import pytest
import os
import tempfile
from unittest.mock import patch, MagicMock, AsyncMock

# Override DB path before importing app
_test_db = os.path.join(tempfile.gettempdir(), "test_orchestrator.db")
os.environ["ORCH_DB_PATH"] = _test_db
os.environ["ORCH_PLANE_WEBHOOK_SECRET"] = ""
os.environ["ORCH_GITEA_WEBHOOK_SECRET"] = ""
os.environ["ORCH_REPOS_DIR"] = tempfile.gettempdir()
os.environ["ORCH_HOST_REPOS_DIR"] = "/home/slin/repos"
os.environ["ORCH_GITEA_TOKEN"] = "test-token"
os.environ["ORCH_PLANE_API_TOKEN"] = "test-token"
os.environ["ORCH_GITEA_OWNER"] = "admin"
os.environ["ORCH_DEFAULT_REPO"] = "enduro-trails"
# ORCH-6: register the test project so the project filter lets these fixtures
# through. proj-1 maps to enduro-trails/ET, preserving the ET-001/ET-002 asserts.
os.environ["ORCH_PROJECTS_JSON"] = (
    '[{"plane_project_id": "proj-1", "repo": "enduro-trails", '
    '"work_item_prefix": "ET", "name": "enduro-trails"}]'
)

from fastapi.testclient import TestClient
from src.main import app
from src.db import init_db, get_db


@pytest.fixture(autouse=True)
def setup_db():
    """Ensure DB tables exist before each test."""
    if os.path.exists(_test_db):
        os.unlink(_test_db)
    init_db()
    yield
    if os.path.exists(_test_db):
        os.unlink(_test_db)


client = TestClient(app)


def test_health():
    resp = client.get("/health")
    assert resp.status_code == 200
    assert resp.json()["status"] == "ok"
    assert resp.json()["service"] == "orchestrator"


def test_status_endpoint():
    resp = client.get("/status")
    assert resp.status_code == 200
    assert "active_tasks" in resp.json()


@patch("src.webhooks.plane._create_gitea_branch", new_callable=AsyncMock)
@patch("src.webhooks.plane._create_initial_docs", new_callable=AsyncMock)
def test_plane_webhook_creates_task(mock_docs, mock_branch):
    """work_item.created → task in DB with stage=analysis."""
    resp = client.post("/webhook/plane", json={
        "event": "work_item.created",
        "data": {"id": "test-123", "name": "Test task", "project": "proj-1"}
    })
    assert resp.status_code == 200
    assert resp.json()["status"] == "accepted"

    # Verify task was created
    conn = get_db()
    task = conn.execute("SELECT * FROM tasks WHERE plane_id = 'test-123'").fetchone()
    conn.close()
    assert task is not None
    assert task["stage"] == "analysis"
    assert task["work_item_id"] is not None
    assert "feature/" in task["branch"]


@patch("src.webhooks.plane._create_gitea_branch", new_callable=AsyncMock)
@patch("src.webhooks.plane._create_initial_docs", new_callable=AsyncMock)
def test_plane_webhook_generates_sequential_ids(mock_docs, mock_branch):
    """Multiple work items get sequential IDs."""
    client.post("/webhook/plane", json={
        "event": "work_item.created",
        "data": {"id": "item-1", "name": "First task", "project": "proj-1"}
    })
    client.post("/webhook/plane", json={
        "event": "work_item.created",
        "data": {"id": "item-2", "name": "Second task", "project": "proj-1"}
    })

    conn = get_db()
    tasks = conn.execute("SELECT work_item_id FROM tasks ORDER BY id").fetchall()
    conn.close()
    ids = [t["work_item_id"] for t in tasks]
    assert ids[0] == "ET-001"
    assert ids[1] == "ET-002"


@patch("src.webhooks.plane._create_gitea_branch", new_callable=AsyncMock)
@patch("src.webhooks.plane._create_initial_docs", new_callable=AsyncMock)
@patch("src.webhooks.plane.launcher")
def test_plane_approved_advances_stage(mock_launcher, mock_docs, mock_branch, tmp_path, monkeypatch):
    """Comment :approved: at stage=analysis → advance to architecture."""
    # Patch repos_dir for QG check
    monkeypatch.setattr("src.qg.checks.settings.repos_dir", str(tmp_path))

    # Create task first
    client.post("/webhook/plane", json={
        "event": "work_item.created",
        "data": {"id": "adv-001", "name": "Advance test", "project": "proj-1"}
    })

    # Get the task to find work_item_id
    conn = get_db()
    task = conn.execute("SELECT * FROM tasks WHERE plane_id = 'adv-001'").fetchone()
    conn.close()
    work_item_id = task["work_item_id"]

    # Create required analysis files
    wi_dir = tmp_path / "enduro-trails" / "docs" / "work-items" / work_item_id
    wi_dir.mkdir(parents=True)
    (wi_dir / "01-brd.md").write_text("# BRD")
    (wi_dir / "02-trz.md").write_text("# TRZ")
    (wi_dir / "03-acceptance-criteria.md").write_text("# AC")
    (wi_dir / "04-test-plan.yaml").write_text("tests: []")

    # Mock launcher
    mock_launcher.launch.return_value = 1

    # Send approved comment
    resp = client.post("/webhook/plane", json={
        "event": "comment.created",
        "data": {
            "work_item_id": "adv-001",
            "comment": "Looks good :approved:"
        }
    })
    assert resp.status_code == 200

    # Verify stage advanced
    conn = get_db()
    task = conn.execute("SELECT * FROM tasks WHERE plane_id = 'adv-001'").fetchone()
    conn.close()
    assert task["stage"] == "architecture"


@patch("src.webhooks.plane._create_gitea_branch", new_callable=AsyncMock)
@patch("src.webhooks.plane._create_initial_docs", new_callable=AsyncMock)
def test_plane_rejected_rolls_back(mock_docs, mock_branch):
    """Comment :rejected: rolls back stage."""
    # Create task
    client.post("/webhook/plane", json={
        "event": "work_item.created",
        "data": {"id": "rej-001", "name": "Reject test", "project": "proj-1"}
    })

    # Manually set stage to architecture
    conn = get_db()
    conn.execute("UPDATE tasks SET stage = 'architecture' WHERE plane_id = 'rej-001'")
    conn.commit()
    conn.close()

    # Send rejected comment
    resp = client.post("/webhook/plane", json={
        "event": "comment.created",
        "data": {
            "work_item_id": "rej-001",
            "comment": "Not ready :rejected:"
        }
    })
    assert resp.status_code == 200

    # Verify stage rolled back
    conn = get_db()
    task = conn.execute("SELECT * FROM tasks WHERE plane_id = 'rej-001'").fetchone()
    conn.close()
    assert task["stage"] == "analysis"


def test_gitea_webhook_push():
    """Push event is accepted."""
    resp = client.post(
        "/webhook/gitea",
        json={"ref": "refs/heads/feature/test", "repository": {"name": "enduro-trails"}, "commits": []},
        headers={"X-Gitea-Event": "push"}
    )
    assert resp.status_code == 200
    assert resp.json()["status"] == "accepted"


@patch("src.webhooks.gitea.launcher")
def test_gitea_push_with_adr_advances_stage(mock_launcher):
    """Push with ADR files at architecture stage → advance to development."""
    mock_launcher.launch.return_value = 1

    # Create a task at architecture stage
    conn = get_db()
    conn.execute(
        "INSERT INTO tasks (plane_id, work_item_id, repo, branch, stage) VALUES (?, ?, ?, ?, ?)",
        ("push-001", "ET-010", "enduro-trails", "feature/ET-010-test", "architecture"),
    )
    conn.commit()
    conn.close()

    # Push with ADR file
    resp = client.post(
        "/webhook/gitea",
        json={
            "ref": "refs/heads/feature/ET-010-test",
            "repository": {"name": "enduro-trails"},
            "commits": [
                {"added": ["docs/work-items/ET-010/06-adr/001-decision.md"], "modified": []}
            ],
        },
        headers={"X-Gitea-Event": "push"}
    )
    assert resp.status_code == 200

    # Verify stage advanced
    conn = get_db()
    task = conn.execute("SELECT * FROM tasks WHERE plane_id = 'push-001'").fetchone()
    conn.close()
    assert task["stage"] == "development"
    mock_launcher.launch.assert_called_once()


@patch("src.webhooks.gitea.check_ci_green")
@patch("src.webhooks.gitea.launcher")
def test_gitea_ci_success_advances_to_review(mock_launcher, mock_ci):
    """CI success at development stage → advance to review."""
    mock_ci.return_value = (True, "CI green")
    mock_launcher.launch.return_value = 2

    # Create a task at development stage
    conn = get_db()
    conn.execute(
        "INSERT INTO tasks (plane_id, work_item_id, repo, branch, stage) VALUES (?, ?, ?, ?, ?)",
        ("ci-001", "ET-011", "enduro-trails", "feature/ET-011-test", "development"),
    )
    conn.commit()
    conn.close()

    # CI status success
    resp = client.post(
        "/webhook/gitea",
        json={
            "state": "success",
            "branches": [{"name": "feature/ET-011-test"}],
            "repository": {"name": "enduro-trails"},
        },
        headers={"X-Gitea-Event": "status"}
    )
    assert resp.status_code == 200

    # Verify stage advanced
    conn = get_db()
    task = conn.execute("SELECT * FROM tasks WHERE plane_id = 'ci-001'").fetchone()
    conn.close()
    assert task["stage"] == "review"


def test_gitea_webhook_pr():
    """PR event is accepted."""
    resp = client.post(
        "/webhook/gitea",
        json={
            "action": "opened",
            "pull_request": {"head": {"ref": "feature/test"}, "number": 1},
            "repository": {"name": "enduro-trails"},
        },
        headers={"X-Gitea-Event": "pull_request"}
    )
    assert resp.status_code == 200
    assert resp.json()["status"] == "accepted"


def test_plane_webhook_event_logged():
    """Events are logged in the events table."""
    client.post("/webhook/plane", json={
        "event": "test.event",
        "data": {"foo": "bar"}
    })

    conn = get_db()
    event = conn.execute(
        "SELECT * FROM events WHERE event_type = 'test.event'"
    ).fetchone()
    conn.close()
    assert event is not None
    assert event["source"] == "plane"