"""Профиль: «о себе» (bio), аватар (загрузка/отдача/удаление), публичный профиль."""
from __future__ import annotations

from fastapi.testclient import TestClient

from tests.conftest import add_group_member, create_finished_match, csrf_headers, login

# Минимальный «PNG»: достаточно сигнатуры — сервер не декодирует, только сниффит тип.
PNG = b"\x89PNG\r\n\x1a\n" + b"\x00" * 64


def _use_tmp_uploads(monkeypatch, tmp_path) -> None:
    from app.core.config import settings

    monkeypatch.setattr(settings, "dev_upload_dir", str(tmp_path))


def _finished_match_for(client: TestClient, engine, me: dict) -> int:
    """Группа + второй игрок + одна завершённая партия (чтобы me попал в лидерборд)."""
    exps = [e["id"] for e in client.get("/api/expansions").json()]
    gid = client.post(
        "/api/groups", json={"name": "Группа", "expansion_ids": exps}, headers=csrf_headers(client)
    ).json()["id"]
    p2 = add_group_member(engine, gid, "Соперник")
    fids = [f["id"] for f in client.get(f"/api/groups/{gid}/factions").json()]
    create_finished_match(
        client,
        gid,
        [
            {"user_id": me["id"], "faction_id": fids[0], "place": 1},
            {"user_id": p2, "faction_id": fids[1], "place": 2},
        ],
    )
    return gid


def test_update_bio(client: TestClient):
    login(client, "Игрок")
    r = client.patch("/api/users/me/profile", json={"bio": "Люблю орков"}, headers=csrf_headers(client))
    assert r.status_code == 200, r.text
    assert r.json()["bio"] == "Люблю орков"
    # Слишком длинное «о себе» → 422.
    r = client.patch(
        "/api/users/me/profile", json={"bio": "x" * 501}, headers=csrf_headers(client)
    )
    assert r.status_code == 422, r.text


def test_avatar_upload_get_delete(client: TestClient, monkeypatch, tmp_path):
    _use_tmp_uploads(monkeypatch, tmp_path)
    me = login(client, "Аватарыч")

    # Загрузка валидного PNG → avatar_url выставлен.
    r = client.put(
        "/api/users/me/avatar",
        files={"file": ("a.png", PNG, "image/png")},
        headers=csrf_headers(client),
    )
    assert r.status_code == 200, r.text
    avatar_url = r.json()["avatar_url"]
    assert avatar_url and "/avatar?v=" in avatar_url

    # Отдача файла.
    g = client.get(f"/api/users/{me['id']}/avatar")
    assert g.status_code == 200, g.text
    assert g.content == PNG
    assert g.headers["content-type"] == "image/png"

    # Удаление → avatar_url пропадает, файл больше не отдаётся.
    r = client.delete("/api/users/me/avatar", headers=csrf_headers(client))
    assert r.status_code == 200 and r.json()["avatar_url"] is None, r.text
    assert client.get(f"/api/users/{me['id']}/avatar").status_code == 404


def test_avatar_rejects_non_image_and_oversize(client: TestClient, monkeypatch, tmp_path):
    _use_tmp_uploads(monkeypatch, tmp_path)
    login(client, "Игрок")

    r = client.put(
        "/api/users/me/avatar",
        files={"file": ("x.txt", b"not an image", "text/plain")},
        headers=csrf_headers(client),
    )
    assert r.status_code == 422, r.text

    big = PNG + b"\x00" * (2 * 1024 * 1024 + 10)
    r = client.put(
        "/api/users/me/avatar",
        files={"file": ("big.png", big, "image/png")},
        headers=csrf_headers(client),
    )
    assert r.status_code == 422, r.text


def test_public_profile(client: TestClient):
    me = login(client, "Публичный")
    client.patch("/api/users/me/profile", json={"bio": "Привет"}, headers=csrf_headers(client))

    r = client.get(f"/api/users/{me['id']}/profile")
    assert r.status_code == 200, r.text
    body = r.json()
    assert body["nickname"] == "Публичный"
    assert body["bio"] == "Привет"
    assert body["avatar_url"] is None
    assert "overall" in body["stats"]

    assert client.get("/api/users/999999/profile").status_code == 404


def test_leaderboard_includes_avatar_url(client: TestClient, engine, monkeypatch, tmp_path):
    _use_tmp_uploads(monkeypatch, tmp_path)
    me = login(client, "Топчик")
    _finished_match_for(client, engine, me)

    def entry_for(uid: int) -> dict:
        board = client.get("/api/stats/leaderboard").json()
        return next(e for e in board["entries"] + board["provisional"] if e["user_id"] == uid)

    assert entry_for(me["id"])["avatar_url"] is None  # без аватара — null

    client.put(
        "/api/users/me/avatar",
        files={"file": ("a.png", PNG, "image/png")},
        headers=csrf_headers(client),
    )
    assert "/avatar?v=" in entry_for(me["id"])["avatar_url"]  # после загрузки — ссылка