package model

import (
	"time"

	"gorm.io/datatypes"
)

// Setting stores system configuration as key-value pairs with JSON values.
type Setting struct {
	ID        uint           `gorm:"primaryKey;autoIncrement" json:"id"`
	Key       string         `gorm:"uniqueIndex;size:100;not null" json:"key"`
	Value     datatypes.JSON `gorm:"type:json;not null" json:"value"`
	UpdatedAt time.Time      `json:"updated_at"`
}

// APIKeysConfig stores third-party API keys under the "api_keys" setting key.
type APIKeysConfig struct {
	SerperAPIKey string `json:"serper_api_key"`
	LLMProvider  string `json:"llm_provider"`
	LLMBaseURL   string `json:"llm_base_url"`
	LLMAPIKey    string `json:"llm_api_key"`
	LLMModel     string `json:"llm_model"`
	GitHubToken  string `json:"github_token"`
}

// GradingConfig is the structure stored under the "grading" setting key.
type GradingConfig struct {
	Levels          []LevelDef        `json:"levels"`
	IndustryKeywords map[string][]string `json:"industry_keywords"`
}

// LevelDef defines a single merchant grade level.
type LevelDef struct {
	Key         string     `json:"key"`          // internal key: e.g. "Hot"
	Label       string     `json:"label"`        // display label: e.g. "优质商户"
	Color       string     `json:"color"`        // display color: e.g. "red"
	Description string     `json:"description"`  // explain what this level means
	Rules       []GradeRule `json:"rules"`       // any rule match → this level (OR logic)
}

// GradeRule defines one condition that qualifies a merchant for a level.
// All non-empty fields within a rule must ALL match (AND logic).
type GradeRule struct {
	HasIndustry    *bool `json:"has_industry,omitempty"`     // must have industry tag
	HasWebsite     *bool `json:"has_website,omitempty"`      // must have website
	HasEmail       *bool `json:"has_email,omitempty"`        // must have email
	HasPhone       *bool `json:"has_phone,omitempty"`        // must have phone
	MinSourceCount *int  `json:"min_source_count,omitempty"` // minimum source count
}

// DefaultGradingConfig returns the built-in default grading configuration.
func DefaultGradingConfig() GradingConfig {
	boolTrue := true
	minSrc2 := 2
	return GradingConfig{
		Levels: []LevelDef{
			{
				Key:         "Hot",
				Label:       "优质商户",
				Color:       "red",
				Description: "有行业标签 + 有网站或邮箱，或有行业标签 + 多来源/有电话",
				Rules: []GradeRule{
					{HasIndustry: &boolTrue, HasWebsite: &boolTrue},
					{HasIndustry: &boolTrue, HasEmail: &boolTrue},
					{HasIndustry: &boolTrue, HasPhone: &boolTrue},
					{HasIndustry: &boolTrue, MinSourceCount: &minSrc2},
				},
			},
			{
				Key:         "Warm",
				Label:       "普通商户",
				Color:       "orange",
				Description: "有行业标签，或有网站/邮箱/电话等联系方式",
				Rules: []GradeRule{
					{HasIndustry: &boolTrue},
					{HasWebsite: &boolTrue, MinSourceCount: &minSrc2},
					{HasWebsite: &boolTrue},
					{HasEmail: &boolTrue},
					{HasPhone: &boolTrue},
				},
			},
			{
				Key:         "Cold",
				Label:       "待跟进",
				Color:       "blue",
				Description: "仅有TG用户名，缺少其他联系方式和行业信息",
				Rules:       []GradeRule{}, // default fallback
			},
		},
		IndustryKeywords: map[string][]string{
			"机场": {"机场", "节点", "订阅", "clash", "v2ray", "trojan", "shadowsocks", "ss/ssr", "翻墙", "梯子", "科学上网", "加速器", "proxy", "代理", "xray", "hysteria", "surge", "quantumult", "shadowrocket", "小火箭"},
			"VPN":  {"vpn", "wireguard", "openvpn", "expressvpn", "nordvpn"},
			"交易所": {"交易所", "exchange", "otc", "usdt", "btc", "eth", "加密货币", "数字货币", "币", "crypto", "binance", "okx"},
			"支付":  {"支付", "payment", "收款", "代收", "代付", "换汇", "承兑", "跑分", "三方支付", "四方支付"},
			"博彩":  {"博彩", "棋牌", "彩票", "赌", "百家乐", "龙虎", "六合彩", "时时彩", "体育投注"},
			"引流":  {"引流", "推广", "广告", "拉人", "涨粉", "群发", "营销", "seo", "流量"},
			"开发":  {"开发", "定制", "搭建", "源码", "app开发", "网站建设", "小程序", "h5", "二开"},
		},
	}
}