// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.

'use strict';

import { OsCommands } from "../osCommands";
import { RemoteCommandResult } from "../remoteMachineData";

class WindowsCommands extends OsCommands {

    protected pathSpliter: string = '\\';

    public getScriptExt(): string {
        return "cmd";
    }
    public generateStartScript(workingDirectory: string, trialJobId: string, experimentId: string,
        trialSequenceId: string, isMultiPhase: boolean, jobIdFileName: string,
        command: string, nniManagerAddress: string, nniManagerPort: number,
        nniManagerVersion: string, logCollection: string, exitCodeFile: string,
        codeDir: string, cudaVisibleSetting: string): string {
        return `echo off
            set NNI_PLATFORM=remote
            set NNI_SYS_DIR=${workingDirectory}
            set NNI_OUTPUT_DIR=${workingDirectory}
            set NNI_TRIAL_JOB_ID=${trialJobId}
            set NNI_EXP_ID=${experimentId}
            set NNI_TRIAL_SEQ_ID=${trialSequenceId}
            set MULTI_PHASE=${isMultiPhase}
            set NNI_CODE_DIR=${codeDir}
            ${cudaVisibleSetting !== "" ? "set " + cudaVisibleSetting : ""}
            md %NNI_SYS_DIR%/code
            robocopy /s %NNI_CODE_DIR%/. %NNI_SYS_DIR%/code
            cd %NNI_SYS_DIR%/code
            python -c "import nni" 2>nul
            if not %ERRORLEVEL% EQU 0 (
                echo installing NNI as exit code of "import nni" is %ERRORLEVEL%
                python -m pip install --user --upgrade nni
            )

            echo starting script
            python -m nni_trial_tool.trial_keeper --trial_command "${command}" --nnimanager_ip "${nniManagerAddress}" --nnimanager_port "${nniManagerPort}" --nni_manager_version "${nniManagerVersion}" --log_collection "${logCollection}" --job_id_file ${jobIdFileName} 1>%NNI_OUTPUT_DIR%/trialkeeper_stdout 2>%NNI_OUTPUT_DIR%/trialkeeper_stderr

            echo save exit code(%ERRORLEVEL%) and time
            echo|set /p="%ERRORLEVEL% " > ${exitCodeFile}
            powershell -command "Write (((New-TimeSpan -Start (Get-Date "01/01/1970") -End (Get-Date).ToUniversalTime()).TotalMilliseconds).ToString("0")) | Out-file ${exitCodeFile} -Append -NoNewline -encoding utf8"`;
    }

    public generateGpuStatsScript(scriptFolder: string): string {
        return `powershell -command $env:Path=If($env:prePath){$env:prePath}Else{$env:Path};$env:METRIC_OUTPUT_DIR='${scriptFolder}';$app = Start-Process -FilePath python -NoNewWindow -passthru -ArgumentList '-m nni_gpu_tool.gpu_metrics_collector' -RedirectStandardOutput ${scriptFolder}\\scriptstdout -RedirectStandardError ${scriptFolder}\\scriptstderr;Write $PID ^| Out-File ${scriptFolder}\\pid -NoNewline -encoding utf8;wait-process $app.ID`;
    }

    public createFolder(folderName: string, sharedFolder: boolean = false): string {
        let command;
        if (sharedFolder) {
            command = `mkdir "${folderName}"\r\nICACLS "${folderName}" /grant "Users":F`;
        } else {
            command = `mkdir "${folderName}"`;
        }
        return command;
    }

    public allowPermission(isRecursive: boolean = false, ...folders: string[]): string {
        let commands: string = "";

        folders.forEach(folder => {
            commands += `ICACLS "${folder}" /grant "Users":F${isRecursive ? " /T" : ""}\r\n`
        });
        return commands;
    }

    public removeFolder(folderName: string, isRecursive: boolean = false, isForce: boolean = true): string {
        let flags = '';
        if (isForce || isRecursive) {
            flags = `${isRecursive ? ' /s' : ''}${isForce ? ' /q' : ''}`;
        }

        const command = `rmdir${flags} "${folderName}"`;
        return command;
    }

    public removeFiles(folderName: string, filePattern: string): string {
        const files = this.joinPath(folderName, filePattern);
        const command = `del "${files}"`;
        return command;
    }

    public readLastLines(fileName: string, lineCount: number = 1): string {
        const command = `powershell.exe Get-Content "${fileName}" -Tail ${lineCount}`;
        return command;
    }

    public isProcessAliveCommand(pidFileName: string): string {
        const command = `powershell.exe Get-Process -Id (get-content "${pidFileName}") -ErrorAction SilentlyContinue`;
        return command;
    }

    public isProcessAliveProcessOutput(commandResult: RemoteCommandResult): boolean {
        let result = true;
        if (commandResult.exitCode !== 0) {
            result = false;
        }
        return result;
    }

    public killChildProcesses(pidFileName: string, killSelf: boolean): string {
        let command = `powershell "$ppid=(type ${pidFileName}); function Kill-Tree {Param([int]$subppid);` +
            `Get-CimInstance Win32_Process | Where-Object { $_.ParentProcessId -eq $subppid } | ForEach-Object { Kill-Tree $_.ProcessId }; ` +
            `if ($subppid -ne $ppid){Stop-Process -Id $subppid -Force"}}` +
            `kill-tree $ppid"`;
        if (killSelf){
            command += `;Stop-Process -Id $ppid`;
        }
        return command;
    }

    public extractFile(tarFileName: string, targetFolder: string): string {
        const command = `tar -xf "${tarFileName}" -C "${targetFolder}"`;
        return command;
    }

    public executeScript(script: string, _isFile: boolean): string {
        const command = `${script}`;
        return command;
    }

    public addPreCommand(preCommand: string | undefined, command: string | undefined): string | undefined{
        if (command === undefined || command === '' || preCommand === undefined || preCommand === ''){
            return command;
        } else {
            return `${preCommand} && set prePath=%path% && ${command}`;
        }
    }
}

export { WindowsCommands };
