package admin

import (
	"strconv"

	"github.com/gofiber/fiber/v2"

	"github.com/break/junhong_cmp_fiber/internal/model/dto"
	grantService "github.com/break/junhong_cmp_fiber/internal/service/shop_series_grant"
	"github.com/break/junhong_cmp_fiber/pkg/errors"
	"github.com/break/junhong_cmp_fiber/pkg/response"
)

// ShopSeriesGrantHandler 代理系列授权 Handler
type ShopSeriesGrantHandler struct {
	service *grantService.Service
}

// NewShopSeriesGrantHandler 创建代理系列授权 Handler
func NewShopSeriesGrantHandler(service *grantService.Service) *ShopSeriesGrantHandler {
	return &ShopSeriesGrantHandler{service: service}
}

// Create 创建系列授权
// POST /api/admin/shop-series-grants
func (h *ShopSeriesGrantHandler) Create(c *fiber.Ctx) error {
	var req dto.CreateShopSeriesGrantRequest
	if err := c.BodyParser(&req); err != nil {
		return errors.New(errors.CodeInvalidParam, "请求参数解析失败")
	}
	req.ExpiryBaseOverrideSet = hasJSONField(c.Body(), "expiry_base_override")

	result, err := h.service.Create(c.UserContext(), &req)
	if err != nil {
		return err
	}

	return response.Success(c, result)
}

// List 查询系列授权列表
// GET /api/admin/shop-series-grants
func (h *ShopSeriesGrantHandler) List(c *fiber.Ctx) error {
	var req dto.ShopSeriesGrantListRequest
	if err := c.QueryParser(&req); err != nil {
		return errors.New(errors.CodeInvalidParam, "请求参数解析失败")
	}

	result, err := h.service.List(c.UserContext(), &req)
	if err != nil {
		return err
	}

	return response.SuccessWithPagination(c, result.List, result.Total, result.Page, result.PageSize)
}

// Get 查询系列授权详情
// GET /api/admin/shop-series-grants/:id
func (h *ShopSeriesGrantHandler) Get(c *fiber.Ctx) error {
	idStr := c.Params("id")
	id, err := strconv.ParseUint(idStr, 10, 64)
	if err != nil {
		return errors.New(errors.CodeInvalidParam, "无效的授权ID")
	}

	result, err := h.service.Get(c.UserContext(), uint(id))
	if err != nil {
		return err
	}

	return response.Success(c, result)
}

// Update 更新系列授权
// PUT /api/admin/shop-series-grants/:id
func (h *ShopSeriesGrantHandler) Update(c *fiber.Ctx) error {
	idStr := c.Params("id")
	id, err := strconv.ParseUint(idStr, 10, 64)
	if err != nil {
		return errors.New(errors.CodeInvalidParam, "无效的授权ID")
	}

	var req dto.UpdateShopSeriesGrantRequest
	if err := c.BodyParser(&req); err != nil {
		return errors.New(errors.CodeInvalidParam, "请求参数解析失败")
	}
	result, err := h.service.Update(c.UserContext(), uint(id), &req)
	if err != nil {
		return err
	}

	return response.Success(c, result)
}

// ManagePackages 管理授权套餐
// PUT /api/admin/shop-series-grants/:id/packages
func (h *ShopSeriesGrantHandler) ManagePackages(c *fiber.Ctx) error {
	idStr := c.Params("id")
	id, err := strconv.ParseUint(idStr, 10, 64)
	if err != nil {
		return errors.New(errors.CodeInvalidParam, "无效的授权ID")
	}

	var req dto.ManageGrantPackagesRequest
	if err := c.BodyParser(&req); err != nil {
		return errors.New(errors.CodeInvalidParam, "请求参数解析失败")
	}
	req.ExpiryBaseOverrideSet = hasJSONField(c.Body(), "expiry_base_override")

	result, err := h.service.ManagePackages(c.UserContext(), uint(id), &req)
	if err != nil {
		return err
	}

	return response.Success(c, result)
}

// Delete 删除系列授权
// DELETE /api/admin/shop-series-grants/:id
func (h *ShopSeriesGrantHandler) Delete(c *fiber.Ctx) error {
	idStr := c.Params("id")
	id, err := strconv.ParseUint(idStr, 10, 64)
	if err != nil {
		return errors.New(errors.CodeInvalidParam, "无效的授权ID")
	}

	if err := h.service.Delete(c.UserContext(), uint(id)); err != nil {
		return err
	}

	return response.Success(c, nil)
}
