import response from "./response";
import moduleHelper from "./module-helper";

//暂存readFile的数据
const tempCacheObj = {};

export default {
    /*env*/
    WXGetUserDataPath(){
        return wx.env.USER_DATA_PATH;
    },
    WXWriteFileSync(filePath, data, encoding){
        try{
            const fs = wx.getFileSystemManager();
            fs.writeFileSync(filePath, data, encoding)
        }catch (e) {
            console.error(e);
            return e.message;
        }
        return "ok";
    },
    WXAccessFileSync(filePath){
        try{
            const fs = wx.getFileSystemManager();
            fs.accessSync(filePath);
            return "access:ok";
        }catch (e) {
           // console.error(e);
            return e.message;
        }
    },
    WXAccessFile(path,s,f,c){
        const fs = wx.getFileSystemManager();
        fs.access({
            path:path,
            ...response.handleText(s,f,c)
        });
    },
    WXCopyFileSync(src,dst){
        try{
            const fs = wx.getFileSystemManager();
            fs.copyFileSync(src,dst);
            return "copyFile:ok";
        }catch (e) {
            console.error(e);
            return e.message;
        }
    },
    WXCopyFile(srcPath,destPath,s,f,c){
        const fs = wx.getFileSystemManager();
        fs.copyFile({
            srcPath,
            destPath,
            ...response.handleText(s,f,c)
        });
    },
    WXUnlinkSync(filePath){
        try{
            const fs = wx.getFileSystemManager();
            fs.unlinkSync(filePath);
            return "unlink:ok";
        }catch (e) {
            console.error(e);
            return e.message;
        }
    },
    WXUnlink(filePath,s,f,c){
        const fs = wx.getFileSystemManager();
        fs.unlink({
            filePath,
            ...response.handleText(s,f,c)
        });
    },
    WXWriteFile(filePath,data,encoding,s,f,c){
        const fs = wx.getFileSystemManager();
        fs.writeFile({
            filePath,
            data:data.buffer,
            encoding,
            ...response.handleTextLongBack(s,f,c)
        })
    },
    WXWriteStringFile(filePath,data,encoding,s,f,c){
        const fs = wx.getFileSystemManager();
        fs.writeFile({
            filePath,
            data,
            encoding,
            ...response.handleTextLongBack(s,f,c)
        })
    },
    WXAppendFile(filePath,data,encoding,s,f,c){
        const fs = wx.getFileSystemManager();
        fs.appendFile({
            filePath,
            data:data.buffer,
            encoding,
            ...response.handleTextLongBack(s,f,c)
        })
    },
    WXAppendStringFile(filePath,data,encoding,s,f,c){
        const fs = wx.getFileSystemManager();
        fs.appendFile({
            filePath,
            data,
            encoding,
            ...response.handleTextLongBack(s,f,c)
        })
    },
    WXWriteBinFileSync(filePath,data,encoding){
        const fs = wx.getFileSystemManager();
        try{
            fs.writeFileSync(
                filePath,
                data.buffer,
                encoding
            )
        }catch (e) {
            console.error(e);
            return e.message;
        }
        return "ok";

    },
    WXReadFile(filePath, encoding, callbackId){
        const fs = wx.getFileSystemManager();
        fs.readFile({
            filePath,
            encoding,
            success(res){
                if(!encoding){
                    tempCacheObj[callbackId] = res.data;
                }
                moduleHelper.send('ReadFileCallback',JSON.stringify({
                    callbackId,
                    errMsg:res.errMsg,
                    errCode : 0,
                    byteLength:res.data.byteLength || 0,
                    data:encoding ? res.data : ""
                }));
            },
            fail(res){
                moduleHelper.send('ReadFileCallback',JSON.stringify({
                    callbackId,
                    errMsg:res.errMsg,
                    errCode : 1
                }));
            }
        });
    },
    WXReadFileSync(filePath,encoding){
        const fs = wx.getFileSystemManager();
        try{
            const res = fs.readFileSync(filePath, encoding);
            if(!encoding){
                tempCacheObj[filePath] = res;
                return res.byteLength;
            }else{
                return res;
            }
        }catch (e){
            console.error(e);
            return "";
        }
    },
    WXShareFileBuffer(buffer,offset,callbackId){
        buffer.set(new Uint8Array(tempCacheObj[callbackId]),offset);
        delete tempCacheObj[callbackId];
    },
    WXMkdir(dirPath,recursive,s,f,c){
        const fs = wx.getFileSystemManager();
        fs.mkdir({
            dirPath,
            recursive:Boolean(recursive),
            ...response.handleText(s,f,c)
        });
    },
    WXMkdirSync(dirPath,recursive){
        try{
            const fs = wx.getFileSystemManager();
            fs.mkdirSync(dirPath,Boolean(recursive));
            return "mkdir:ok";
        }catch (e) {
            return e.message;
        }
    }
}