import { getEnemy } from '@/game/enemy/battle';
import { formatDamage } from '../utils';
import { DamageEnemy } from '@/game/enemy/damage';

export function init() {
    core.maps._initDetachedBlock = function (
        info: BlockInfo,
        x: number,
        y: number,
        displayDamage: boolean = false
    ) {
        let headCanvas = null,
            bodyCanvas = '__body_' + x + '_' + y,
            damageCanvas = null;

        // head
        if (!info.bigImage && info.height > 32) {
            headCanvas = '__head_' + x + '_' + y;
            core.createCanvas(headCanvas, 0, 0, 32, info.height - 32, 55);
        }
        // body
        if (info.bigImage) {
            var bigImageInfo = this._getBigImageInfo(
                info.bigImage,
                info.face,
                info.posX
            );
            const { per_width, per_height } = bigImageInfo;
            core.createCanvas(bodyCanvas, 0, 0, per_width, per_height, 35);
        } else {
            core.createCanvas(bodyCanvas, 0, 0, 32, 32, 35);
        }

        // 伤害
        if (
            info.cls.indexOf('enemy') == 0 &&
            core.hasItem('book') &&
            displayDamage
        ) {
            const enemy =
                getEnemy(x, y) ??
                new DamageEnemy(core.material.enemys[info.id as EnemyIds]);
            const dam = enemy.calDamage();
            const { damage, color } = formatDamage(dam.damage);

            damageCanvas = '__damage_' + x + '_' + y;
            const ctx = core.createCanvas(damageCanvas, 0, 0, 32, 32, 65);
            ctx.textAlign = 'left';
            ctx.font = 'bold 11px Arial';
            core.fillBoldText(ctx, damage, 1, 31, color as string);
            if (core.flags.displayCritical) {
                const critical = enemy.calCritical(1);
                const atk = core.formatBigNumber(critical[0]?.delta, true);
                const display = atk === '???' ? '?' : atk;
                core.fillBoldText(ctx, display, 1, 21, '#FFFFFF');
            }
        }
        return {
            headCanvas,
            bodyCanvas,
            damageCanvas
        };
    };
}