import './index.css';
import type { ThemeConfig } from '../../themes/types';
import { IBimComponent } from '../../types/component';
import { localeManager, t } from '../../services/locale';
import { themeManager } from '../../services/theme';
import type { SectionPlanePanelOptions } from './types';
import { getIcon } from '../../utils/icon-manager';

/**
 * 拾取面剖切面板组件
 * 包含三个操作按钮：隐藏、反向、重置
 */
export class SectionPlanePanel implements IBimComponent {
    public element: HTMLElement;
    private options: SectionPlanePanelOptions;

    private isHidden: boolean = false;

    // DOM 引用
    private hideBtn!: HTMLButtonElement;
    private reverseBtn!: HTMLButtonElement;
    private resetBtn!: HTMLButtonElement;
    private hideLabelEl!: HTMLElement;
    private reverseLabelEl!: HTMLElement;
    private resetLabelEl!: HTMLElement;

    // 订阅清理
    private unsubscribeLocale: (() => void) | null = null;
    private unsubscribeTheme: (() => void) | null = null;

    constructor(options: SectionPlanePanelOptions = {}) {
        this.options = options;
        this.isHidden = options.defaultHidden ?? false;
        this.element = this.createDom();
    }

    public setHiddenState(isHidden: boolean): void {
        this.isHidden = isHidden;
        this.updateButtonStates();
    }

    public getHiddenState(): boolean {
        return this.isHidden;
    }

    private updateButtonStates(): void {
        this.hideBtn?.classList.toggle('active', this.isHidden);
    }

    /**
     * 初始化组件
     */
    public init(): void {
        // 订阅语言变更
        this.unsubscribeLocale = localeManager.subscribe(() => {
            this.setLocales();
        });

        // 订阅主题变更
        this.unsubscribeTheme = themeManager.subscribe((theme) => {
            this.setTheme(theme);
        });

        // 初始应用
        this.setLocales();
        this.setTheme(themeManager.getTheme());
    }

    /**
     * 设置主题
     */
    public setTheme(theme: ThemeConfig): void {
        const style = this.element.style;
        style.setProperty('--bim-bg-inset', theme.bgInset ?? '#152232');
        style.setProperty('--bim-border-default', theme.borderDefault ?? '#334155');
        style.setProperty('--bim-border-strong', theme.borderStrong ?? '#475569');
        style.setProperty('--bim-primary', theme.primary ?? '#3b82f6');
        style.setProperty('--bim-primary-subtle', theme.primarySubtle ?? 'rgba(59, 130, 246, 0.15)');
        style.setProperty('--bim-icon-default', theme.iconDefault ?? '#ffffff');
        style.setProperty('--bim-text-primary', theme.textPrimary ?? '#ffffff');
        style.setProperty('--bim-component-bg-hover', theme.componentBgHover ?? 'rgba(248, 250, 252, 0.06)');
    }

    /**
     * 设置语言
     */
    public setLocales(): void {
        this.hideLabelEl.textContent = t('sectionPlane.actions.hide');
        this.reverseLabelEl.textContent = t('sectionPlane.actions.reverse');
        this.resetLabelEl.textContent = t('sectionPlane.actions.reset');

        this.hideBtn.title = t('sectionPlane.actions.hide');
        this.reverseBtn.title = t('sectionPlane.actions.reverse');
        this.resetBtn.title = t('sectionPlane.actions.reset');
    }

    /**
     * 销毁组件
     */
    public destroy(): void {
        if (this.unsubscribeLocale) {
            this.unsubscribeLocale();
            this.unsubscribeLocale = null;
        }
        if (this.unsubscribeTheme) {
            this.unsubscribeTheme();
            this.unsubscribeTheme = null;
        }
        this.element.remove();
    }

    /**
     * 创建 DOM
     */
    private createDom(): HTMLElement {
        const root = document.createElement('div');
        root.className = 'section-plane-panel';

        // 隐藏按钮
        this.hideBtn = this.createButton(
            'hide',
            getIcon('隐藏'),
            () => {
                this.isHidden = !this.isHidden;
                this.updateButtonStates();
                this.options.onHideToggle?.(this.isHidden);
            }
        );

        // 反向按钮
        this.reverseBtn = this.createButton(
            'reverse',
            getIcon('反向'),
            () => {
                if (this.options.onReverse) {
                    this.options.onReverse();
                }
            }
        );

        // 重置按钮
        this.resetBtn = this.createButton(
            'reset',
            getIcon('重置'),
            () => {
                if (this.options.onReset) {
                    this.options.onReset();
                }
            }
        );

        root.appendChild(this.hideBtn);
        root.appendChild(this.reverseBtn);
        root.appendChild(this.resetBtn);

        return root;
    }

    /**
     * 创建按钮
     */
    private createButton(type: 'hide' | 'reverse' | 'reset', iconSvg: string, onClick: () => void): HTMLButtonElement {
        const btn = document.createElement('button');
        btn.type = 'button';
        btn.className = 'section-plane-btn';

        // 图标
        const icon = document.createElement('div');
        icon.className = 'section-plane-btn-icon';
        icon.innerHTML = iconSvg;
        btn.appendChild(icon);

        // 标签
        const label = document.createElement('div');
        label.className = 'section-plane-btn-label';
        btn.appendChild(label);

        // 保存 label 引用
        if (type === 'hide') {
            this.hideLabelEl = label;
        } else if (type === 'reverse') {
            this.reverseLabelEl = label;
        } else {
            this.resetLabelEl = label;
        }

        // 点击事件
        btn.addEventListener('click', onClick);

        return btn;
    }
}