package Visual_DVM_2021.Passes.All;
import Common.Current;
import Common.Global;
import Common.UI.UI;
import Common.Utils.Files.VDirectoryChooser;
import Common.Utils.Index;
import Common.Utils.Utils;
import GlobalData.Tasks.TaskState;
import TestingSystem.DVM.Tasks.TestRunTask;
import TestingSystem.DVM.TasksPackage.TasksPackage;
import TestingSystem.DVM.TasksPackage.TasksPackageState;
import Visual_DVM_2021.Passes.Pass_2021;
import org.apache.commons.io.FileUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.*;

import java.awt.*;
import java.io.File;
import java.io.FileOutputStream;
import java.util.Vector;
public class ExportTasksPackageToExcel extends Pass_2021<TasksPackage> {
    //https://tproger.ru/translations/how-to-read-write-excel-file-java-poi-example
    File dir;
    File res;
    VDirectoryChooser directoryChooser = new VDirectoryChooser("Выбор папки для сохранения таблицы Excel");
    //---
    final int max_columns = 16;
    Vector<CellStyle> styles;
    //--
    //--
    Workbook book = null;
    Sheet sheet = null;
    //--
    Vector<TestRunTask> tasks = null;
    //--
    @Override
    public String getIconPath() {
        return "/icons/Excel.png";
    }
    @Override
    public String getButtonText() {
        return "";
    }
    @Override
    protected boolean needsAnimation() {
        return true;
    }
    @Override
    protected boolean canStart(Object... args) throws Exception {
        book = null;
        sheet = null;
        styles = null;
        tasks = null;
        //--
        if (Current.Check(Log, Current.TasksPackage)) {
            target = Current.getTasksPackage();
            if (!target.state.equals(TasksPackageState.Done)) {
                Log.Writeln_("Можно получить таблицу только завершенного пакета.");
                return false;
            } else {
                //---
                tasks = new Vector<>();
                for (TestRunTask task : Global.testingServer.account_db.testRunTasks.Data.values()) {
                    if ((task.taskspackage_id == target.id) && (task.isVisible()))
                        tasks.add(task);
                }
                if (tasks.isEmpty()) {
                    Log.Writeln_("Не найдено ни одной видимой задачи.");
                    return false;
                }
                //---
                dir = directoryChooser.ShowDialog();
                if (dir == null) {
                    Log.Writeln_("Папка не выбрана.");
                    return false;
                }
                res = new File(dir, Utils.getDateName("package_" + target.id) + ".xls");
                return true;
            }
        }
        return false;
    }
    protected Row addRow(int row_num, boolean isHeader, Object... values) {
        Row row = sheet.createRow(row_num);
        int i = 0;
        for (Object value : values) {
            String cell_text = value.toString();
            Cell cell = row.createCell(i);
            int style_index = 0;
            if (!isHeader) {
                switch (i) {
                    case 4:
                    case 5:
                        TaskState state = (TaskState) value;
                        cell_text = state.getDescription();
                        switch (state) {
                            case FailedToQueue:
                            case NoSuchTask:
                            case AbortedByUser:
                            case AbortedByTimeout:
                            case DoneWithErrors:
                            case WrongTestFormat:
                            case InternalError:
                            case Canceled:
                                style_index = 3;
                                break;
                            case Queued:
                            case Running:
                                style_index = 5;
                                break;
                            case Done:
                                style_index = 2;
                                break;
                            case Crushed:
                                style_index = 4;
                                break;
                            case Finished:
                                style_index = 6;
                                break;
                        }
                        break;
                    default:
                        style_index = 1;
                        break;
                }
            }
            cell.setCellStyle(styles.get(style_index));
            cell.setCellValue(cell_text);
            //--
            ++i;
        }
        return row;
    }
    protected void setBorder(CellStyle style, short border) {
        style.setBorderBottom(border);
        style.setBorderLeft(border);
        style.setBorderRight(border);
        style.setBorderTop(border);
    }
    protected String extractEnvironmentValue(String environmentsSet, String name) {
        if (environmentsSet.contains(name)) {
            int index = environmentsSet.lastIndexOf(name);
            if (index >= 0) {
                String s1 = environmentsSet.substring(index + name.length() + 1);
                String[] data = s1.split("\"");
                if (data.length > 0) {
                    return data[1];
                }
            }
        }
        return null;
    }
    protected Integer extractIntegerEnvironmentValue(String environmentsSet, String name) {
        Integer res = null;
        String s = extractEnvironmentValue(environmentsSet, name);
        if (s != null) {
            try {
                res = Integer.parseInt(s);
            } catch (NumberFormatException ex) {
                ex.printStackTrace();
            }
        }
        return res;
    }
    void createStyles(){
        styles = new Vector<>();
        //0 - заголовок
        //1 - черный
        //2 - зеленый
        //3 - красный
        //4 - темно красный
        //5 - оранжевый
        //6 - серый
        for (int i = 0; i < 6; ++i) {
            CellStyle style = book.createCellStyle();
            Font font = book.createFont();
            switch (i) {
                case 0:
                    font.setBold(true);
                    setBorder(style, CellStyle.BORDER_THICK);
                    break;
                default:
                    setBorder(style, CellStyle.BORDER_THIN);
                    switch (i) {
                        case 1:
                            font.setColor(HSSFColor.BLACK.index);
                            break;
                        case 2:
                            font.setColor(HSSFColor.GREEN.index);
                            break;
                        case 3:
                            font.setColor(HSSFColor.RED.index);
                            break;
                        case 4:
                            font.setColor(HSSFColor.DARK_RED.index);
                            break;
                        case 5:
                            font.setColor(HSSFColor.ORANGE.index);
                            break;
                        case 6:
                            font.setColor(HSSFColor.GREY_40_PERCENT.index);
                            break;
                    }
                    break;
            }
            style.setFont(font);
            styles.add(style);
        }
    }
    void exportPackage(TasksPackage tasksPackage, Index offset){
        Row header = addRow(offset.getValue(), true,
                "Группа",
                "Тест",
                "Язык",
                "Флаги",
                "Компиляция",
                "Запуск",
                "NUM_THREADS",
                "NUM_CUDAS",
                "TOTAL_THREADS",
                "Матрица",
                "Окружение",
                "usr.par",
                "Время компиляции (с)",
                "Время запуска (с)",
                "Чистое время (с)",
                "Прогресс (%)");
        //--
        offset.Inc();
        //--
        for (TestRunTask task : tasks) {
            ShowMessage2(task.test_description);
            //---
            Integer NUM_THREADS = extractIntegerEnvironmentValue(task.environments, "DVMH_NUM_THREADS");
            if (NUM_THREADS == 0)
                NUM_THREADS = 1;
            Integer NUM_CUDAS = extractIntegerEnvironmentValue(task.environments, "DVMH_NUM_CUDAS");
            //--
            Object num_threads = (NUM_THREADS != null) ? NUM_THREADS : "undef";
            Object num_cudas = (NUM_CUDAS != null) ? NUM_CUDAS : "undef";
            Object total_threads = (NUM_THREADS != null) ? NUM_THREADS * Utils.getMatrixProcessors(task.matrix) : "undef";
            //--
            Row row = addRow(offset.getValue(), false,
                    task.group_description,
                    task.test_description,
                    task.language.getDescription(),
                    task.flags,
                    task.compilation_state,
                    task.state,
                    num_threads,
                    num_cudas,
                    total_threads,
                    task.matrix,
                    task.environments,
                    task.usr_par,
                    task.compilation_time,
                    task.Time,
                    task.CleanTime,
                    task.progress
            );
            offset.Inc();
        }

    }

    @Override
    protected void body() throws Exception {
        File file = Utils.getTempFileName("table");
        //--
        book = new HSSFWorkbook();
        sheet = book.createSheet("Результаты тестирования");
        //--
        createStyles();
        //--
        Index offset = new Index();
        exportPackage(target, offset);
        //--
        for (int i = 0; i < max_columns; ++i)
            sheet.autoSizeColumn(i);
        // Записываем всё в файл
        FileOutputStream stream = new FileOutputStream(file);
        book.write(stream);
        book.close();
        stream.close();
        ///--
        FileUtils.copyFile(file, res);
        book = null;
        stream = null;
        file = null;
    }
    @Override
    protected void performDone() throws Exception {
        super.performDone();
        if (Desktop.isDesktopSupported()) {
            if (UI.Question("Таблица сформирована в файле\n" + Utils.DQuotes(res.getAbsolutePath()) + ".\nОткрыть её"
            )) {
                Desktop.getDesktop().open(res);
            }
        }
    }
}