package new_user_red_package

import (
	"fmt"
	"math/rand"
	"testing"
	"time"
)

func TestDistributeRedPacket(t *testing.T) {
	// 初始化随机数种子
	rand.Seed(time.Now().UnixNano())
	// 定义测试用例
	testCases := []struct {
		amount      float64
		days        int
		userChoices []bool // 每天用户是否选择翻倍
	}{
		{
			amount:      10.0,
			days:        5,
			userChoices: []bool{true, false, true, false, false},
		},
		{
			amount:      20.0,
			days:        7,
			userChoices: []bool{true, true, false, false, true, false, false},
		},
	}

	// 运行测试用例
	for _, tc := range testCases {
		runTest(tc.amount, tc.days, tc.userChoices)
	}
}

// runTest 运行测试用例
func runTest(totalAmount float64, totalDays int, userChoices []bool) {
	fmt.Printf("\n测试: %.2f元 / %d天\n", totalAmount, totalDays)
	fmt.Printf("每日平均金额: %.2f元\n", totalAmount/float64(totalDays))
	fmt.Println("----------------------------------------")

	distributor := NewRedPacketDistributorForTest(totalAmount, totalDays)
	var totalDistributed float64

	for day := 1; day <= totalDays; day++ {
		// 获取用户选择
		userChoice := false
		if day <= len(userChoices) {
			userChoice = userChoices[day-1]
		}

		// 分发红包并打印结果
		packet, err := distributor.DistributeRedPacket(day, userChoice)
		if err != nil {
			println("err:::", err.Error())
			break
		}
		totalDistributed += packet.FinalAmount
		fmt.Println(formatRedPacketInfo(packet))
	}

	// 打印总结信息
	fmt.Println("----------------------------------------")
	fmt.Printf("总计分发: %.2f 元\n", totalDistributed)
	fmt.Printf("剩余金额: %.2f 元\n", distributor.RemainAmount)
}