import { getMiniCodeImage, getImage } from '../../utils/index';

/**
 * 绘制数学模块页眉的参数接口（尺寸除以3）
 */
interface drawBaseHeaderParams {
    canvas: WechatMiniprogram.Canvas;
    ctx: RenderingContext;
    headerType: PrintHeader;
    options: {
        appName: string;
        appHint: string;
        title: string;
        subTitle: string;
    };
    onHeaderDrawn?: (currentY: number) => void;
}

/**
 * 绘制数学模块完整页眉（尺寸除以3）
 */
export async function drawBaseHeader({
    canvas,
    ctx,
    headerType,
    options,
    onHeaderDrawn,
}: drawBaseHeaderParams): Promise<void> {
    const { appName, appHint, title, subTitle } = options;

    let titleX = 108; // 约109.33
    const titleY = 25; // 约26.67

    const logoX = 24; // 约26.67
    const logoY = 20; // 20
    const logoWidth = 65; // 约66.67
    const logoHeight = 65; // 约66.67

    // 根据 headerType 绘制 Logo 或调整标题位置
    switch (headerType) {
        case 'LogoImage': {
            const image = await getImage(
                canvas,
                '/assets/imgs/doodle-logo.png',
            );
            ctx.drawImage(image, logoX, logoY, logoWidth, logoHeight);
            break;
        }
        case 'noLogoImage': {
            titleX = 40;
            break;
        }
        case 'minimal': {
            titleX = 40;
            break;
        }
        default: {
            const image = await getMiniCodeImage(canvas);
            ctx.drawImage(image, logoX, logoY, logoWidth, logoHeight);
            break;
        }
    }

    // 绘制应用名称（字体大小除以3）
    ctx.font = 'bold 22px "Microsoft Yahei"';
    ctx.fillStyle = '#000';
    ctx.textAlign = 'left';
    ctx.textBaseline = 'top';
    ctx.fillText(appName, titleX, titleY);

    // 绘制应用提示（字体大小除以3）
    ctx.font = '16px "Microsoft Yahei"';
    ctx.fillStyle = '#666';
    ctx.fillText(appHint, titleX, 66);

    // 绘制标题（字体大小除以3）
    ctx.font = 'bold 22px "Microsoft Yahei"';
    ctx.fillStyle = '#000';
    ctx.fillText(title, 280, titleY);

    // 绘制副标题（字体大小除以3）
    ctx.font = '16px "Microsoft Yahei"';
    ctx.fillStyle = '#666';
    ctx.fillText(subTitle, 280, 66);

    // 调用回调函数
    if (onHeaderDrawn) {
        onHeaderDrawn(104);
    }
}

/**
 * 绘制数学模块迷你页眉的参数接口（尺寸除以3）
 */
interface drawBaseMiniHeaderParams {
    // canvas: WechatMiniprogram.Canvas;
    ctx: RenderingContext;
    options: {
        appName: string;
        title: string;
    };
    canvasWidth: number; // 逻辑像素宽度（已除以3）
    onHeaderDrawn?: (currentY: number) => void;
}

/**
 * 绘制数学模块迷你页眉（尺寸除以3）
 */
export function drawBaseMiniHeader({
    ctx,
    options,
    canvasWidth,
    onHeaderDrawn,
}: drawBaseMiniHeaderParams): void {
    const { appName, title } = options;
    const titleY = 46;
    const centerX = canvasWidth / 2;

    // 字体大小除以3
    ctx.font = 'bold 24px "Microsoft Yahei"'; // 64/3
    ctx.fillStyle = '#000';
    ctx.textAlign = 'center';
    ctx.fillText(appName + '    ' + title, centerX, titleY);

    // 调用回调函数，传递除以3后的currentY
    if (onHeaderDrawn) {
        onHeaderDrawn(60); // 约66.67
    }
}