Type: "password"},
		{Key: "captcha.proxy", Value: "", Group: "captcha", Label: "验证码代理", Type: "string"},

		// Account group
		{Key: "account.password_length", Value: "16", Group: "account", Label: "密码长度", Type: "int"},
		{Key: "account.locale", Value: "en-GB", Group: "account", Label: "区域设置", Type: "string"},

		// Team group
		{Key: "team.enabled", Value: "true", Group: "team", Label: "启用 Team", Type: "bool"},
		{Key: "team.workspace_prefix", Value: "Team", Group: "team", Label: "工作区前缀", Type: "string"},
		{Key: "team.seat_quantity", Value: "5", Group: "team", Label: "座位数", Type: "int"},
		{Key: "team.coupon", Value: "team-1-month-free", Group: "team", Label: "优惠券", Type: "string"},
		{Key: "team.invite_count", Value: "0", Group: "team", Label: "邀请人数", Type: "int"},

		// CPA (CLI Proxy API) group
		{Key: "cpa.base_url", Value: "http://127.0.0.1:8317", Group: "cpa", Label: "CPA 地址", Type: "string"},
		{Key: "cpa.management_key", Value: "gptplus2026", Group: "cpa", Label: "Management Key", Type: "password"},
	}

	d := db.GetDB()
	for _, cfg := range defaults {
		var existing db.SystemConfig
		res := d.Where("key = ?", cfg.Key).First(&existing)
		if res.Error != nil {
			d.Create(&cfg)
		} else if existing.Value == "" && cfg.Value != "" {
			d.Model(&existing).Updates(map[string]interface{}{
				"value": cfg.Value,
				"label": cfg.Label,
				"type":  cfg.Type,
			})
		}
	}
}