/**
 * 测量对话框管理器
 * 负责管理测量工具对话框的显示、隐藏和测量面板的交互
 */
import { BaseDialogManager } from '../core/base-dialog-manager';
import { MeasurePanel } from '../components/measure-panel';
import type { MeasureConfig, MeasureMode, MeasureResult } from '../components/measure-panel/types';

/**
 * 测量对话框管理器
 * 继承自 BaseDialogManager，提供测量工具的对话框管理功能
 */
export class MeasureDialogManager extends BaseDialogManager {
    /** 测量面板实例 */
    private panel: MeasurePanel | null = null;
    /** 测量配置（单位、精度等） */
    private config: MeasureConfig | null = null;

    /** 对话框唯一标识 */
    protected get dialogId(): string {
        return 'measure-dialog';
    }

    /** 对话框标题（国际化 key） */
    protected get dialogTitle(): string {
        return 'measure.dialogTitle';
    }

    /** 对话框宽度 */
    protected get dialogWidth(): number {
        return 250;
    }

    /**
     * 创建对话框内容
     * 初始化测量面板并设置回调
     */
    protected createContent(): HTMLElement {
        this.panel = new MeasurePanel({
            defaultMode: 'distance',
            defaultExpanded: false,
            onModeChange: (mode) => {
                console.log('[MeasureDialogManager] 当前测量方式已切换：', mode);
                this.registry.engine3d?.activateMeasure(mode);
            },
            onClearAll: () => {
                console.log('[MeasureDialogManager] 删除全部');
                this.registry.engine3d?.clearAllMeasures();
            },
            onSettings: () => {
                console.log('[MeasureDialogManager] 打开设置');
            },
            onExpandedChange: () => {
                this.dialog?.fitHeight(false);
            }
        });
        this.panel.init();
        this.config = this.panel.getConfig();

        const panelWrapper = document.createElement('div');
        panelWrapper.style.padding = '12px';
        panelWrapper.appendChild(this.panel.element);

        return panelWrapper;
    }

    /** 对话框创建后的回调，自适应高度 */
    protected onDialogCreated(): void {
        this.dialog?.fitHeight(false);
    }

    /** 对话框关闭时的回调，取消工具栏按钮激活状态 */
    protected onDialogClose(): void {
        this.registry.toolbar?.setBtnActive('measure', false);
    }

    /** 销毁前的清理，停用测量功能并销毁面板 */
    protected onBeforeDestroy(): void {
        if (this.registry.engine3d) {
            this.registry.engine3d.deactivateMeasure();
        }
        if (this.panel) {
            this.panel.destroy();
            this.panel = null;
        }
    }

    /**
     * 获取当前激活的测量模式
     * @returns 当前测量模式，如 'distance'、'angle' 等
     */
    public getActiveMode(): MeasureMode | null {
        return this.panel ? this.panel.getActiveMode() : null;
    }

    /**
     * 切换测量模式
     * @param mode 目标测量模式
     */
    public switchMode(mode: MeasureMode): void {
        if (!this.panel) return;
        this.panel.switchMode(mode);
    }

    /**
     * 设置测量结果
     * @param result 测量结果对象
     */
    public setMeasureResult(result: MeasureResult | null): void {
        if (!this.panel) return;
        this.panel.setResult(result);
    }

    /**
     * 获取测量配置
     * @returns 测量配置副本
     */
    public getConfig(): MeasureConfig | null {
        if (this.panel) {
            this.config = this.panel.getConfig();
        }
        return this.config ? { ...this.config } : null;
    }

    /**
     * 设置测量配置
     * @param partial 部分配置
     * @param persist 是否持久化
     */
    public setConfig(partial: Partial<MeasureConfig>, persist: boolean = true): void {
        if (this.panel) {
            this.panel.setConfig(partial, persist);
            this.config = this.panel.getConfig();
            this.dialog?.fitHeight(false);
            return;
        }

        const prev = this.config;
        const next: MeasureConfig = {
            unit: partial.unit ?? prev?.unit ?? 'mm',
            precision: partial.precision ?? prev?.precision ?? 2
        };
        this.config = next;
    }

    /** 清除所有测量结果 */
    public clearAll(): void {
        if (!this.panel) return;
        this.panel.clearAll();
    }

    /** 打开测量设置面板 */
    public openSettings(): void {
        if (!this.panel) return;
        this.panel.openSettings();
    }
}