package services

import (
	"context"
	"github.com/TeaOSLab/EdgeAPI/internal/db/models"
	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
)

// 文件相关服务
type FileService struct {
	BaseService
}

// 查找文件
func (this *FileService) FindEnabledFile(ctx context.Context, req *pb.FindEnabledFileRequest) (*pb.FindEnabledFileResponse, error) {
	_, userId, err := this.ValidateAdminAndUser(ctx, 0, -1)
	if err != nil {
		return nil, err
	}

	var tx = this.NullTx()
	file, err := models.SharedFileDAO.FindEnabledFile(tx, req.FileId)
	if err != nil {
		return nil, err
	}
	if file == nil {
		return &pb.FindEnabledFileResponse{File: nil}, nil
	}

	if file.IsPublic != 1 {
		// 校验权限
		if userId > 0 && int64(file.UserId) != userId {
			return nil, this.PermissionError()
		}
	}

	return &pb.FindEnabledFileResponse{
		File: &pb.File{
			Id:        int64(file.Id),
			Filename:  file.Filename,
			Size:      int64(file.Size),
			CreatedAt: int64(file.CreatedAt),
			IsPublic:  file.IsPublic == 1,
		},
	}, nil
}

// 创建文件
func (this *FileService) CreateFile(ctx context.Context, req *pb.CreateFileRequest) (*pb.CreateFileResponse, error) {
	adminId, userId, err := this.ValidateAdminAndUser(ctx, 0, 0)
	if err != nil {
		return nil, err
	}

	tx := this.NullTx()

	fileId, err := models.SharedFileDAO.CreateFile(tx, adminId, userId, "ipLibrary", "", req.Filename, req.Size, req.IsPublic)
	if err != nil {
		return nil, err
	}
	return &pb.CreateFileResponse{FileId: fileId}, nil
}

// 将文件置为已完成
func (this *FileService) UpdateFileFinished(ctx context.Context, req *pb.UpdateFileFinishedRequest) (*pb.RPCSuccess, error) {
	_, err := this.ValidateAdmin(ctx, 0)
	if err != nil {
		return nil, err
	}

	tx := this.NullTx()

	err = models.SharedFileDAO.UpdateFileIsFinished(tx, req.FileId)
	if err != nil {
		return nil, err
	}
	return this.Success()
}
