import { Hono } from "hono";
import { logger } from "hono/logger";
import { serve } from "@hono/node-server";
import cron from "node-cron";

import { loadConfig } from "./config.js";
import { CoderClient } from "./services/coder.js";
import { GiteaClient } from "./services/gitea.js";
import { TaskQueue } from "./queue.js";

import { issueTriage } from "./handlers/issue-triage.js";
import { issueLabel } from "./handlers/issue-label.js";
import { issueComment } from "./handlers/issue-comment.js";
import { prReview } from "./handlers/pr-review.js";
import { prRework } from "./handlers/pr-rework.js";
import { release } from "./handlers/release.js";
import { runMaintenance, type MaintenanceRepo } from "./handlers/maintenance.js";

// ---------------------------------------------------------------------------
// Bootstrap
// ---------------------------------------------------------------------------

const config = loadConfig();
const coderClient = new CoderClient(config);
const giteaClient = new GiteaClient(config);

const concurrency = parseInt(process.env.QUEUE_CONCURRENCY || "2", 10);
const queue = new TaskQueue(coderClient, giteaClient, concurrency);

const app = new Hono();
app.use("*", logger());

// ---------------------------------------------------------------------------
// Health check + queue status
// ---------------------------------------------------------------------------

app.get("/health", (c) => c.json({ status: "ok" }));
app.get("/queue", (c) => c.json(queue.status()));

// ---------------------------------------------------------------------------
// Webhook endpoints — same paths as the n8n webhooks so Gitea config
// can stay unchanged (just point to new host).
// ---------------------------------------------------------------------------

app.post("/webhook/gitea-issue-triage", issueTriage(config, queue));
app.post("/webhook/gitea-issue-label", issueLabel(config, queue));
app.post("/webhook/gitea-issue-comment", issueComment(config, queue));
app.post("/webhook/gitea-pr-review", prReview(config, queue, giteaClient));
app.post("/webhook/gitea-pr-review-rework", prRework(config, queue));
app.post("/webhook/gitea-release", release(config, queue));

// ---------------------------------------------------------------------------
// Task-complete callback — workspaces call this when done
// ---------------------------------------------------------------------------

app.post("/webhook/task-complete/:name", async (c) => {
  const name = c.req.param("name");
  console.log(`[callback] task-complete received for: ${name}`);
  const found = await queue.taskComplete(name);
  return c.json({ ok: true, found });
});

// ---------------------------------------------------------------------------
// Scheduled maintenance cron (Monday 9:00 AM)
// ---------------------------------------------------------------------------

const maintenanceRepos = parseMaintenanceRepos();
if (maintenanceRepos.length > 0) {
  const maintenanceFn = runMaintenance(config, queue, maintenanceRepos);

  cron.schedule("0 9 * * 1", () => {
    console.log("[cron] running weekly maintenance");
    maintenanceFn().catch((err) =>
      console.error("[cron] maintenance failed:", err),
    );
  });

  console.log(
    `Maintenance cron scheduled for ${maintenanceRepos.length} repo(s)`,
  );
}

// ---------------------------------------------------------------------------
// Start
// ---------------------------------------------------------------------------

// Reconcile queue state with Coder before accepting traffic
queue.reconcile().catch((err) =>
  console.error("[startup] reconcile failed:", err),
);

serve({ fetch: app.fetch, port: config.port }, (info) => {
  console.log(`SDLC Orchestrator listening on :${info.port} (concurrency: ${concurrency})`);
});

// ---------------------------------------------------------------------------
// Helpers
// ---------------------------------------------------------------------------

/**
 * Parse MAINTENANCE_REPOS env var.
 * Format: comma-separated "org/repo=clone_url" entries.
 * Example: "claude/babble=https://gitea.samson.media/claude/babble.git"
 */
function parseMaintenanceRepos(): MaintenanceRepo[] {
  const raw = process.env.MAINTENANCE_REPOS;
  if (!raw) return [];

  return raw.split(",").map((entry) => {
    const [fullName, cloneUrl] = entry.trim().split("=");
    const [org, repo] = fullName.split("/");
    return { org, repo, cloneUrl };
  });
}