Initial commit: Discord-Claude Gateway with event-driven agent runtime

src/cron-scheduler.ts

@@ -0,0 +1,112 @@
+import cron from "node-cron";
+import type { Event } from "./event-queue.js";
+
+export interface CronJob {
+  name: string;
+  expression: string;
+  instruction: string;
+}
+
+type EnqueueFn = (event: Omit<Event, "id" | "timestamp">) => Event | null;
+
+export class CronScheduler {
+  private tasks: Map<string, cron.ScheduledTask> = new Map();
+
+  parseConfig(content: string): CronJob[] {
+    const jobs: CronJob[] = [];
+    const lines = content.split("\n");
+
+    // Find the "## Cron Jobs" section
+    let inCronSection = false;
+    let currentName: string | null = null;
+    let currentExpression: string | null = null;
+    let currentInstruction: string | null = null;
+
+    for (const line of lines) {
+      // Detect start of "## Cron Jobs" section
+      const h2Match = line.match(/^##\s+(.+)$/);
+      if (h2Match) {
+        if (inCronSection) {
+          // We hit another ## heading — check if it's a ### job or end of section
+          // A ## heading ends the Cron Jobs section
+          if (currentName !== null && currentExpression !== null && currentInstruction !== null) {
+            jobs.push({ name: currentName, expression: currentExpression, instruction: currentInstruction });
+          }
+          currentName = null;
+          currentExpression = null;
+          currentInstruction = null;
+          inCronSection = false;
+        }
+        if (h2Match[1].trim() === "Cron Jobs") {
+          inCronSection = true;
+        }
+        continue;
+      }
+
+      if (!inCronSection) continue;
+
+      // Detect ### job name headers within the Cron Jobs section
+      const h3Match = line.match(/^###\s+(.+)$/);
+      if (h3Match) {
+        // Push previous job if complete
+        if (currentName !== null && currentExpression !== null && currentInstruction !== null) {
+          jobs.push({ name: currentName, expression: currentExpression, instruction: currentInstruction });
+        }
+        currentName = h3Match[1].trim();
+        currentExpression = null;
+        currentInstruction = null;
+        continue;
+      }
+
+      const cronMatch = line.match(/^Cron:\s*(.+)$/);
+      if (cronMatch && currentName !== null) {
+        currentExpression = cronMatch[1].trim();
+        continue;
+      }
+
+      const instructionMatch = line.match(/^Instruction:\s*(.+)$/);
+      if (instructionMatch && currentName !== null) {
+        currentInstruction = instructionMatch[1].trim();
+        continue;
+      }
+    }
+
+    // Push the last job if complete
+    if (inCronSection && currentName !== null && currentExpression !== null && currentInstruction !== null) {
+      jobs.push({ name: currentName, expression: currentExpression, instruction: currentInstruction });
+    }
+
+    return jobs;
+  }
+
+  start(jobs: CronJob[], enqueue: EnqueueFn): void {
+    for (const job of jobs) {
+      if (!cron.validate(job.expression)) {
+        console.warn(
+          `Cron job "${job.name}" has invalid cron expression "${job.expression}". Skipping.`
+        );
+        continue;
+      }
+
+      const task = cron.schedule(job.expression, () => {
+        enqueue({
+          type: "cron",
+          payload: {
+            instruction: job.instruction,
+            jobName: job.name,
+          },
+          source: "cron-scheduler",
+        });
+      });
+
+      this.tasks.set(job.name, task);
+    }
+  }
+
+  stop(): void {
+    for (const task of this.tasks.values()) {
+      task.stop();
+    }
+    this.tasks.clear();
+  }
+}