package controller

import (
	"fmt"
	"github.com/gin-gonic/gin"
	"strconv"
	"vote-admin-api/api/dao"
	"vote-admin-api/api/dto"
	"vote-admin-api/api/model"
	"vote-admin-api/api/requests"
	"vote-admin-api/api/responses"
	"vote-admin-api/global"
	"vote-admin-api/utils"
)

type Article struct{}

// GetArticlePage 获取图文列表-分页
func (r *Article) GetArticlePage(c *gin.Context) {
	articleRequest := requests.ArticleRequest{}
	req := articleRequest.GetArticlePage
	if err := c.ShouldBindJSON(&req); err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 参数验证
	if err := global.Validate.Struct(req); err != nil {
		responses.FailWithMessage(utils.Translate(err), c)
		return
	}

	if req.Page == 0 {
		req.Page = 1
	}

	if req.PageSize == 0 {
		req.PageSize = 20
	}

	if req.Order != nil {
		if req.Order.VoteNum != "" {
			if req.Order.VoteNum != "desc" && req.Order.VoteNum != "asc" {
				responses.FailWithMessage("排序字段错误", c)
				return
			}
		}
	}

	// 获取数据
	articleDao := dao.ArticleDao{}
	articles, total, err := articleDao.GetArticlePageSearch(req, req.Page, req.PageSize)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 处理返回值
	g := dto.GetArticleListDto(articles)

	result := make(map[string]interface{})
	result["page"] = req.Page
	result["page_size"] = req.PageSize
	result["total"] = total
	result["data"] = g
	responses.OkWithData(result, c)
}

// GetArticle 获取图文详情
func (r *Article) GetArticle(c *gin.Context) {
	id := c.Param("article_id")
	if id == "" {
		responses.FailWithMessage("缺少参数", c)
		return
	}

	// 将 id 转换为 int64 类型
	articleId, err := strconv.ParseInt(id, 10, 64)
	if err != nil {
		responses.Fail(c)
		return
	}

	// 获取数据
	articleDao := dao.ArticleDao{}
	article, err := articleDao.GetArticleById(articleId)
	if err != nil {
		responses.FailWithMessage("文章错误", c)
		return
	}

	// 获取作者数据
	articleAuthorDao := dao.ArticleAuthorDao{}
	maps := make(map[string]interface{})
	maps["article_id"] = articleId
	articleAuthors, err := articleAuthorDao.GetArticleAuthorPreloadList(maps)
	if err != nil {
		responses.FailWithMessage("文章错误", c)
		return
	}

	// 获取排名
	rank, _ := articleDao.GetArticleRank(article.ArticleId)

	// 处理返回值
	g := dto.GetArticleDto(article)

	// 加载数据-作者
	g.LoadArticleAuthor(articleAuthors)

	// 加载数据-作者排名
	g.LoadRank(rank)

	responses.OkWithData(g, c)
}

// PutArticle 修改图文详情
func (r *Article) PutArticle(c *gin.Context) {
	articleRequest := requests.ArticleRequest{}
	req := articleRequest.PutArticle
	if err := c.ShouldBindJSON(&req); err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 参数验证
	if err := global.Validate.Struct(req); err != nil {
		responses.FailWithMessage(utils.Translate(err), c)
		return
	}

	id := c.Param("article_id")
	if id == "" {
		responses.FailWithMessage("缺少参数", c)
		return
	}

	// 将 id 转换为 int64 类型
	articleId, err := strconv.ParseInt(id, 10, 64)
	if err != nil {
		responses.Fail(c)
		return
	}

	if req.VoteNum < 0 {
		responses.FailWithMessage("票数需大于0", c)
		return
	}

	// 获取订单数据
	articleDao := dao.ArticleDao{}
	article, err := articleDao.GetArticleById(articleId)
	if err != nil {
		responses.FailWithMessage("图文异常", c)
		return
	}

	// 开始事务
	tx := global.Db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
			fmt.Println(r)
		}
	}()

	articleData := make(map[string]interface{})

	// 文章标题
	if article.ArticleTitle != req.ArticleTitle {
		articleData["article_title"] = req.ArticleTitle
	}

	// 文章状态
	if article.ArticleStatus != req.ArticleStatus {
		articleData["article_status"] = req.ArticleStatus
	}

	// 文章内容
	if article.ArticleContent != req.ArticleContent {
		articleData["article_content"] = req.ArticleContent
	}

	// 票数
	if article.VoteNum != req.VoteNum {
		articleData["vote_num"] = req.VoteNum
	}

	// 修改
	if len(articleData) > 0 {
		err = articleDao.EditArticleById(tx, articleId, articleData)
		if err != nil {
			tx.Rollback()
			responses.FailWithMessage(err.Error(), c)
			return
		}
	}

	// 删除作者
	articleAuthorDao := dao.ArticleAuthorDao{}
	maps := make(map[string]interface{})
	maps["article_id"] = articleId
	err = articleAuthorDao.DeleteArticleAuthor(tx, maps)
	if err != nil {
		tx.Rollback()
		responses.FailWithMessage(err.Error(), c)
		return
	}

	baseHospitalDao := dao.BaseHospitalDao{}
	// 新增作者
	for _, author := range req.ArticleAuthor {
		if author.HospitalId == "" {
			tx.Rollback()
			responses.FailWithMessage("请选择作者所属医院", c)
			return
		}

		if author.AuthorName == "" {
			tx.Rollback()
			responses.FailWithMessage("请输入作者名称", c)
			return
		}

		// 检测医院
		hospitalId, err := strconv.ParseInt(author.HospitalId, 10, 64)
		if err != nil {
			tx.Rollback()
			responses.FailWithMessage(err.Error(), c)
			return
		}

		baseHospital, err := baseHospitalDao.GetBaseHospitalById(hospitalId)
		if err != nil || baseHospital == nil {
			tx.Rollback()
			responses.FailWithMessage("医院错误", c)
			return
		}

		ArticleAuthor := &model.ArticleAuthor{
			ArticleId:  articleId,
			AuthorName: author.AuthorName,
			HospitalId: hospitalId,
		}
		ArticleAuthor, err = articleAuthorDao.AddArticleAuthor(tx, ArticleAuthor)
		if err != nil {
			tx.Rollback()
			responses.FailWithMessage(err.Error(), c)
			return
		}
	}

	tx.Commit()
	responses.Ok(c)
}

// AddArticle 新增图文详情
func (r *Article) AddArticle(c *gin.Context) {
	articleRequest := requests.ArticleRequest{}
	req := articleRequest.AddArticle
	if err := c.ShouldBindJSON(&req); err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 参数验证
	if err := global.Validate.Struct(req); err != nil {
		responses.FailWithMessage(utils.Translate(err), c)
		return
	}

	if req.VoteNum < 0 {
		responses.FailWithMessage("票数需大于0", c)
		return
	}

	// 开始事务
	tx := global.Db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
			responses.FailWithMessage("操作失败", c)
			return
		}
	}()

	article := &model.Article{
		ArticleTitle:   req.ArticleTitle,
		ArticleStatus:  req.ArticleStatus,
		VoteNum:        req.VoteNum,
		ArticleContent: req.ArticleContent,
	}

	articleDao := dao.ArticleDao{}
	article, err := articleDao.AddArticle(tx, article)
	if err != nil {
		tx.Rollback()
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 新增作者
	baseHospitalDao := dao.BaseHospitalDao{}
	articleAuthorDao := dao.ArticleAuthorDao{}
	for _, author := range req.ArticleAuthor {
		if author.HospitalId == "" {
			tx.Rollback()
			responses.FailWithMessage("请选择作者所属医院", c)
			return
		}

		if author.AuthorName == "" {
			tx.Rollback()
			responses.FailWithMessage("请输入作者名称", c)
			return
		}

		// 检测医院
		hospitalId, err := strconv.ParseInt(author.HospitalId, 10, 64)
		if err != nil {
			tx.Rollback()
			responses.FailWithMessage(err.Error(), c)
			return
		}

		baseHospital, err := baseHospitalDao.GetBaseHospitalById(hospitalId)
		if err != nil || baseHospital == nil {
			tx.Rollback()
			responses.FailWithMessage("医院错误", c)
			return
		}

		ArticleAuthor := &model.ArticleAuthor{
			ArticleId:  article.ArticleId,
			AuthorName: author.AuthorName,
			HospitalId: hospitalId,
		}
		ArticleAuthor, err = articleAuthorDao.AddArticleAuthor(tx, ArticleAuthor)
		if err != nil {
			tx.Rollback()
			responses.FailWithMessage(err.Error(), c)
			return
		}
	}

	tx.Commit()
	responses.Ok(c)
}