package main

import (
	"fmt"
	"time"
)

type commandFunction func(*openIDSessionData, InWechatMsg) bool

var commandMap = map[string]commandFunction{
	"版本信息":    cmdVersion,
	"version": cmdVersion,
	//"所有命令": allCommand, //include it  will cause initialization loop
	"echo": cmdEcho,
	"回音":   cmdEcho,
}

func (ss *openIDSessionData) serveCommand(in InWechatMsg) (processed bool) {
	if in.header.MsgType == "text" {
		cmd := in.body.(TextMsg).Content
		if f, hasFunction := commandMap[cmd]; hasFunction {
			return f(ss, in)
		}
		if cmd == "所有命令" || cmd == "all command" {
			return allCommand(ss, in)
		}
	}
	processed = false
	return
}

func allCommand(ss *openIDSessionData, in InWechatMsg) (processed bool) {
	processed = true
	msg := "命令如下:\n"
	count := 0
	for k := range commandMap {
		count++
		msg = msg + fmt.Sprintf("%0d : %s \n", count, k)
	}

	str, _ := BuildTextMsg(in.header.FromUserName, msg)
	in.immediateResponse(str)
	return
}

func cmdVersion(ss *openIDSessionData, in InWechatMsg) (processed bool) {
	processed = true
	str, _ := BuildTextMsg(in.header.FromUserName, "这是测试版本"+time.Now().Format("2006/01/02 03:04:05"))
	in.immediateResponse(str)
	return
}

func cmdEcho(ss *openIDSessionData, in InWechatMsg) (processed bool) {
	in.immediateResponse("请输入不同类型的微信信息，比如文字，图片，视频，地址，链接，我们将原样回应您")
	procEcho.init(ss)
	procEcho.start(ss, in)
	return
}