/******************************
 * This file holds game states.
 ******************************/

/** [CUSTOM MENU STATE] Screen where the user can customise the selected game - game mode, math operation, level of difficulty.
 *
 * @namespace
 */
const customMenuState = {
  /**
   * Preloads media for current state
   */
  preload: function () {
    // LOADING MEDIA
    game.load.sprite(url[gameType].sprite);
    game.load.image(url[gameType].image);
  },

  /**
   * Main code
   */
  create: function () {
    // FOR MOODLE
    if (moodle && iLMparameters.iLM_PARAM_SendAnswer == 'false') {
      // Student role

      game.state.start('map');
    } else {
      // Background color
      game.add.geom.rect(
        0,
        0,
        context.canvas.width,
        context.canvas.height,
        undefined,
        0,
        colors.blueBg,
        1
      );
      // Floor
      for (let i = 0; i < context.canvas.width / 100; i++) {
        game.add.image(i * 100, context.canvas.height - 100, 'floor');
      }

      // Overtitle : Selected game
      game.add.text(
        context.canvas.width / 2,
        40,
        game.lang.game.toUpperCase() + ': ' + menuState.menuIcons,
        textStyles.h4_brown
      );
      // Title : Customize the selected game
      game.add.text(
        context.canvas.width / 2,
        80,
        game.lang.custom_game,
        textStyles.h1_green
      );

      // Loads navigation icons
      navigationIcons.add(true, false, false, true, true, 'menu', false);

      let infoIcon;
      const iconScale = 0.7;
      const curGame = info.all[gameType];
      this.menuIcons = [];

      let x = gameFrame().x;
      let y = gameFrame().y;

      let offsetW = game.math.getOffset(gameFrame().width, 5);
      let offsetH = game.math.getOffset(
        gameFrame().height,
        curGame.gameMode.length
      );

      const line_thickness = 5;

      // Label 'Game Modes'
      game.add.text(x + offsetW, y, game.lang.game_modes, textStyles.h2_blue);

      infoIcon = game.add.image(x + 2 * offsetW - 30, y - 20, 'info', 0.5, 0.4);
      infoIcon.anchor(0.5, 0.5);
      infoIcon.iconType = 'infoIcon';
      infoIcon.id = 'gameMode';
      this.menuIcons.push(infoIcon);

      // Label 'Operations'
      game.add.text(
        x + 3 * offsetW,
        y,
        game.lang.operations,
        textStyles.h2_blue
      );

      infoIcon = game.add.image(x + 4 * offsetW - 30, y - 20, 'info', 0.5, 0.4);
      infoIcon.anchor(0.5, 0.5);
      infoIcon.iconType = 'infoIcon';
      infoIcon.id = 'gameOperation';
      this.menuIcons.push(infoIcon);

      // Label 'Difficulties'
      game.add.text(
        x + 5 * offsetW,
        y,
        game.lang.difficulties,
        textStyles.h2_blue
      );

      infoIcon = game.add.image(x + 6 * offsetW - 30, y - 20, 'info', 0.5, 0.4);
      infoIcon.anchor(0.5, 0.5);
      infoIcon.iconType = 'infoIcon';
      infoIcon.id = 'gameDifficulty';
      this.menuIcons.push(infoIcon);

      // Horizontal line
      game.add.geom
        .rect(
          x - 25,
          y + 10,
          gameFrame().width,
          line_thickness,
          undefined,
          0,
          colors.blueMenuLine
        )
        .anchor(0, 0.5);
      // Vertical lines
      game.add.geom
        .rect(
          x + 2 * offsetW,
          y - 25,
          line_thickness,
          gameFrame().height,
          undefined,
          0,
          colors.blueMenuLine
        )
        .anchor(0.5, 0);
      game.add.geom
        .rect(
          x + 4 * offsetW,
          y - 25,
          line_thickness,
          gameFrame().height,
          undefined,
          0,
          colors.blueMenuLine
        )
        .anchor(0.5, 0);

      // --------------------------- TURN ON/OFF FRACTION LABELS / RECTANGLE GUIDE

      // Horizontal line
      game.add.geom
        .rect(
          x + 4 * offsetW,
          y + offsetH,
          gameFrame().width / 3 - 4 * line_thickness,
          line_thickness,
          undefined,
          0,
          colors.blueMenuLine
        )
        .anchor(0, 0.5);

      infoIcon = game.add.image(
        x + 6 * offsetW - 30,
        y + offsetH - 20,
        'info',
        0.5,
        0.4
      );
      infoIcon.anchor(0.5, 0.5);
      infoIcon.iconType = 'infoIcon';
      infoIcon.id = 'gameMisc';
      this.menuIcons.push(infoIcon);

      // Label 'Show Fractions / Auxiliar rectangles'
      game.add.text(
        x + 5 * offsetW,
        y + offsetH - 48,
        game.lang.show,
        textStyles.h4_blue
      );

      let auxText;
      if (gameType == 'squareTwo') {
        auxText = game.lang.aux_rectangle;
        game.add.text(
          x + 5 * offsetW + 10,
          y + offsetH - 24,
          auxText,
          textStyles.h4_blue
        );
      } else {
        auxText = game.lang.title;
        game.add.text(
          x + 5 * offsetW,
          y + offsetH - 24,
          auxText,
          textStyles.h2_blue
        );
      }

      // Selection box
      y += 40;
      const frame = fractionLabel ? 1 : 0;

      const selectionBox = game.add.sprite(
        x + 5 * offsetW,
        y + offsetH,
        'select',
        frame,
        0.11
      );
      selectionBox.anchor(0.5, 0.5);
      selectionBox.iconType = 'selectionBox';
      this.menuIcons.push(selectionBox);

      // --------------------------- GAME MODE ICONS

      x = gameFrame().x + offsetW;
      y = gameFrame().y + offsetH / 2;

      for (let i = 0; i < curGame.gameModeUrl.length; i++, y += offsetH) {
        const icon = game.add.sprite(
          x,
          y,
          curGame.gameModeUrl[i],
          0,
          iconScale,
          1
        );
        icon.anchor(0.5, 0.5);

        icon.gameMode = curGame.gameMode[i];
        icon.iconType = 'gameMode';
        if (i == 0) {
          gameMode = icon.gameMode;
          icon.curFrame = 1;
        }

        this.menuIcons.push(icon);
      }

      // --------------------------- GAME OPERATION ICONS

      x += 2 * offsetW;
      y = gameFrame().y + offsetH / 2;
      offsetH = game.math.getOffset(
        gameFrame().height,
        curGame.gameOperation.length
      );

      let icon;

      // Placing math operation icons
      for (let i = 0; i < curGame.gameOperation.length; i++, y += offsetH) {
        icon = game.add.sprite(
          x,
          y,
          curGame.gameOperationUrl[i],
          0,
          iconScale,
          1
        );
        icon.anchor(0.5, 0.5);

        icon.gameOperation = curGame.gameOperation[i];
        icon.iconType = 'gameOperation';

        if (i == 0) {
          gameOperation = icon.gameOperation;
          icon.curFrame = 1;
        }

        this.menuIcons.push(icon);
      }

      // --------------------------- DIFFICULTY ICONS
      x = gameFrame().x - 50 + 5 * offsetW;

      offsetH = game.math.getOffset(
        gameFrame().height,
        curGame.gameMode.length
      );
      y = gameFrame().y + offsetH / 3;

      if (gameType != 'squareOne') x -= 40;

      for (let i = 0; i < curGame.gameDifficulty; i++) {
        // Parameters
        const curX = x + (30 + 10) * i;

        // Difficulty menuIcons
        const icon = game.add.geom.rect(
          curX,
          y,
          30,
          30,
          undefined,
          0,
          colors.gray,
          1
        );
        icon.anchor(0.5, 0.5);
        icon.difficulty = i + 1;
        icon.iconType = 'difficulty';

        if (i == 0) {
          gameDifficulty = icon.difficulty;
          icon.fillColor = colors.blue;
        }
        this.menuIcons.push(icon);

        // Difficulty numbers
        game.add.text(curX, y + 7, i + 1, textStyles.h4_white);
      }

      // --------------------------- ENTER ICON

      // FOR MOODLE
      if (!moodle) {
        x = context.canvas.width - 100;
        y = context.canvas.height - 110;

        const enterIcon = game.add.image(x, y, 'bush');
        enterIcon.anchor(0.5, 0.5);
        enterIcon.iconType = 'enter';

        this.menuIcons.push(enterIcon);

        this.enterText = game.add.text(
          x,
          y,
          game.lang.continue,
          textStyles.h4_white
        );
      }

      // --------------------------- INFO BOX

      this.infoBox = document.getElementById('my-modal');

      // When the user clicks on the 'x', close the modal
      document.getElementsByClassName('close')[0].onclick = function () {
        self.infoBox.style.display = 'none';
      };

      // When the user clicks anywhere outside of the modal, close it
      window.onclick = function (event) {
        if (event.target == self.infoBox) {
          self.infoBox.style.display = 'none';
        }
      };

      this.infoBoxContent = {
        gameMode: {
          squareOne: {
            title: '<b>' + game.lang.game_modes + '</b>',
            body: game.lang.infoBox_mode,
            img:
              '<table> <tr> <td> <b>A)</b> ' +
              game.lang.infoBox_mode_s1_A +
              ' </td> <td> <b>B)</b> ' +
              game.lang.infoBox_mode_s1_B +
              ' </td> </tr> <tr> <td> <img width=100% src="' +
              game.image['s1-A-h'].src +
              '"> ' +
              ' </td> <td> <img width=100% src="' +
              game.image['s1-B-h'].src +
              '"> </td> </tr> <table>',
          },
          circleOne: {
            title: '<b>' + game.lang.game_modes + '</b>',
            body: game.lang.infoBox_mode,
            img:
              '<table> <tr style="border-bottom: 5px solid white"> <td width=70%> <img width=100% src="' +
              game.image['c1-A-h'].src +
              '">' +
              ' </td> <td> &nbsp; <b>A)</b> ' +
              game.lang.infoBox_mode_c1_A +
              ' </td> </tr> </tr> <td> <img width=100% src="' +
              game.image['c1-B-h'].src +
              '"> ' +
              ' </td> <td> &nbsp; <b>B)</b> ' +
              game.lang.infoBox_mode_c1_B +
              '</td> </tr> <table>',
          },
          squareTwo: {
            title: '<b>' + game.lang.game_modes + '</b>',
            body: game.lang.infoBox_mode,
            img:
              '<table> <tr> <td> <b>A)</b> ' +
              game.lang.infoBox_mode_s2_A +
              ' </td> <td> <b>B)</b> ' +
              game.lang.infoBox_mode_s2_B +
              ' </td> </tr> <tr> <td> <img width=98% src="' +
              game.image['s2-A-h'].src +
              '"> ' +
              ' </td> <td> <img width=98% src="' +
              game.image['s2-B-h'].src +
              '"> </td> </tr> <table>',
          },
        },

        gameOperation: {
          title: '<b>' + game.lang.operation_math + '</b>',
          body: game.lang.infoBox_oper,
          img:
            '<table class="table">' +
            '<tr>' +
            '<td> <img width=50 src="' +
            game.image['operation_plus'].src +
            '"> </td>' +
            '<td> <img width=50 src="' +
            game.image['operation_mixed'].src +
            '"> </td>' +
            '<td> <img width=50 src="' +
            game.image['operation_minus'].src +
            '"> </td>' +
            '<td> <img width=50 src="' +
            game.image['operation_equals'].src +
            '"> </td>' +
            '</tr> <tr>' +
            '<td class="text-center">' +
            game.lang.plus +
            '</td>' +
            '<td class="text-center">' +
            game.lang.mixed +
            '</td>' +
            '<td class="text-center">' +
            game.lang.minus +
            '</td>' +
            '<td class="text-center">' +
            game.lang.equals +
            '</td>' +
            '</tr>' +
            '</table>',
        },

        gameDifficulty: {
          squareOne: {
            title: '<b>' + game.lang.difficulties + '</b>',
            body: game.lang.infoBox_diff + ' ' + game.lang.infoBox_diff_obs,
            img:
              '<table> <tr> <td> <b>' +
              game.lang.difficulty +
              ':</b> 1' +
              ' </td> <td> <b>' +
              game.lang.difficulty +
              ':</b> 3' +
              ' </td> </tr> <tr> <td> <img width=100% src="' +
              game.image['s1-diff-1'].src +
              '"> ' +
              ' </td> <td style="border-left: 4px solid white"> <img width=100% src="' +
              game.image['s1-diff-3'].src +
              '"> </td> </tr> </table> <br>' +
              game.lang.infoBox_diff_aux +
              '<center> <img width=50% src="' +
              game.image['map-s1'].src +
              '"> </center>',
          },
          circleOne: {
            title: '<b>' + game.lang.difficulties + '</b>',
            body: game.lang.infoBox_diff + ' ' + game.lang.infoBox_diff_obs,
            img:
              '<table> <tr> <td style="border-right: 4px solid white"> <b>' +
              game.lang.difficulty +
              ':</b> 1' +
              ' </td> <td> <b>' +
              game.lang.difficulty +
              ':</b> 5' +
              ' </td> </tr> <tr> <td> <img width=100% src="' +
              game.image['c1-diff-1'].src +
              '"> ' +
              ' </td> <td style="border-left: 4px solid white"> <img width=100% src="' +
              game.image['c1-diff-5'].src +
              '"> </td> </tr> </table> <center> <br>' +
              game.lang.infoBox_diff_aux +
              '<center> <img width=50% src="' +
              game.image['map-c1s2'].src +
              '"> </center>',
          },
          squareTwo: {
            title: '<b>' + game.lang.difficulties + '</b>',
            body: game.lang.infoBox_diff,
            img:
              '<table> <tr> <td> <b>' +
              game.lang.difficulty +
              ':</b> 1' +
              ' </td> <td> <b>' +
              game.lang.difficulty +
              ':</b> 5' +
              ' </td> </tr> <tr> <td> <img width=100% src="' +
              game.image['s2-diff-1'].src +
              '"> ' +
              ' </td> <td style="border-left: 4px solid white"> <img width=100% src="' +
              game.image['s2-diff-5'].src +
              '"> </td> </tr> </table> <br>' +
              game.lang.infoBox_diff_aux +
              '<center> <img width=50% src="' +
              game.image['map-c1s2'].src +
              '"> </center>',
          },
        },

        gameMisc: {
          squareOne: {
            title: '<b>' + game.lang.show + ' ' + auxText + '</b>',
            body: game.lang.infoBox_misc_label,
            img:
              '<img class="mx-auto" width=80% src="' +
              game.image['s1-label'].src +
              '">',
          },
          circleOne: {
            title: '<b>' + game.lang.show + ' ' + auxText + '</b>',
            body: game.lang.infoBox_misc_label,
            img:
              '<img class="mx-auto" width=60% src="' +
              game.image['c1-label'].src +
              '">',
          },
          squareTwo: {
            title: '<b>' + game.lang.show + ' ' + auxText + '</b>',
            body: game.lang.infoBox_misc_rect,
            img:
              '<img class="mx-auto" width=100% src="' +
              game.image['s2-label'].src +
              '">',
          },
        },
      };

      // ------------- EVENTS

      game.event.add('click', this.onInputDown);
      game.event.add('mousemove', this.onInputOver);
    }
  },

  /**
   * Displays game menu information boxes.
   */
  showInfoBox: function (icon) {
    self.infoBox.style.display = 'block';

    const element =
      icon.id == 'gameOperation'
        ? self.infoBoxContent[icon.id]
        : self.infoBoxContent[icon.id][gameType];

    let msg =
      '<h3>' +
      element.title +
      '</h3>' +
      '<p align=justify>' +
      element.body +
      '</p>' +
      element.img;

    document.getElementById('infobox-content').innerHTML = msg;
  },

  /**
   * Saves information selected by the player
   *
   * @param {object} icon selected icon
   */
  load: function (icon) {
    const type = icon.iconType;

    if (audioStatus) game.audio.popSound.play();

    switch (type) {
      case 'gameMode':
        gameMode = icon.gameMode;
        break;
      case 'gameOperation':
        gameOperation = icon.gameOperation;
        break;
      case 'difficulty':
        gameDifficulty = icon.difficulty;
        break;
      case 'infoIcon':
        self.showInfoBox(icon);
        break;
      case 'selectionBox':
        if (icon.curFrame == 0) {
          icon.curFrame = 1;
          fractionLabel = true;
        } else {
          icon.curFrame = 0;
          fractionLabel = false;
        }
        game.render.all();
        break;
      case 'enter':
        if (debugMode) {
          console.log(
            '------------------------------' +
              '\nGame State: ' +
              gameType +
              '\nGame Mode: ' +
              gameMode +
              '\n------------------------------'
          );
        }
        mapPosition = 0; // Map position
        mapMove = true; // Move no next point
        completedLevels = 0; // Reset the game progress when entering a new level
        game.state.start('map');
        break;
    }
  },

  /**
   * Called by mouse click event
   *
   * @param {object} mouseEvent contains the mouse click coordinates
   */
  onInputDown: function (mouseEvent) {
    const x = game.math.getMouse(mouseEvent).x;
    const y = game.math.getMouse(mouseEvent).y;
    let overIcon;

    // Check if clicked on an icon
    for (let i in self.menuIcons) {
      if (game.math.isOverIcon(x, y, self.menuIcons[i])) {
        overIcon = i;
        break;
      }
    }

    // Update gui
    if (overIcon) {
      // If has clicked on an icon
      document.body.style.cursor = 'pointer';
      self.menuIcons.forEach((cur) => {
        if (cur.iconType == self.menuIcons[overIcon].iconType) {
          // If its in the same icon category
          if (cur == self.menuIcons[overIcon]) {
            // If its the clicked icon
            if (cur.iconType == 'gameMode' || cur.iconType == 'gameOperation')
              cur.curFrame = 1;
            else if (cur.iconType == 'difficulty') cur.fillColor = colors.blue;
          } else {
            if (cur.iconType == 'gameMode' || cur.iconType == 'gameOperation')
              cur.curFrame = 0;
            else if (cur.iconType == 'difficulty') cur.fillColor = colors.gray;
          }
        }
      });

      self.load(self.menuIcons[overIcon]);
    } else document.body.style.cursor = 'auto';

    navigationIcons.onInputDown(x, y);

    game.render.all();
  },

  /**
   * Called by mouse move event
   *
   * @param {object} mouseEvent contains the mouse move coordinates
   */
  onInputOver: function (mouseEvent) {
    const x = game.math.getMouse(mouseEvent).x;
    const y = game.math.getMouse(mouseEvent).y;
    let overIcon;

    // Check if pointer is over an icon
    for (let i in self.menuIcons) {
      if (game.math.isOverIcon(x, y, self.menuIcons[i])) {
        overIcon = i;
        break;
      }
    }

    // Update gui
    if (overIcon) {
      // If pointer is over icon
      document.body.style.cursor = 'pointer';
      self.menuIcons.forEach((cur) => {
        if (cur.iconType == self.menuIcons[overIcon].iconType) {
          // If its in the same icon category
          if (cur == self.menuIcons[overIcon]) {
            // If its the icon the pointer is over
            if (cur.iconType == 'enter')
              self.enterText.style = textStyles.h3__white;
            cur.scale = cur.originalScale * 1.1;
          } else {
            cur.scale = cur.originalScale;
          }
        }
      });
    } else {
      // If pointer is not over icon
      if (self.enterText) self.enterText.style = textStyles.h4_white;
      self.menuIcons.forEach((cur) => {
        cur.scale = cur.originalScale;
      });
      document.body.style.cursor = 'auto';
    }

    // Check navigation icons
    navigationIcons.onInputOver(x, y);

    game.render.all();
  },
};