package app

import (
	"github.com/go-playground/validator/v10"
	"github.com/gofiber/fiber/v2"

	distributionapp "github.com/break/junhong_cmp_fiber/internal/application/distributionwithdrawal"
	distributiondomain "github.com/break/junhong_cmp_fiber/internal/domain/distribution"
	"github.com/break/junhong_cmp_fiber/internal/model/dto"
	"github.com/break/junhong_cmp_fiber/pkg/constants"
	"github.com/break/junhong_cmp_fiber/pkg/errors"
	"github.com/break/junhong_cmp_fiber/pkg/response"
)

// AgentDistributionHandler 代理分销扫码注册公开 Handler。
type AgentDistributionHandler struct {
	service   *distributionapp.RegistrationService
	validator *validator.Validate
}

// NewAgentDistributionHandler 创建代理分销扫码注册公开 Handler。
func NewAgentDistributionHandler(
	service *distributionapp.RegistrationService,
	validate *validator.Validate,
) *AgentDistributionHandler {
	return &AgentDistributionHandler{service: service, validator: validate}
}

// RegisterAgentDistribution 提交代理扫码注册
// POST /api/c/v1/agent-distribution-registrations
// 无需认证、JWT、角色或权限；只创建待审批注册记录，不返回任何账号凭证。
// 无效分销码、停用上级、验证码无效或已消费统一返回“分销码不可用”且不落库。
func (h *AgentDistributionHandler) RegisterAgentDistribution(c *fiber.Ctx) error {
	if h.service == nil {
		return errors.New(errors.CodeServiceUnavailable, "代理分销注册能力尚未配置")
	}
	var req dto.CreateAgentDistributionRegistrationReq
	if err := c.BodyParser(&req); err != nil {
		return errors.New(errors.CodeInvalidParam, "请求参数解析失败")
	}
	if h.validator == nil {
		return errors.New(errors.CodeInternalError, "代理分销注册校验器未配置")
	}
	if err := h.validator.Struct(&req); err != nil {
		return errors.New(errors.CodeInvalidParam, "注册参数不合法")
	}
	result, err := h.service.Register(c.UserContext(), distributiondomain.RegistrationInput{
		DistributionCode: req.DistributionCode,
		Phone:            req.Phone,
		Username:         req.Username,
		Password:         req.Password,
		ShopName:         req.ShopName,
		ShopCode:         req.ShopCode,
		ContactName:      req.ContactName,
		Province:         req.Province,
		City:             req.City,
		District:         req.District,
		Address:          req.Address,
	}, req.Code)
	if err != nil {
		return err
	}
	return response.Success(c, &dto.CreateAgentDistributionRegistrationResp{
		ID:         result.RegistrationID,
		Status:     result.Status,
		StatusName: constants.GetAgentDistributionRegistrationStatusName(result.Status),
	})
}