package SapforTestingSystem;
import Common.Constants.Constants;
import Common.Global;
import Common.Utils.Utils;
import GlobalData.Tasks.TaskState;
import ProjectData.Project.db_project_info;
import SapforTestingSystem.Json.SapforPackage_json;
import SapforTestingSystem.Json.SapforVersion_json;
import SapforTestingSystem.SapforTask.SapforTask;
import Visual_DVM_2021.Passes.PassCode_2021;
import Visual_DVM_2021.Passes.PassException;
import Visual_DVM_2021.Passes.Pass_2021;
import org.apache.commons.io.FileUtils;

import java.io.File;
import java.nio.charset.Charset;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Comparator;
import java.util.Vector;
public class PerformSapforTask extends Pass_2021<SapforTask> {
    @Override
    public String getDescription() {
        return "Запуск задачи SAPFOR";
    }
    @Override
    protected boolean needsAnimation() {
        return false;
    }
    //--
    File sapfor_drv;
    SapforPackage_json sapforPackage_json;
    //-----
    File parentTask;
    File task;
    //-----
    Process process = null;
    int exit_code = Constants.Nan;
    //----
    File outputFile = null;
    File errorsFile = null;
    //--
    Vector<String> outputLines;
    Vector<String> errorsLines;
    //---
    @Override
    protected boolean canStart(Object... args) throws Exception {
        sapfor_drv = (File) args[0];
        sapforPackage_json = (SapforPackage_json) args[1];
        String testDescription = (String) args[2];
        target = (SapforTask) args[3];
        //--->>
        parentTask = Paths.get(Global.Home, sapforPackage_json.id, testDescription).toFile();
        task = null;
        //--->>
        target.sapfortaskspackage_2023_id = Integer.parseInt(sapforPackage_json.id);
        target.test_description = testDescription;
        target.root = parentTask.getAbsolutePath();
        return true;
    }
    protected static boolean checkLines(Vector<String> lines) {
        for (String line : lines) {
            if (line.toLowerCase().contains("internal error")) {
                return false;
            }
            if (line.toLowerCase().contains("exception")) {
                return false;
            }
            if (line.contains("[ERROR]")) {
                return false;
            }
        }
        return true;
    }
    protected boolean performSapforScript(String name, File workspace, String command, String outName, String errName) throws Exception {
        process = null;
        exit_code = Constants.Nan;
        //---
        File data_workspace = new File(workspace, db_project_info.data);
        Utils.CheckDirectory(data_workspace);
        outputFile = new File(data_workspace, outName);
        errorsFile = new File(data_workspace, errName);
        Utils.delete_with_check(outputFile);
        Utils.delete_with_check(errorsFile);
        //---
        File file = new File(data_workspace, name + (Global.isWindows ? ".bat" : ".sh"));
        FileUtils.write(file,
                Utils.DQuotes(sapfor_drv.getAbsolutePath())
                        + (sapforPackage_json.flags.isEmpty() ? "" : (" " + sapforPackage_json.flags))
                        + " -noLogo"
                        + " " + command +
                        " 1>" +
                        Utils.DQuotes(outputFile.getAbsolutePath()) +
                        " 2>" +
                        Utils.DQuotes(errorsFile.getAbsolutePath()),
                Charset.defaultCharset());
        if (!file.setExecutable(true))
            throw new Exception("Не удалось сделать файл скрипта " + name + " исполняемым!");
        //--
        ProcessBuilder procBuilder = new ProcessBuilder(file.getAbsolutePath());
        procBuilder.directory(workspace);
        process = procBuilder.start();
        exit_code = process.waitFor();
        if (exit_code != 0)
            throw new PassException("Процесс завершился с кодом " + exit_code);
        process = null;
        //---
        outputLines = new Vector<>(FileUtils.readLines(outputFile));
        errorsLines = new Vector<>(FileUtils.readLines(errorsFile));
        return checkLines(outputLines) && checkLines(errorsLines);
    }
    protected boolean parse() throws Exception {
        if (performSapforScript("parse", parentTask,
                "-parse *.f *.for *.fdv *.f90 *.f77",
                "parse_out.txt", "parse_err.txt")
                && (new File(parentTask, "dvm.proj")).exists()) {
            return true;
        } else {
            target.state = TaskState.DoneWithErrors;
            return false;
        }
    }
    protected boolean transformation(PassCode_2021 code) throws Exception {
        task = new File(parentTask, "v1");
        Utils.CheckAndCleanDirectory(task); //папка для преобразования.
        if (performSapforScript("transformation", parentTask,
                code.getTestingCommand() + " -F " + Utils.DQuotes(task.getAbsolutePath()),
                "out.txt",
                "err.txt"
        )) {
            target.state = TaskState.Done;
            target.versions.add(new SapforVersion_json(task.getAbsolutePath(), code.getDescription()));
            parentTask = task;
            return true;
        }
        Utils.delete_with_check(task);
        target.state = TaskState.DoneWithErrors;
        return false;
    }
    protected boolean variants() throws Exception {
        if (performSapforScript("create_variants", parentTask, " -t 13 -allVars",
                "out.txt",
                "err.txt"
        )) {
            //найти папки с вариантами.
            File[] files_ = parentTask.listFiles((dir, name) -> dir.isDirectory() && Utils.isParallelVersionName(name));
            if ((files_ != null) && (files_.length > 0)) {
                Vector<File> files = new Vector<>(Arrays.asList(files_));
                files.sort(Comparator.comparingInt(o -> Integer.parseInt(o.getName().substring(1))));
                target.state = TaskState.Done;
                for (File file : files)
                    target.variants.add(new SapforVersion_json(file.getAbsolutePath(), PassCode_2021.SPF_CreateParallelVariant.getDescription()));
                return true;
            }
        }
        target.state = TaskState.DoneWithErrors;
        return false;
    }
    @Override
    protected void body() throws Exception {
        System.out.println(target.root + " " + Utils.Brackets(sapforPackage_json.flags));//!!
        for (PassCode_2021 code : sapforPackage_json.codes) {
            System.out.println(code); //!!
            if (parse()) {
                if (code.equals(PassCode_2021.CreateParallelVariants))
                    variants();
                else if (!transformation(code))
                    break;
            } else
                break;
        }
        /*
        //Запись результатов. todo сделать единый файл со списком итогов. уже после выполнения нитей.
        File data_workspace = new File(target.root, db_project_info.data);
        Utils.CheckDirectory(data_workspace);
        Utils.jsonToFile(target, new File(data_workspace, "result.txt"));
         */
    }
}