482 lines
10 KiB
TypeScript
482 lines
10 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: 400px;
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min-height: 450px;
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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, #0ea5e9, #6366f1);
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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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.messages {
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flex: 1;
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overflow-y: auto;
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padding: 12px;
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display: flex;
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flex-direction: column;
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gap: 12px;
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}
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.message {
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max-width: 85%;
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padding: 10px 14px;
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border-radius: 12px;
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font-size: 13px;
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line-height: 1.5;
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}
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.message.user {
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align-self: flex-end;
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background: linear-gradient(135deg, #0ea5e9, #6366f1);
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color: white;
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border-bottom-right-radius: 4px;
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}
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.message.assistant {
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align-self: flex-start;
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background: #f1f5f9;
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color: #1e293b;
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border-bottom-left-radius: 4px;
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}
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.message.streaming {
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background: #f1f5f9;
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}
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.message.streaming::after {
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content: "▌";
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animation: blink 1s infinite;
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}
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@keyframes blink {
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0%, 100% { opacity: 1; }
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50% { opacity: 0; }
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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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padding: 24px;
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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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.input-area {
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padding: 12px;
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border-top: 1px solid #e2e8f0;
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display: flex;
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flex-direction: column;
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gap: 8px;
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}
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.model-select {
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padding: 6px 10px;
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border: 2px solid #e2e8f0;
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border-radius: 6px;
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font-size: 12px;
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background: white;
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cursor: pointer;
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width: fit-content;
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}
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.prompt-row {
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display: flex;
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gap: 8px;
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}
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.prompt-input {
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flex: 1;
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padding: 10px 14px;
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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: #6366f1;
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}
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.send-btn {
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padding: 10px 16px;
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background: linear-gradient(135deg, #0ea5e9, #6366f1);
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color: white;
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border: none;
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border-radius: 8px;
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font-size: 16px;
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cursor: pointer;
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transition: opacity 0.2s;
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}
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.send-btn:hover {
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opacity: 0.9;
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}
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.send-btn:disabled {
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opacity: 0.5;
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cursor: not-allowed;
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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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.clear-btn {
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font-size: 12px;
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padding: 4px 8px;
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background: #f1f5f9;
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border: none;
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border-radius: 4px;
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cursor: pointer;
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color: #64748b;
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}
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.clear-btn:hover {
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background: #e2e8f0;
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}
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pre {
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background: #1e293b;
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color: #e2e8f0;
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padding: 12px;
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border-radius: 6px;
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overflow-x: auto;
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font-size: 12px;
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margin: 8px 0;
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}
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code {
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font-family: "Monaco", "Consolas", monospace;
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}
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`;
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export interface ChatMessage {
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id: string;
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role: "user" | "assistant";
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content: string;
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timestamp: Date;
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}
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declare global {
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interface HTMLElementTagNameMap {
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"folk-prompt": FolkPrompt;
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}
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}
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export class FolkPrompt extends FolkShape {
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static override tagName = "folk-prompt";
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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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#messages: ChatMessage[] = [];
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#isStreaming = false;
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#error: string | null = null;
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#model = "gemini-1.5-flash";
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#messagesEl: HTMLElement | null = null;
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#promptInput: HTMLTextAreaElement | null = null;
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#modelSelect: HTMLSelectElement | null = null;
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#sendBtn: HTMLButtonElement | null = null;
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get messages() {
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return this.#messages;
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}
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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>💬</span>
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<span>AI Prompt</span>
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</span>
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<div class="header-actions">
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<button class="clear-btn" title="Clear chat">Clear</button>
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<button class="close-btn" title="Close">×</button>
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</div>
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</div>
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<div class="content">
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<div class="messages">
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<div class="placeholder">
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<span class="placeholder-icon">🤖</span>
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<span>Ask me anything!</span>
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<span style="font-size: 11px;">I can help with code, writing, analysis, and more</span>
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</div>
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</div>
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<div class="input-area">
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<select class="model-select">
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<option value="gemini-1.5-flash">Gemini Flash</option>
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<option value="gemini-1.5-pro">Gemini Pro</option>
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<option value="claude-3-haiku">Claude Haiku</option>
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<option value="claude-3-sonnet">Claude Sonnet</option>
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</select>
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<div class="prompt-row">
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<textarea class="prompt-input" placeholder="Type your message..." rows="2"></textarea>
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<button class="send-btn">→</button>
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</div>
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</div>
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</div>
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`;
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// Replace the container div (slot's parent) with our wrapper
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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.#messagesEl = wrapper.querySelector(".messages");
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this.#promptInput = wrapper.querySelector(".prompt-input");
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this.#modelSelect = wrapper.querySelector(".model-select");
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this.#sendBtn = wrapper.querySelector(".send-btn");
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const clearBtn = wrapper.querySelector(".clear-btn") as HTMLButtonElement;
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const closeBtn = wrapper.querySelector(".close-btn") as HTMLButtonElement;
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// Send button
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this.#sendBtn?.addEventListener("click", (e) => {
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e.stopPropagation();
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this.#send();
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});
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// Enter key (without shift)
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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.#send();
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}
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});
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// Model select
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this.#modelSelect?.addEventListener("change", () => {
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this.#model = this.#modelSelect?.value || "gemini-1.5-flash";
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});
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// Clear button
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clearBtn.addEventListener("click", (e) => {
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e.stopPropagation();
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this.#clearChat();
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});
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// Prevent drag on inputs
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this.#promptInput?.addEventListener("pointerdown", (e) => e.stopPropagation());
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// Close button
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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 #send() {
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const content = this.#promptInput?.value.trim();
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if (!content || this.#isStreaming) return;
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// Add user message
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const userMessage: ChatMessage = {
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id: crypto.randomUUID(),
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role: "user",
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content,
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timestamp: new Date(),
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};
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this.#messages.push(userMessage);
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// Clear input
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if (this.#promptInput) this.#promptInput.value = "";
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this.#isStreaming = true;
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this.#error = null;
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if (this.#sendBtn) this.#sendBtn.disabled = true;
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this.#renderMessages(true);
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try {
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const response = await fetch("/api/prompt", {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({
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messages: this.#messages.map((m) => ({
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role: m.role,
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content: m.content,
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})),
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model: this.#model,
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}),
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});
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if (!response.ok) {
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throw new Error(`Request failed: ${response.statusText}`);
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}
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const result = await response.json();
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const assistantMessage: ChatMessage = {
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id: crypto.randomUUID(),
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role: "assistant",
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content: result.content || result.text || result.message,
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timestamp: new Date(),
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};
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this.#messages.push(assistantMessage);
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this.dispatchEvent(
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new CustomEvent("message", { detail: { message: assistantMessage } })
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);
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} catch (error) {
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this.#error = error instanceof Error ? error.message : "Request failed";
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// Remove the user message if we failed
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this.#messages.pop();
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} finally {
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this.#isStreaming = false;
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if (this.#sendBtn) this.#sendBtn.disabled = false;
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this.#renderMessages(false);
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}
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}
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#clearChat() {
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this.#messages = [];
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this.#error = null;
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this.#renderMessages(false);
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}
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#renderMessages(streaming: boolean) {
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if (!this.#messagesEl) return;
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if (this.#messages.length === 0 && !this.#error) {
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this.#messagesEl.innerHTML = `
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<div class="placeholder">
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<span class="placeholder-icon">🤖</span>
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<span>Ask me anything!</span>
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<span style="font-size: 11px;">I can help with code, writing, analysis, and more</span>
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</div>
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`;
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return;
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}
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let messagesHtml = this.#messages
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.map((msg) => `<div class="message ${msg.role}">${this.#formatContent(msg.content)}</div>`)
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.join("");
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if (streaming) {
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messagesHtml += '<div class="message assistant streaming"></div>';
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}
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if (this.#error) {
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messagesHtml += `<div class="error">${this.#escapeHtml(this.#error)}</div>`;
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}
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this.#messagesEl.innerHTML = messagesHtml;
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this.#messagesEl.scrollTop = this.#messagesEl.scrollHeight;
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}
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#formatContent(content: string): string {
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// Simple markdown-like formatting
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let html = this.#escapeHtml(content);
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// Code blocks
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html = html.replace(/```(\w*)\n([\s\S]*?)```/g, "<pre><code>$2</code></pre>");
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// Inline code
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html = html.replace(/`([^`]+)`/g, "<code>$1</code>");
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// Bold
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html = html.replace(/\*\*([^*]+)\*\*/g, "<strong>$1</strong>");
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// Line breaks
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html = html.replace(/\n/g, "<br>");
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return html;
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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-prompt",
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model: this.#model,
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messages: this.messages.map((msg) => ({
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...msg,
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timestamp: msg.timestamp.toISOString(),
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})),
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};
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}
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}
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