379 lines
8.4 KiB
TypeScript
379 lines
8.4 KiB
TypeScript
import { FolkShape } from "./folk-shape";
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import { css, html } from "./tags";
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const styles = css`
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:host {
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background: white;
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border-radius: 8px;
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box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
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min-width: 360px;
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min-height: 440px;
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}
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.header {
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display: flex;
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align-items: center;
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justify-content: space-between;
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padding: 8px 12px;
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background: linear-gradient(135deg, #0891b2, #06b6d4);
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color: white;
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border-radius: 8px 8px 0 0;
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font-size: 12px;
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font-weight: 600;
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cursor: move;
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}
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.header-title {
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display: flex;
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align-items: center;
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gap: 6px;
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}
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.header-actions {
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display: flex;
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gap: 4px;
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}
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.header-actions button {
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background: transparent;
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border: none;
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color: white;
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cursor: pointer;
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padding: 2px 6px;
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border-radius: 4px;
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font-size: 14px;
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}
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.header-actions button:hover {
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background: rgba(255, 255, 255, 0.2);
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}
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.content {
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display: flex;
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flex-direction: column;
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height: calc(100% - 36px);
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overflow: hidden;
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}
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.prompt-area {
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padding: 12px;
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border-bottom: 1px solid #e2e8f0;
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}
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.prompt-input {
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width: 100%;
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padding: 10px 12px;
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border: 2px solid #e2e8f0;
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border-radius: 8px;
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font-size: 13px;
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resize: none;
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outline: none;
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font-family: inherit;
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}
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.prompt-input:focus {
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border-color: #0891b2;
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}
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.controls {
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display: flex;
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gap: 8px;
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margin-top: 8px;
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}
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.generate-btn {
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flex: 1;
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padding: 8px 16px;
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background: linear-gradient(135deg, #0891b2, #06b6d4);
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color: white;
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border: none;
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border-radius: 6px;
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font-size: 13px;
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font-weight: 600;
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cursor: pointer;
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transition: opacity 0.2s;
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}
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.generate-btn:hover {
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opacity: 0.9;
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}
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.generate-btn:disabled {
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opacity: 0.5;
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cursor: not-allowed;
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}
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.preview-area {
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flex: 1;
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display: flex;
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align-items: center;
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justify-content: center;
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padding: 12px;
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overflow: hidden;
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}
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.preview-area img {
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max-width: 100%;
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max-height: 100%;
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border-radius: 8px;
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box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
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}
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.export-row {
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display: flex;
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gap: 8px;
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padding: 8px 12px;
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border-top: 1px solid #e2e8f0;
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}
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.export-btn {
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padding: 6px 12px;
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background: #334155;
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color: white;
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border: none;
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border-radius: 6px;
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font-size: 12px;
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cursor: pointer;
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text-decoration: none;
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}
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.export-btn:hover {
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background: #475569;
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}
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.export-btn.primary {
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background: #0891b2;
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}
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.export-btn.primary:hover {
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background: #0e7490;
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}
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.placeholder {
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flex: 1;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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color: #94a3b8;
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text-align: center;
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gap: 8px;
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}
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.placeholder-icon {
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font-size: 48px;
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opacity: 0.5;
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}
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.loading {
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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padding: 24px;
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gap: 12px;
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}
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.spinner {
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width: 32px;
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height: 32px;
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border: 3px solid #e2e8f0;
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border-top-color: #0891b2;
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border-radius: 50%;
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animation: spin 1s linear infinite;
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}
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@keyframes spin {
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to { transform: rotate(360deg); }
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}
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.error {
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color: #ef4444;
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padding: 12px;
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background: #fef2f2;
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border-radius: 6px;
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font-size: 13px;
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margin: 12px;
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}
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`;
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declare global {
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interface HTMLElementTagNameMap {
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"folk-freecad": FolkFreeCAD;
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}
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}
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export class FolkFreeCAD extends FolkShape {
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static override tagName = "folk-freecad";
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static {
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const sheet = new CSSStyleSheet();
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const parentRules = Array.from(FolkShape.styles.cssRules)
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.map((r) => r.cssText)
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.join("\n");
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const childRules = Array.from(styles.cssRules)
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.map((r) => r.cssText)
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.join("\n");
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sheet.replaceSync(`${parentRules}\n${childRules}`);
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this.styles = sheet;
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}
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#isLoading = false;
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#error: string | null = null;
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#previewUrl: string | null = null;
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#stepUrl: string | null = null;
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#stlUrl: string | null = null;
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#promptInput: HTMLTextAreaElement | null = null;
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#generateBtn: HTMLButtonElement | null = null;
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#previewArea: HTMLElement | null = null;
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#exportRow: HTMLElement | null = null;
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override createRenderRoot() {
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const root = super.createRenderRoot();
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const wrapper = document.createElement("div");
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wrapper.innerHTML = html`
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<div class="header">
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<span class="header-title">
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<span>\u{1F4D0}</span>
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<span>FreeCAD</span>
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</span>
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<div class="header-actions">
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<button class="close-btn" title="Close">\u00D7</button>
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</div>
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</div>
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<div class="content">
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<div class="prompt-area">
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<textarea class="prompt-input" placeholder="Describe the parametric part to generate...\ne.g. 'Enclosure box 80x50x30mm with 3mm walls, ventilation slots, and M3 screw bosses'" rows="3"></textarea>
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<div class="controls">
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<button class="generate-btn">\u{1F4D0} Generate CAD</button>
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</div>
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</div>
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<div class="preview-area">
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<div class="placeholder">
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<span class="placeholder-icon">\u{1F4D0}</span>
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<span>Describe a part and click Generate</span>
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</div>
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</div>
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<div class="export-row" style="display:none">
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<a class="export-btn primary step-dl" href="#" download>\u{2B07} STEP</a>
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<a class="export-btn stl-dl" href="#" download>\u{2B07} STL</a>
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</div>
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</div>
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`;
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const slot = root.querySelector("slot");
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const containerDiv = slot?.parentElement as HTMLElement;
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if (containerDiv) {
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containerDiv.replaceWith(wrapper);
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}
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this.#promptInput = wrapper.querySelector(".prompt-input");
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this.#generateBtn = wrapper.querySelector(".generate-btn");
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this.#previewArea = wrapper.querySelector(".preview-area");
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this.#exportRow = wrapper.querySelector(".export-row");
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const closeBtn = wrapper.querySelector(".close-btn") as HTMLButtonElement;
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this.#generateBtn?.addEventListener("click", (e) => {
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e.stopPropagation();
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this.#generate();
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});
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this.#promptInput?.addEventListener("keydown", (e) => {
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if (e.key === "Enter" && !e.shiftKey) {
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e.preventDefault();
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this.#generate();
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}
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});
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this.#promptInput?.addEventListener("pointerdown", (e) => e.stopPropagation());
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closeBtn.addEventListener("click", (e) => {
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e.stopPropagation();
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this.dispatchEvent(new CustomEvent("close"));
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});
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return root;
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}
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async #generate() {
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const prompt = this.#promptInput?.value.trim();
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if (!prompt || this.#isLoading) return;
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this.#isLoading = true;
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this.#error = null;
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if (this.#generateBtn) this.#generateBtn.disabled = true;
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if (this.#previewArea) {
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this.#previewArea.innerHTML = '<div class="loading"><div class="spinner"></div><span>Generating CAD model...</span></div>';
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}
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try {
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const res = await fetch("/api/freecad/generate", {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({ prompt }),
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});
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if (!res.ok) {
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const err = await res.json().catch(() => ({ error: res.statusText }));
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throw new Error(err.error || "Generation failed");
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}
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const data = await res.json();
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this.#previewUrl = data.preview_url || null;
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this.#stepUrl = data.step_url || null;
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this.#stlUrl = data.stl_url || null;
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this.#renderResult();
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} catch (err) {
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this.#error = err instanceof Error ? err.message : "Generation failed";
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if (this.#previewArea) {
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this.#previewArea.innerHTML = `<div class="error">${this.#escapeHtml(this.#error)}</div>`;
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}
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} finally {
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this.#isLoading = false;
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if (this.#generateBtn) this.#generateBtn.disabled = false;
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}
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}
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#renderResult() {
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if (this.#previewArea) {
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if (this.#previewUrl) {
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this.#previewArea.innerHTML = `<img src="${this.#escapeHtml(this.#previewUrl)}" alt="CAD Preview" />`;
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} else {
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this.#previewArea.innerHTML = '<div class="placeholder"><span class="placeholder-icon">\u2705</span><span>Model generated! Download files below.</span></div>';
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}
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}
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if (this.#exportRow && (this.#stepUrl || this.#stlUrl)) {
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this.#exportRow.style.display = "flex";
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const stepLink = this.#exportRow.querySelector(".step-dl") as HTMLAnchorElement;
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const stlLink = this.#exportRow.querySelector(".stl-dl") as HTMLAnchorElement;
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if (stepLink && this.#stepUrl) {
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stepLink.href = this.#stepUrl;
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stepLink.style.display = "";
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}
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if (stlLink && this.#stlUrl) {
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stlLink.href = this.#stlUrl;
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stlLink.style.display = "";
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}
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}
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}
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#escapeHtml(text: string): string {
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const div = document.createElement("div");
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div.textContent = text;
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return div.innerHTML;
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}
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override toJSON() {
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return {
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...super.toJSON(),
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type: "folk-freecad",
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previewUrl: this.#previewUrl,
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stepUrl: this.#stepUrl,
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stlUrl: this.#stlUrl,
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};
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}
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}
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