import Phaser from 'phaser';
import { ReactiveScene } from 'boardgame-phaser';
import { parseShapeString, heroItemFighter1Data, type ParsedShape } from 'boardgame-core/samples/slay-the-spire-like';

export class ShapeViewerScene extends ReactiveScene {
  private readonly CELL_SIZE = 40;
  private readonly ITEMS_PER_ROW = 4;
  private currentIndex = 0;
  private currentRotation = 0;
  private currentFlipX = false;
  private currentFlipY = false;

  constructor() {
    super('ShapeViewerScene');
  }

  create(): void {
    super.create();
    this.drawShapeViewer();
    this.createControls();
  }

  private drawShapeViewer(): void {
    this.children.removeAll();

    const { width, height } = this.scale;

    // Title
    this.add.text(width / 2, 30, 'Shape Viewer - Item Shapes', {
      fontSize: '24px',
      color: '#ffffff',
      fontStyle: 'bold',
    }).setOrigin(0.5);

    // Draw all shapes in a grid
    this.drawAllShapes();
  }

  private drawAllShapes(): void {
    const { width } = this.scale;
    const startY = 80;
    const spacingX = 220;
    const spacingY = 140;

    // Show first 12 items for clarity
    const itemsToShow = heroItemFighter1Data.slice(0, 12);

    for (let i = 0; i < itemsToShow.length; i++) {
      const data = itemsToShow[i];
      const shape = parseShapeString(data.shape);

      const col = i % this.ITEMS_PER_ROW;
      const row = Math.floor(i / this.ITEMS_PER_ROW);

      const x = 60 + col * spacingX;
      const y = startY + row * spacingY;

      this.drawSingleShape(x, y, data, shape);
    }
  }

  private drawSingleShape(startX: number, startY: number, data: any, shape: ParsedShape): void {
    const graphics = this.add.graphics();

    // Draw shape background
    const shapeWidth = shape.width * this.CELL_SIZE;
    const shapeHeight = shape.height * this.CELL_SIZE;

    // Title - item name
    this.add.text(startX + shapeWidth / 2, startY - 20, data.name, {
      fontSize: '14px',
      color: '#ffffff',
      fontStyle: 'bold',
    }).setOrigin(0.5);

    // Draw shape cells
    for (let y = 0; y < shape.height; y++) {
      for (let x = 0; x < shape.width; x++) {
        if (shape.grid[y]?.[x]) {
          const px = startX + x * this.CELL_SIZE;
          const py = startY + y * this.CELL_SIZE;

          // Determine if this is the origin cell
          const isOrigin = x === shape.originX && y === shape.originY;
          const color = isOrigin ? 0x88cc44 : 0x4488cc;

          graphics.fillStyle(color);
          graphics.fillRect(px + 1, py + 1, this.CELL_SIZE - 2, this.CELL_SIZE - 2);
          graphics.lineStyle(2, 0xffffff);
          graphics.strokeRect(px, py, this.CELL_SIZE, this.CELL_SIZE);

          // Mark origin with 'O'
          if (isOrigin) {
            this.add.text(px + this.CELL_SIZE / 2, py + this.CELL_SIZE / 2, 'O', {
              fontSize: '16px',
              color: '#ffffff',
              fontStyle: 'bold',
            }).setOrigin(0.5);
          }
        }
      }
    }

    // Shape string
    this.add.text(startX + shapeWidth / 2, startY + shapeHeight + 10, `形状: ${data.shape}`, {
      fontSize: '11px',
      color: '#aaaaaa',
    }).setOrigin(0.5);

    // Type and cost
    this.add.text(startX + shapeWidth / 2, startY + shapeHeight + 28, 
      `类型: ${data.type} | 费用: ${data.costCount} ${data.costType}`, {
      fontSize: '11px',
      color: '#cccccc',
    }).setOrigin(0.5);

    // Description
    this.add.text(startX + shapeWidth / 2, startY + shapeHeight + 46, data.desc, {
      fontSize: '10px',
      color: '#888888',
      wordWrap: { width: shapeWidth },
    }).setOrigin(0.5);
  }

  private createControls(): void {
    const { width, height } = this.scale;

    // Back button
    this.createButton('返回菜单', 100, height - 40, () => {
      this.scene.start('IndexScene');
    });

    // Info text
    this.add.text(width / 2, height - 40, 
      `Showing first 12 items | Green = Origin | Blue = Normal`, {
      fontSize: '14px',
      color: '#aaaaaa',
    }).setOrigin(0.5);
  }

  private createButton(label: string, x: number, y: number, onClick: () => void): void {
    const buttonWidth = 120;
    const buttonHeight = 36;

    const bg = this.add.rectangle(x, y, buttonWidth, buttonHeight, 0x444466)
      .setStrokeStyle(2, 0x7777aa)
      .setInteractive({ useHandCursor: true });

    const text = this.add.text(x, y, label, {
      fontSize: '16px',
      color: '#ffffff',
    }).setOrigin(0.5);

    bg.on('pointerover', () => {
      bg.setFillStyle(0x555588);
      text.setScale(1.05);
    });

    bg.on('pointerout', () => {
      bg.setFillStyle(0x444466);
      text.setScale(1);
    });

    bg.on('pointerdown', onClick);
  }
}