import { assertEquals } from "@std/assert";
import { getFetchCalls, mockFetch, restoreFetch } from "../helpers/api_mock.ts";

const BASE = "http://localhost/apps/admin/api/users";

const users = [
  { id: "dupont.jean", nom: "Dupont", prenom: "Jean", idRole: 1 },
  { id: "martin.alice", nom: "Martin", prenom: "Alice", idRole: 2 },
];

// --- GET /users ---

Deno.test("GET /users - returns all users", async () => {
  mockFetch({ [BASE]: users });
  try {
    const res = await fetch(BASE);
    assertEquals(res.status, 200);
    const data = await res.json();
    assertEquals(data.length, 2);
    assertEquals(data[0].id, "dupont.jean");
  } finally {
    restoreFetch();
  }
});

Deno.test("GET /users - filters by idRole", async () => {
  const filtered = users.filter((u) => u.idRole === 1);
  mockFetch({ [`${BASE}?idRole=1`]: filtered });
  try {
    const res = await fetch(`${BASE}?idRole=1`);
    assertEquals(res.status, 200);
    const data = await res.json();
    assertEquals(data.length, 1);
    assertEquals(data[0].idRole, 1);
  } finally {
    restoreFetch();
  }
});

// --- POST /users ---

Deno.test("POST /users - creates a user and returns 201", async () => {
  const newUser = { id: "durand.claire", nom: "Durand", prenom: "Claire", idRole: 1 };
  mockFetch({ [BASE]: { method: "POST", status: 201, body: newUser } });
  try {
    const res = await fetch(BASE, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify(newUser),
    });
    assertEquals(res.status, 201);
    const data = await res.json();
    assertEquals(data.id, "durand.claire");
    assertEquals(data.nom, "Durand");
  } finally {
    restoreFetch();
  }
});

Deno.test("POST /users - returns 409 on duplicate id", async () => {
  mockFetch({
    [BASE]: {
      method: "POST",
      status: 409,
      body: { error: "Un utilisateur avec cet identifiant existe déjà" },
    },
  });
  try {
    const res = await fetch(BASE, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify(users[0]),
    });
    assertEquals(res.status, 409);
    const data = await res.json();
    assertEquals(typeof data.error, "string");
  } finally {
    restoreFetch();
  }
});

Deno.test("POST /users - returns 400 on missing fields", async () => {
  mockFetch({ [BASE]: { method: "POST", status: 400 } });
  try {
    const res = await fetch(BASE, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({ id: "x" }),
    });
    assertEquals(res.status, 400);
  } finally {
    restoreFetch();
  }
});

// --- GET /users/{id} ---

Deno.test("GET /users/{id} - returns a user by id", async () => {
  mockFetch({ [`${BASE}/dupont.jean`]: users[0] });
  try {
    const res = await fetch(`${BASE}/dupont.jean`);
    assertEquals(res.status, 200);
    const data = await res.json();
    assertEquals(data.id, "dupont.jean");
    assertEquals(data.prenom, "Jean");
  } finally {
    restoreFetch();
  }
});

Deno.test("GET /users/{id} - returns 404 for unknown id", async () => {
  mockFetch({
    [`${BASE}/inconnu`]: { status: 404, body: { error: "Ressource introuvable" } },
  });
  try {
    const res = await fetch(`${BASE}/inconnu`);
    assertEquals(res.status, 404);
    const data = await res.json();
    assertEquals(typeof data.error, "string");
  } finally {
    restoreFetch();
  }
});

// --- PUT /users/{id} ---

Deno.test("PUT /users/{id} - updates a user", async () => {
  const updated = { ...users[0], prenom: "Jean-Pierre" };
  mockFetch({
    [`${BASE}/dupont.jean`]: { method: "PUT", status: 200, body: updated },
  });
  try {
    const res = await fetch(`${BASE}/dupont.jean`, {
      method: "PUT",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({ nom: "Dupont", prenom: "Jean-Pierre", idRole: 1 }),
    });
    assertEquals(res.status, 200);
    const data = await res.json();
    assertEquals(data.prenom, "Jean-Pierre");
  } finally {
    restoreFetch();
  }
});

Deno.test("PUT /users/{id} - returns 404 for unknown id", async () => {
  mockFetch({
    [`${BASE}/inconnu`]: {
      method: "PUT",
      status: 404,
      body: { error: "Ressource introuvable" },
    },
  });
  try {
    const res = await fetch(`${BASE}/inconnu`, {
      method: "PUT",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({ nom: "X", prenom: "Y", idRole: 1 }),
    });
    assertEquals(res.status, 404);
  } finally {
    restoreFetch();
  }
});

// --- DELETE /users/{id} ---

Deno.test("DELETE /users/{id} - deletes a user and returns 204", async () => {
  mockFetch({
    [`${BASE}/dupont.jean`]: { method: "DELETE", status: 204 },
  });
  try {
    const res = await fetch(`${BASE}/dupont.jean`, { method: "DELETE" });
    assertEquals(res.status, 204);
  } finally {
    restoreFetch();
  }
});

Deno.test("DELETE /users/{id} - returns 404 for unknown id", async () => {
  mockFetch({
    [`${BASE}/inconnu`]: {
      method: "DELETE",
      status: 404,
      body: { error: "Ressource introuvable" },
    },
  });
  try {
    const res = await fetch(`${BASE}/inconnu`, { method: "DELETE" });
    assertEquals(res.status, 404);
  } finally {
    restoreFetch();
  }
});

// --- getFetchCalls ---

Deno.test("GET /users - call is tracked", async () => {
  mockFetch({ [BASE]: users });
  try {
    await fetch(BASE);
    const calls = getFetchCalls();
    assertEquals(calls.length, 1);
    assertEquals(calls[0].method, "GET");
  } finally {
    restoreFetch();
  }
});