package handlers

import (
	"errors"
	"platform/pkg/env"
	"platform/web/auth"
	"platform/web/services"
	s "platform/web/services"
	"regexp"
	"strconv"

	"github.com/gofiber/fiber/v2"
	"github.com/redis/go-redis/v9"
)

type VerifierReq struct {
	Purpose s.VerifierSmsPurpose `json:"purpose"`
	Phone   string               `json:"phone"`
}

func SendSmsCode(c *fiber.Ctx) error {
	_, err := auth.GetAuthCtx(c).PermitOfficialClient()
	if err != nil {
		return err
	}

	// 解析请求参数
	req := new(VerifierReq)
	if err := c.BodyParser(req); err != nil {
		return err
	}
	match, err := regexp.MatchString(`^1[3-9]\d{9}$`, req.Phone)
	if err != nil {
		return err
	}
	if !match {
		return fiber.NewError(fiber.StatusBadRequest, "手机号格式错误")
	}

	// 发送身份验证码
	err = s.Verifier.SendSms(c.Context(), req.Phone, req.Purpose)
	if err != nil {
		var sErr s.VerifierServiceSendLimitErr
		if errors.As(err, &sErr) {
			return fiber.NewError(fiber.StatusTooManyRequests, strconv.Itoa(int(sErr)))
		}
		return err
	}

	// 发送成功
	return nil
}

func SendSmsCodeForPassword(c *fiber.Ctx) error {
	ac, err := auth.GetAuthCtx(c).PermitUser()
	if err != nil {
		return err
	}

	if err := s.Verifier.SendSms(c.Context(), ac.User.Phone, s.VerifierSmsPurposePassword); err != nil {
		var sErr s.VerifierServiceSendLimitErr
		if errors.As(err, &sErr) {
			return fiber.NewError(fiber.StatusTooManyRequests, strconv.Itoa(int(sErr)))
		}
		return err
	}

	return nil
}

func DebugGetSmsCode(c *fiber.Ctx) error {
	if env.RunMode != env.RunModeDev {
		return fiber.NewError(fiber.StatusForbidden, "not allowed")
	}

	code, err := services.Verifier.GetSms(c.Context(), c.Params("phone"))
	if err != nil {
		if errors.Is(err, redis.Nil) {
			return c.SendString("还没有验证码")
		}
		return err
	}

	return c.SendString(code)
}