package controller

import (
	"cms-api/internal/model"
	"cms-api/internal/service"

	"github.com/gogf/gf/v2/net/ghttp"
	"github.com/gogf/gf/v2/util/gconv"
)

// 新闻控制器
type cNews struct{}

var News = &cNews{}

// List 获取新闻列表（公开接口）
func (c *cNews) List(r *ghttp.Request) {
	var req *model.NewsListRequest
	if err := r.Parse(&req); err != nil {
		r.Response.WriteJson(&model.Response{Code: 400, Message: "参数解析失败", Data: err.Error()})
		return
	}

	// 调用新闻服务获取列表
	newsService := service.News()
	result, err := newsService.List(r.Context(), req)
	if err != nil {
		r.Response.WriteJson(&model.Response{Code: 500, Message: "获取新闻列表失败", Data: err.Error()})
		return
	}

	r.Response.WriteJson(&model.Response{Code: 200, Message: "获取成功", Data: result})
}

// AdminList 获取新闻列表（管理后台）
func (c *cNews) AdminList(r *ghttp.Request) {
	var req *model.NewsListRequest
	if err := r.Parse(&req); err != nil {
		r.Response.WriteJson(&model.Response{Code: 400, Message: "参数解析失败", Data: err.Error()})
		return
	}

	// 调用新闻服务获取列表（暂时使用相同方法）
	newsService := service.News()
	result, err := newsService.List(r.Context(), req)
	if err != nil {
		r.Response.WriteJson(&model.Response{Code: 500, Message: "获取新闻列表失败", Data: err.Error()})
		return
	}

	r.Response.WriteJson(&model.Response{Code: 200, Message: "获取成功", Data: result})
}

// Create 创建新闻
func (c *cNews) Create(r *ghttp.Request) {
	r.Response.WriteJson(&model.Response{Code: 200, Message: "功能开发中"})
}

// Detail 获取新闻详情（公开接口）
func (c *cNews) Detail(r *ghttp.Request) {
	id := gconv.Int(r.Get("id"))
	slug := gconv.String(r.Get("slug"))

	if id <= 0 && slug == "" {
		r.Response.WriteJson(&model.Response{Code: 400, Message: "新闻ID或别名无效"})
		return
	}

	// 调用新闻服务获取详情
	newsService := service.News()
	var result *model.News
	var err error

	if id > 0 {
		result, err = newsService.GetById(r.Context(), id)
	} else {
		result, err = newsService.GetBySlug(r.Context(), slug)
	}

	if err != nil {
		r.Response.WriteJson(&model.Response{Code: 500, Message: "获取新闻详情失败", Data: err.Error()})
		return
	}

	if result == nil {
		r.Response.WriteJson(&model.Response{Code: 404, Message: "新闻不存在"})
		return
	}

	r.Response.WriteJson(&model.Response{Code: 200, Message: "获取成功", Data: result})
}

// AdminDetail 获取新闻详情（管理后台）
func (c *cNews) AdminDetail(r *ghttp.Request) {
	id := gconv.Int(r.Get("id"))
	if id <= 0 {
		r.Response.WriteJson(&model.Response{Code: 400, Message: "新闻ID无效"})
		return
	}

	// 调用新闻服务获取管理后台详情
	newsService := service.News()
	result, err := newsService.GetById(r.Context(), id)
	if err != nil {
		r.Response.WriteJson(&model.Response{Code: 500, Message: "获取新闻详情失败", Data: err.Error()})
		return
	}

	if result == nil {
		r.Response.WriteJson(&model.Response{Code: 404, Message: "新闻不存在"})
		return
	}

	r.Response.WriteJson(&model.Response{Code: 200, Message: "获取成功", Data: result})
}

// Update 更新新闻
func (c *cNews) Update(r *ghttp.Request) {
	id := gconv.Int(r.Get("id"))
	if id <= 0 {
		r.Response.WriteJson(&model.Response{Code: 400, Message: "新闻ID无效"})
		return
	}

	var req *model.UpdateNewsRequest
	if err := r.Parse(&req); err != nil {
		r.Response.WriteJson(&model.Response{Code: 400, Message: "参数解析失败", Data: err.Error()})
		return
	}

	// 调用新闻服务更新新闻
	newsService := service.News()
	err := newsService.Update(r.Context(), id, req)
	if err != nil {
		r.Response.WriteJson(&model.Response{Code: 500, Message: "更新新闻失败", Data: err.Error()})
		return
	}

	r.Response.WriteJson(&model.Response{Code: 200, Message: "更新新闻成功"})
}

// Delete 删除新闻
func (c *cNews) Delete(r *ghttp.Request) {
	id := gconv.Int(r.Get("id"))
	if id <= 0 {
		r.Response.WriteJson(&model.Response{Code: 400, Message: "新闻ID无效"})
		return
	}

	// 调用新闻服务删除新闻
	newsService := service.News()
	err := newsService.Delete(r.Context(), id)
	if err != nil {
		r.Response.WriteJson(&model.Response{Code: 500, Message: "删除新闻失败", Data: err.Error()})
		return
	}

	r.Response.WriteJson(&model.Response{Code: 200, Message: "删除新闻成功"})
}