package logic

import (
	"context"

	plantModel "sundynix-micro-go/app/plant/model"
	"sundynix-micro-go/app/plant/rpc/internal/svc"
	"sundynix-micro-go/app/plant/rpc/plant"

	"github.com/zeromicro/go-zero/core/logx"
)

type GetPostListLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
	logx.Logger
}

func NewGetPostListLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetPostListLogic {
	return &GetPostListLogic{
		ctx:    ctx,
		svcCtx: svcCtx,
		Logger: logx.WithContext(ctx),
	}
}

// 帖子列表
func (l *GetPostListLogic) GetPostList(in *plant.PostListReq) (*plant.PostListResp, error) {
	db := l.svcCtx.DB.Model(&plantModel.Post{})
	if in.Keyword != "" {
		db = db.Where("title like ? OR content like ?", "%"+in.Keyword+"%", "%"+in.Keyword+"%")
	}
	if in.UserId != "" {
		db = db.Where("user_id = ?", in.UserId)
	}

	var total int64
	db.Count(&total)

	pageSize := int(in.PageSize)
	if pageSize <= 0 {
		pageSize = 20
	}
	offset := (int(in.Current) - 1) * pageSize
	if offset < 0 {
		offset = 0
	}

	var list []plantModel.Post
	if err := db.Limit(pageSize).Offset(offset).Order("created_at desc").Find(&list).Error; err != nil {
		return nil, err
	}

	var result []*plant.PostInfo
	for _, item := range list {
		result = append(result, &plant.PostInfo{
			Id:           item.ID,
			UserId:       item.UserID,
			Title:        item.Title,
			Content:      item.Content,
			ViewCount:    int32(item.ViewCount),
			CommentCount: int32(item.CommentCount),
			LikeCount:    int32(item.LikeCount),
			StarCount:    int32(item.StarCount),
			Location:     item.Location,
			CreatedAt:    item.CreatedAt.Unix(),
		})
	}

	return &plant.PostListResp{List: result, Total: total}, nil
}
