feat: add agent API and operational analytics

src/mcp/api-client.ts

@@ -0,0 +1,75 @@
+export interface RedditBotApiClientOptions {
+  baseUrl?: string;
+  token?: string;
+  fetchImplementation?: typeof fetch;
+}
+
+export class RedditBotApiError extends Error {
+  constructor(message: string, readonly status: number) {
+    super(message);
+    this.name = 'RedditBotApiError';
+  }
+}
+
+export class RedditBotApiClient {
+  private readonly baseUrl: string;
+  private readonly token: string;
+  private readonly fetchImplementation: typeof fetch;
+
+  constructor(options: RedditBotApiClientOptions = {}) {
+    this.baseUrl = (options.baseUrl ?? process.env.REDDIT_BOT_API_URL ?? 'http://127.0.0.1:3000').replace(/\/$/, '');
+    this.token = options.token
+      ?? process.env.REDDIT_BOT_AGENT_TOKEN
+      ?? process.env.REDDIT_BOT_AGENT_CONTROL_TOKEN
+      ?? process.env.REDDIT_BOT_AGENT_READ_TOKEN
+      ?? process.env.WEB_DASHBOARD_TOKEN
+      ?? '';
+    this.fetchImplementation = options.fetchImplementation ?? fetch;
+    if (!this.token) {
+      throw new Error('MCP server requires REDDIT_BOT_AGENT_TOKEN or WEB_DASHBOARD_TOKEN');
+    }
+    new URL(this.baseUrl);
+  }
+
+  get(path: string): Promise<unknown> {
+    return this.request(path);
+  }
+
+  post(path: string, body?: unknown): Promise<unknown> {
+    return this.request(path, {
+      method: 'POST',
+      ...(body === undefined ? {} : {
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(body),
+      }),
+    });
+  }
+
+  private async request(path: string, init: RequestInit = {}): Promise<unknown> {
+    const response = await this.fetchImplementation(`${this.baseUrl}${path}`, {
+      ...init,
+      headers: {
+        Authorization: `Bearer ${this.token}`,
+        Accept: 'application/json',
+        ...init.headers,
+      },
+    });
+    const text = await response.text();
+    let payload: unknown = null;
+    if (text) {
+      try {
+        payload = JSON.parse(text) as unknown;
+      } catch {
+        payload = text;
+      }
+    }
+    if (!response.ok) {
+      const message = typeof payload === 'object' && payload !== null && 'error' in payload
+        && typeof payload.error === 'string'
+        ? payload.error
+        : `RedditBot API request failed (${response.status})`;
+      throw new RedditBotApiError(message, response.status);
+    }
+    return payload;
+  }
+}