"""ORCH-019 — bug-fast-track end-to-end / start_pipeline integration.

Covers (04-test-plan.yaml):
  TC-08  E2E: a bug task walks development -> review -> testing -> deploy-staging ->
         deploy -> done with EVERY edge gate executed, NEVER entering architecture.
  TC-09  start_pipeline: an issue with the `Bug` label (flag on, repo in scope) is
         created on the bug-fast-track (tasks.track='bug'); an issue without it is
         created on the full cycle (track='full').
  TC-10  Fail-safe: with bug_fast_track_enabled=False a `Bug`-labelled issue is
         created on the full cycle (track='full'), is_bug_task never consulted.
"""
import os
import tempfile

import pytest

_test_db = os.path.join(tempfile.gettempdir(), "test_bug_fast_track_e2e.db")
os.environ["ORCH_DB_PATH"] = _test_db
os.environ["ORCH_REPOS_DIR"] = tempfile.gettempdir()
os.environ.setdefault("ORCH_GITEA_TOKEN", "test-token")
os.environ.setdefault("ORCH_PLANE_API_TOKEN", "test-token")

import src.db as db  # noqa: E402
from src.db import init_db, get_db  # noqa: E402
from src import stage_engine, config as cfg  # noqa: E402
from src.stage_engine import advance_stage  # noqa: E402


@pytest.fixture(autouse=True)
def fresh_db(monkeypatch, tmp_path):
    dbfile = tmp_path / "e2e.db"
    monkeypatch.setattr(db.settings, "db_path", str(dbfile))
    monkeypatch.setattr(cfg.settings, "bug_fast_track_enabled", True, raising=False)
    monkeypatch.setattr(cfg.settings, "bug_fast_track_repos", "", raising=False)
    # Keep the edge sub-gates + self-deploy + serial gate inert so the PLAIN advance
    # path runs deterministically and offline (we assert routing + gate execution,
    # not the self-hosting deploy mechanics — those have their own suites).
    for flag in (
        "self_deploy_enabled", "security_gate_enabled", "merge_gate_enabled",
        "coverage_gate_enabled", "image_freshness_enabled",
        "post_deploy_monitor_enabled", "serial_gate_enabled",
    ):
        monkeypatch.setattr(cfg.settings, flag, False, raising=False)
    init_db()
    yield


@pytest.fixture(autouse=True)
def silence_side_effects(monkeypatch):
    for name in (
        "notify_stage_change", "notify_qg_failure", "notify_approve_requested",
        "send_telegram", "plane_notify_stage", "plane_notify_qg", "plane_add_comment",
        "set_issue_in_review", "set_issue_needs_input", "set_issue_in_progress",
        "set_issue_blocked", "set_issue_done", "set_issue_analysis",
        "set_issue_awaiting_deploy", "set_issue_deploying", "set_issue_monitoring",
        "set_issue_approved",
    ):
        monkeypatch.setattr(stage_engine, name, lambda *a, **k: None, raising=False)
    yield


def _make_task(work_item_id, stage="analysis", repo="orchestrator", track="full"):
    conn = get_db()
    cur = conn.execute(
        "INSERT INTO tasks (plane_id, work_item_id, repo, branch, stage, title, track) "
        "VALUES (?, ?, ?, ?, ?, ?, ?)",
        (work_item_id, work_item_id, repo, f"feature/{work_item_id}", stage, work_item_id, track),
    )
    tid = cur.lastrowid
    conn.commit()
    conn.close()
    return tid


# --- TC-08: E2E walk, architecture skipped, every gate executed ------------
def test_tc08_bug_task_full_walk_skips_architecture(monkeypatch):
    tid = _make_task("ORCH-e2e", stage="analysis", track="bug")
    invoked = []

    # Record + pass every registered edge gate. check_analysis_approved is NOT in
    # this map: with finished_agent=None it is satisfied as approved-via-status
    # (no call). check_architecture_done MUST never be invoked.
    def _passing(name):
        def _fn(*a, **k):
            invoked.append(name)
            return (True, f"{name} ok")
        return _fn

    for gate in (
        "check_ci_green", "check_reviewer_verdict", "check_tests_passed",
        "check_staging_status", "check_deploy_status", "check_architecture_done",
    ):
        monkeypatch.setitem(stage_engine.QG_CHECKS, gate, _passing(gate))

    visited = ["analysis"]
    wi, repo, branch = "ORCH-e2e", "orchestrator", "feature/ORCH-e2e"
    for _ in range(10):
        row = db.get_task_by_work_item_id(wi)
        cur = row["stage"]
        if cur in ("done", "cancelled"):
            break
        res = advance_stage(tid, cur, repo, wi, branch, finished_agent=None)
        if not res.advanced:
            break
        visited.append(res.to_stage)

    assert "architecture" not in visited, f"bug task must skip architecture: {visited}"
    assert visited[:3] == ["analysis", "development", "review"]
    assert visited[-1] == "done", f"task should reach done: {visited}"
    # Every downstream edge gate ran; the architecture gate never did.
    for gate in ("check_ci_green", "check_reviewer_verdict", "check_tests_passed",
                 "check_staging_status", "check_deploy_status"):
        assert gate in invoked, f"gate {gate} must execute on the bug track"
    assert "check_architecture_done" not in invoked


# --- TC-09 / TC-10: start_pipeline classification --------------------------
async def _drive_start_pipeline(monkeypatch, *, is_bug: bool, enabled: bool):
    from src.webhooks import plane
    from src import plane_sync, bug_fast_track
    from src.projects import ProjectConfig

    monkeypatch.setattr(cfg.settings, "bug_fast_track_enabled", enabled, raising=False)

    proj = ProjectConfig(
        plane_project_id="proj-uuid", repo="orchestrator",
        work_item_prefix="ORCH", name="orch",
    )
    monkeypatch.setattr(plane, "get_project_by_plane_id", lambda pid: proj)
    monkeypatch.setattr(plane, "_qg0_errors", lambda name, desc: [])
    monkeypatch.setattr(plane, "ensure_unique_work_item_id", lambda wid, repo: wid)
    monkeypatch.setattr(plane_sync, "fetch_issue_sequence_id", lambda *a, **k: 777)
    monkeypatch.setattr(plane_sync, "set_issue_analysis", lambda *a, **k: None)
    monkeypatch.setattr(plane_sync, "add_comment", lambda *a, **k: None)
    monkeypatch.setattr(plane, "enqueue_job", lambda *a, **k: 1)

    async def _noop(*a, **k):
        return None
    monkeypatch.setattr(plane, "_create_gitea_branch", _noop)
    monkeypatch.setattr(plane, "_create_initial_docs", _noop)

    # Spy is_bug_task so we can assert it is/ isn't consulted; applies() stays REAL
    # (flag + self-hosting scope), so TC-10 proves the local short-circuit.
    seen = {"is_bug_task": 0}

    def _is_bug(wi, pid=None):
        seen["is_bug_task"] += 1
        return is_bug
    monkeypatch.setattr(bug_fast_track, "is_bug_task", _is_bug)

    data = {
        "id": "issue-uuid-1",
        "name": "Fix the crash on submit",
        "description_stripped": "A sufficiently long description for QG-0 to pass.",
        "project": "proj-uuid",
    }
    await plane.start_pipeline(data, project_id="proj-uuid")
    return seen


def test_tc09_bug_label_creates_bug_track(monkeypatch):
    import asyncio
    seen = asyncio.run(_drive_start_pipeline(monkeypatch, is_bug=True, enabled=True))
    assert seen["is_bug_task"] == 1  # applies() True -> classification consulted
    row = db.get_task_by_work_item_id("ORCH-777")
    assert row is not None
    assert row["track"] == "bug"


def test_tc09_no_label_creates_full_track(monkeypatch):
    import asyncio
    seen = asyncio.run(_drive_start_pipeline(monkeypatch, is_bug=False, enabled=True))
    assert seen["is_bug_task"] == 1
    row = db.get_task_by_work_item_id("ORCH-777")
    assert row["track"] == "full"


def test_tc10_killswitch_off_bug_label_full_cycle(monkeypatch):
    import asyncio
    seen = asyncio.run(_drive_start_pipeline(monkeypatch, is_bug=True, enabled=False))
    # applies() is False (kill-switch) -> is_bug_task short-circuited (zero network).
    assert seen["is_bug_task"] == 0
    row = db.get_task_by_work_item_id("ORCH-777")
    assert row["track"] == "full"