export async function fileTransformations(isFolderBasedDeployment: boolean, JSONFiles: any, xmlTransformation: boolean, xmlVariableSubstitution: boolean, webDeployPkg: string) {

    var tempPackagePath;
    var folderPath = utility.generateTemporaryFolderOrZipPath(tl.getVariable('System.DefaultWorkingDirectory'), true);
        
    if(isFolderBasedDeployment) {
        tl.cp(path.join(webDeployPkg, '/*'), folderPath, '-rf', false);
    }
    else {
        await zipUtility.unzip(webDeployPkg, folderPath);
    }

    if(xmlTransformation) {
        var environmentName = tl.getVariable('Release.EnvironmentName');
        if(tl.osType().match(/^Win/)) {
            var transformConfigs = ["Release.config"];
            if(environmentName) {
                transformConfigs.push(environmentName + ".config");
            }
            xdtTransformationUtility.basicXdtTransformation(folderPath, transformConfigs);  
            console.log(tl.loc("XDTTransformationsappliedsuccessfully"));
        }
        else {
            throw new Error(tl.loc("CannotPerformXdtTransformationOnNonWindowsPlatform"));
        }
    }

    if(xmlVariableSubstitution) {
        await xmlSubstitutionUtility.substituteAppSettingsVariables(folderPath);
        console.log(tl.loc('XMLvariablesubstitutionappliedsuccessfully'));
    }

    if(JSONFiles.length != 0) {
        jsonSubstitutionUtility.jsonVariableSubstitution(folderPath, JSONFiles);
        console.log(tl.loc('JSONvariablesubstitutionappliedsuccessfully'));
    }

    if(isFolderBasedDeployment) {
        tempPackagePath = folderPath;
        webDeployPkg = folderPath;
    }
    else {
        var tempWebPackageZip = utility.generateTemporaryFolderOrZipPath(tl.getVariable('System.DefaultWorkingDirectory'), false);
        webDeployPkg = await zipUtility.archiveFolder(folderPath, "", tempWebPackageZip);
        tempPackagePath = webDeployPkg;
        tl.rmRF(folderPath, true);
    }

    return {
        "webDeployPkg": webDeployPkg,
        "tempPackagePath": tempPackagePath
    };
}

    public async deployWebPackage(packagePath: string, physicalPath: string, virtualPath: string, appOffline?: boolean): Promise<void> {
        physicalPath = physicalPath ? physicalPath : physicalRootPath;
        try {
            if(appOffline) {
                await this._appOfflineKuduService(physicalPath, true);
                tl.debug('Wait for 10 seconds for app_offline to take effect');
                await webClient.sleepFor(10);
            }

            if(tl.stats(packagePath).isDirectory()) {
                let tempPackagePath = deployUtility.generateTemporaryFolderOrZipPath(tl.getVariable('AGENT.TEMPDIRECTORY'), false);
                packagePath = await zipUtility.archiveFolder(packagePath, "", tempPackagePath);
                tl.debug("Compressed folder " + packagePath + " into zip : " +  packagePath);
            }
            else if(packagePath.toLowerCase().endsWith('.war')) {
                physicalPath = await this._warFileDeployment(packagePath, physicalPath, virtualPath);
            }

            await this._appServiceKuduService.extractZIP(packagePath, physicalPath);
            if(appOffline) {
                await this._appOfflineKuduService(physicalPath, false);
            }

            console.log(tl.loc("Successfullydeployedpackageusingkuduserviceat", packagePath, physicalPath));
        }
        catch(error) {
            tl.error(tl.loc('PackageDeploymentFailed'));
            throw Error(error);
        }
    }

export async  function containsParamFile(webAppPackage: string ) {
    var isParamFilePresent = false;
    var pacakgeComponent = await zipUtility.getArchivedEntries(webAppPackage);
    if ((pacakgeComponent["entries"].indexOf("parameters.xml") > -1) || (pacakgeComponent["entries"].indexOf("Parameters.xml") > -1)) {
        isParamFilePresent = true;
    }
    tl.debug(tl.loc("Isparameterfilepresentinwebpackage0", isParamFilePresent));
    return isParamFilePresent;
}

export async function isMSDeployPackage(webAppPackage: string ) {
    var isParamFilePresent = false;
    var pacakgeComponent = await zipUtility.getArchivedEntries(webAppPackage);
    if (((pacakgeComponent["entries"].indexOf("parameters.xml") > -1) || (pacakgeComponent["entries"].indexOf("Parameters.xml") > -1)) && 
    ((pacakgeComponent["entries"].indexOf("systemInfo.xml") > -1) || (pacakgeComponent["entries"].indexOf("systeminfo.xml") > -1) || (pacakgeComponent["entries"].indexOf("SystemInfo.xml") > -1))) {
        isParamFilePresent = true;
    }
    tl.debug("Is the package an msdeploy package : " + isParamFilePresent);
    return isParamFilePresent;
}

export async function generateTemporaryFolderForDeployment(isFolderBasedDeployment: boolean, webDeployPkg: string) {
    var folderPath = generateTemporaryFolderOrZipPath(tl.getVariable('System.DefaultWorkingDirectory'), true);
        
    if(isFolderBasedDeployment) {
        tl.debug('Copying Web Packge: ' + webDeployPkg + ' to temporary location: ' + folderPath);
        copyDirectory(webDeployPkg, folderPath);
        tl.debug('Copied Web Package: ' + webDeployPkg + ' to temporary location: ' + folderPath + ' successfully.');
    }
    else {
        await zipUtility.unzip(webDeployPkg, folderPath);
    }
    return folderPath;
}

    public async zipDeploy(packagePath: string, appOffline?: boolean, customMessage?: any): Promise<string> {
        try {
            console.log(tl.loc('PackageDeploymentInitiated'));
            await this._preZipDeployOperation();

            if(tl.stats(packagePath).isDirectory()) {
                let tempPackagePath = deployUtility.generateTemporaryFolderOrZipPath(tl.getVariable('AGENT.TEMPDIRECTORY'), false);
                packagePath = await zipUtility.archiveFolder(packagePath, "", tempPackagePath);
                tl.debug("Compressed folder " + packagePath + " into zip : " +  packagePath);
            }

            if(appOffline) {
                await this._appOfflineKuduService(physicalRootPath, true);
                tl.debug('Wait for 10 seconds for app_offline to take effect');
                await webClient.sleepFor(10);
            }

            let queryParameters: Array<string> = [
                'isAsync=true',
                'deployer=' + VSTS_ZIP_DEPLOY
            ];

            let deploymentDetails = await this._appServiceKuduService.zipDeploy(packagePath, queryParameters);

            try {
                var kuduDeploymentDetails = await this._appServiceKuduService.getDeploymentDetails(deploymentDetails.id);
                tl.debug(`logs from ZIP deploy: ${kuduDeploymentDetails.log_url}`);
                await this._printZipDeployLogs(kuduDeploymentDetails.log_url);
            }
            catch(error) {
                tl.debug(`Unable to fetch logs for kudu ZIP Deploy: ${JSON.stringify(error)}`)
            }

            if(deploymentDetails.status == KUDU_DEPLOYMENT_CONSTANTS.FAILED) {
                throw tl.loc('PackageDeploymentUsingZipDeployFailed');
            }

            if(appOffline) {
                await this._appOfflineKuduService(physicalRootPath, false);
            }

            console.log(tl.loc('PackageDeploymentSuccess'));
            return deploymentDetails.id;
        }
        catch(error) {
            tl.error(tl.loc('PackageDeploymentFailed'));
            throw Error(error);
        }
    }

export async function archiveFolderForDeployment(isFolderBasedDeployment: boolean, folderPath: string) {
    var webDeployPkg;

    if(isFolderBasedDeployment) {
        webDeployPkg = folderPath;
    }
    else {
        var tempWebPackageZip = generateTemporaryFolderOrZipPath(tl.getVariable('System.DefaultWorkingDirectory'), false);
        webDeployPkg = await zipUtility.archiveFolder(folderPath, "", tempWebPackageZip);
    }

    return {
        "webDeployPkg": webDeployPkg,
        "tempPackagePath": webDeployPkg
    };
}

    public async isMSBuildPackage(): Promise<boolean> {
        if(this._isMSBuildPackage == undefined) {
            this._isMSBuildPackage = false;
            if(this.getPackageType() != PackageType.folder) {
                var pacakgeComponent = await zipUtility.getArchivedEntries(this._path);
                if (((pacakgeComponent["entries"].indexOf("parameters.xml") > -1) || (pacakgeComponent["entries"].indexOf("Parameters.xml") > -1)) && 
                    ((pacakgeComponent["entries"].indexOf("systemInfo.xml") > -1) || (pacakgeComponent["entries"].indexOf("systeminfo.xml") > -1)
                    || (pacakgeComponent["entries"].indexOf("SystemInfo.xml") > -1))) {
                    this._isMSBuildPackage = true;
                }
            }
            
            tl.debug("Is the package an msdeploy package : " + this._isMSBuildPackage);
        }

        return this._isMSBuildPackage;
    }

    public async DeployWebAppStep() {
        let deploymentMethodtelemetry = '{"deploymentMethod":"Zip Deploy"}';
        console.log("##vso[telemetry.publish area=TaskDeploymentMethod;feature=AzureWebAppDeployment]" + deploymentMethodtelemetry);

        var webPackage = await FileTransformsUtility.applyTransformations(this.taskParams.Package.getPath(), this.taskParams);

        if(this.taskParams.UseWebDeploy && this.taskParams.DeploymentType === DeploymentType.zipDeploy) {
            var _isMSBuildPackage = await this.taskParams.Package.isMSBuildPackage();
            if(_isMSBuildPackage) {
                throw Error(tl.loc("Publishusingzipdeploynotsupportedformsbuildpackage"));
            }
            else if(this.taskParams.VirtualApplication) {
                throw Error(tl.loc("Publishusingzipdeploynotsupportedforvirtualapplication"));
            }
            else if(this.taskParams.Package.getPackageType() === PackageType.war) {
                throw Error(tl.loc("Publishusingzipdeploydoesnotsupportwarfile"));
            }
        }

        if(tl.stats(webPackage).isDirectory()) {
            let tempPackagePath = deployUtility.generateTemporaryFolderOrZipPath(tl.getVariable('AGENT.TEMPDIRECTORY'), false);
            webPackage = await zipUtility.archiveFolder(webPackage, "", tempPackagePath);
            tl.debug("Compressed folder into zip " +  webPackage);
        }

        tl.debug("Initiated deployment via kudu service for webapp package : ");
        
        var updateApplicationSetting = ParameterParser.parse(removeRunFromZipAppSetting)
        var deleteApplicationSetting = ParameterParser.parse(deleteOldRunFromZipAppSetting)
        var isNewValueUpdated: boolean = await this.appServiceUtility.updateAndMonitorAppSettings(updateApplicationSetting, deleteApplicationSetting);

        if(!isNewValueUpdated) {
            await this.kuduServiceUtility.warmpUp();
        }

        this.zipDeploymentID = await this.kuduServiceUtility.deployUsingZipDeploy(webPackage, this.taskParams.TakeAppOfflineFlag, 
            { slotName: this.appService.getSlot() });

        await this.PostDeploymentStep();
    }

/**
 * Deploys website using Kudu REST API
 *
 * @param   webDeployPkg                   Web deploy package
 * @param   webAppName                     Web App Name
 * @param   publishingProfile              Azure RM Connection Details
 * @param   virtualApplication             Virtual Application Name
 * @param   isFolderBasedDeployment        Input is folder or not
 *
 */
async function DeployUsingKuduDeploy(webDeployPkg, azureWebAppDetails, publishingProfile, virtualApplication, isFolderBasedDeployment, takeAppOfflineFlag) {
    var tempPackagePath = null;
    try {
        var virtualApplicationMappings = azureWebAppDetails.properties.virtualApplications;
        var webAppZipFile = webDeployPkg;
        if(isFolderBasedDeployment) {
            tempPackagePath = deployUtility.generateTemporaryFolderOrZipPath(tl.getVariable('System.DefaultWorkingDirectory'), false);
            webAppZipFile = await zipUtility.archiveFolder(webDeployPkg, "", tempPackagePath);
            tl.debug("Compressed folder " + webDeployPkg + " into zip : " +  webAppZipFile);
        } else {
            if (await deployUtility.isMSDeployPackage(webAppZipFile)) {
                throw new Error(tl.loc("MSDeploygeneratedpackageareonlysupportedforWindowsplatform"));
            }
        }
        var physicalPath = "/site/wwwroot";
        var virtualPath = "/";
        if(virtualApplication) {
            var pathMappings = kuduUtility.getVirtualAndPhysicalPaths(virtualApplication, virtualApplicationMappings);
            if(pathMappings[1] != null) {
                virtualPath = pathMappings[0];
                physicalPath = pathMappings[1];
            } else {
                throw Error(tl.loc("VirtualApplicationDoesNotExist", virtualApplication));
            }
        }
        await kuduUtility.deployWebAppPackage(webAppZipFile, publishingProfile, virtualPath, physicalPath, takeAppOfflineFlag);
        console.log(tl.loc('PackageDeploymentSuccess'));
    }
    catch(error) {
        tl.error(tl.loc('PackageDeploymentFailed'));
        throw Error(error);
    }
    finally {
        if(tempPackagePath) {
            tl.rmRF(tempPackagePath, true);
        }
    }
}