package services

import (
	"server/models"
	"time"

	"github.com/beego/beego/v2/client/orm"
)

// GetArticlesList 获取文章列表
func GetArticlesList(tenant_id int, user_id int, page, pageSize int, keyword string, cate int, status int8) ([]*models.Articles, int64, error) {
	o := orm.NewOrm()

	qs := o.QueryTable(new(models.Articles))

	// 过滤已删除的文章
	qs = qs.Filter("delete_time__isnull", true)

	// 关键词搜索
	if keyword != "" {
		cond := orm.NewCondition()
		cond1 := cond.Or("title__icontains", keyword).Or("content__icontains", keyword).Or("desc__icontains", keyword)
		qs = qs.SetCond(cond1)
	}

	// 分类筛选
	if cate > 0 {
		qs = qs.Filter("cate", cate)
	}

	// 状态筛选
	if status >= 0 {
		qs = qs.Filter("status", status)
	}

	// 获取总数
	total, err := qs.Count()
	if err != nil {
		return nil, 0, err
	}

	// 分页查询
	if page <= 0 {
		page = 1
	}
	if pageSize <= 0 {
		pageSize = 10
	}
	offset := (page - 1) * pageSize

	var articles []*models.Articles
	_, err = qs.OrderBy("-create_time").Limit(pageSize, offset).All(&articles)

	return articles, total, err
}

// GetArticleById 根据ID获取文章
func GetArticleById(id int) (*models.Articles, error) {
	o := orm.NewOrm()

	article := &models.Articles{Id: id}
	err := o.Read(article)
	if err != nil {
		return nil, err
	}

	// 检查是否已删除
	if article.DeleteTime != nil {
		return nil, nil // 返回nil表示文章不存在或已删除
	}

	return article, nil
}

// CreateArticle 创建文章
func CreateArticle(article *models.Articles) (*models.Articles, error) {
	o := orm.NewOrm()

	id, err := o.Insert(article)
	if err != nil {
		return nil, err
	}

	// 获取创建后的文章
	article.Id = int(id)
	return article, nil
}

// UpdateArticle 更新文章
func UpdateArticle(article *models.Articles) error {
	o := orm.NewOrm()

	_, err := o.Update(article, "title", "cate", "image", "desc", "author", "content", "publisher", "publishdate", "sort", "status", "is_trans", "transurl", "push", "update_time")
	return err
}

// DeleteArticle 删除文章（软删除）
func DeleteArticle(id int) error {
	o := orm.NewOrm()

	// 获取文章
	article := &models.Articles{Id: id}
	err := o.Read(article)
	if err != nil {
		return err
	}

	// 设置删除时间
	now := time.Now()
	article.DeleteTime = &now

	_, err = o.Update(article, "delete_time")
	return err
}

// UpdateArticleStatus 更新文章状态
func UpdateArticleStatus(id int, status int8) error {
	o := orm.NewOrm()

	article := &models.Articles{Id: id}
	err := o.Read(article)
	if err != nil {
		return err
	}

	article.Status = status
	now := time.Now()
	article.UpdateTime = &now

	_, err = o.Update(article, "status", "update_time")
	return err
}

// IncrementArticleViews 增加文章浏览量
func IncrementArticleViews(id int) error {
	o := orm.NewOrm()

	article := &models.Articles{Id: id}
	err := o.Read(article)
	if err != nil {
		return err
	}

	article.Views++
	now := time.Now()
	article.UpdateTime = &now

	_, err = o.Update(article, "views", "update_time")
	return err
}

// IncrementArticleLikes 增加文章点赞量
func IncrementArticleLikes(id int) error {
	o := orm.NewOrm()

	article := &models.Articles{Id: id}
	err := o.Read(article)
	if err != nil {
		return err
	}

	article.Likes++
	now := time.Now()
	article.UpdateTime = &now

	_, err = o.Update(article, "likes", "update_time")
	return err
}

// GetPublishedArticles 获取已发布的文章列表（用于前台展示）
func GetPublishedArticles(page, pageSize int, cate int) ([]*models.Articles, int64, error) {
	return GetArticlesList(0, 0, page, pageSize, "", cate, 2) // status=2 表示已发布，tenant_id=0, user_id=0
}

// GetArticleStats 获取文章统计信息
func GetArticleStats() (map[string]int64, error) {
	o := orm.NewOrm()

	stats := make(map[string]int64)

	// 总文章数
	total, err := o.QueryTable(new(models.Articles)).Filter("delete_time__isnull", true).Count()
	if err != nil {
		return nil, err
	}
	stats["total"] = total

	// 草稿数
	draft, err := o.QueryTable(new(models.Articles)).Filter("delete_time__isnull", true).Filter("status", 0).Count()
	if err != nil {
		return nil, err
	}
	stats["draft"] = draft

	// 待审核数
	pending, err := o.QueryTable(new(models.Articles)).Filter("delete_time__isnull", true).Filter("status", 1).Count()
	if err != nil {
		return nil, err
	}
	stats["pending"] = pending

	// 已发布数
	published, err := o.QueryTable(new(models.Articles)).Filter("delete_time__isnull", true).Filter("status", 2).Count()
	if err != nil {
		return nil, err
	}
	stats["published"] = published

	// 隐藏数
	hidden, err := o.QueryTable(new(models.Articles)).Filter("delete_time__isnull", true).Filter("status", 3).Count()
	if err != nil {
		return nil, err
	}
	stats["hidden"] = hidden

	return stats, nil
}