package config

import (
	"context"
	"sync"

	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/glog"
)

var (
	welcomeCache map[string]string
	welcomeMu    sync.RWMutex
	welcomeOnce  sync.Once
)

// initWelcomeMessages 初始化欢迎话术配置
func initWelcomeMessages(ctx context.Context) {
	welcomeOnce.Do(func() {
		// 从默认配置文件（config.yml）读取 welcomes 配置
		welcomeMap := g.Cfg().MustGet(ctx, "welcomes").MapStrStr()

		welcomeMu.Lock()
		welcomeCache = welcomeMap
		welcomeMu.Unlock()

		glog.Infof(ctx, "已加载欢迎话术配置: %d个方向", len(welcomeMap))
	})
}

// GetWelcomeMessage 根据方向名称获取欢迎话术
func GetWelcomeMessage(direction string) string {
	ctx := context.Background()
	initWelcomeMessages(ctx)

	welcomeMu.RLock()
	defer welcomeMu.RUnlock()

	return welcomeCache[direction]
}