import { assertEquals } from "jsr:@std/assert@1.0.19";
import { handler } from "./main.ts";

// ── Routing ───────────────────────────────────────────────────────────────────

Deno.test("GET /register returns 405", async () => {
  const res = await handler(
    new Request("http://localhost/register", { method: "GET" }),
  );
  assertEquals(res.status, 405);
  const body = await res.json();
  assertEquals(body.error, "Method not allowed");
});

Deno.test("POST /unknown returns 404", async () => {
  const res = await handler(
    new Request("http://localhost/unknown", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({}),
    }),
  );
  assertEquals(res.status, 404);
  const body = await res.json();
  assertEquals(body.error, "Not found");
});

// ── /register validation ──────────────────────────────────────────────────────

Deno.test("POST /register rejects invalid JSON", async () => {
  const res = await handler(
    new Request("http://localhost/register", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: "not json",
    }),
  );
  assertEquals(res.status, 400);
  const body = await res.json();
  assertEquals(body.error, "Invalid JSON");
});

Deno.test("POST /register rejects missing did", async () => {
  const res = await handler(
    new Request("http://localhost/register", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({}),
    }),
  );
  assertEquals(res.status, 400);
  const body = await res.json();
  assertEquals(body.error, "Missing required field: did");
});

Deno.test("POST /register rejects non-DID string", async () => {
  const res = await handler(
    new Request("http://localhost/register", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ did: "alice.bsky.social" }),
    }),
  );
  assertEquals(res.status, 400);
  const body = await res.json();
  assertEquals(body.error, "Invalid DID format");
});

// ── /submit-trail validation ──────────────────────────────────────────────────

Deno.test("POST /submit-trail rejects missing did", async () => {
  const res = await handler(
    new Request("http://localhost/submit-trail", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ trail: { name: "Test Trail" } }),
    }),
  );
  assertEquals(res.status, 400);
  const body = await res.json();
  assertEquals(body.error, "Missing required field: did");
});

Deno.test("POST /submit-trail rejects missing trail.name", async () => {
  const res = await handler(
    new Request("http://localhost/submit-trail", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ did: "did:plc:test", trail: {} }),
    }),
  );
  assertEquals(res.status, 400);
  const body = await res.json();
  assertEquals(body.error, "Missing required field: trail.name");
});

Deno.test("POST /submit-trail rejects non-DID string", async () => {
  const res = await handler(
    new Request("http://localhost/submit-trail", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ did: "not-a-did", trail: { name: "Trail" } }),
    }),
  );
  assertEquals(res.status, 400);
  const body = await res.json();
  assertEquals(body.error, "Invalid DID format");
});