"""Tests for web/api.py — new task endpoints (pipeline, approve, reject, full)."""

import pytest
from pathlib import Path
from fastapi.testclient import TestClient

# Patch DB_PATH before importing app
import web.api as api_module

@pytest.fixture
def client(tmp_path):
    db_path = tmp_path / "test.db"
    api_module.DB_PATH = db_path
    from web.api import app
    c = TestClient(app)
    # Seed data
    c.post("/api/projects", json={"id": "p1", "name": "P1", "path": "/p1"})
    c.post("/api/tasks", json={"project_id": "p1", "title": "Fix bug"})
    return c


def test_get_task(client):
    r = client.get("/api/tasks/P1-001")
    assert r.status_code == 200
    assert r.json()["title"] == "Fix bug"


def test_get_task_not_found(client):
    r = client.get("/api/tasks/NOPE")
    assert r.status_code == 404


def test_task_pipeline_empty(client):
    r = client.get("/api/tasks/P1-001/pipeline")
    assert r.status_code == 200
    assert r.json() == []


def test_task_pipeline_with_logs(client):
    # Insert agent logs directly
    from core.db import init_db
    from core import models
    conn = init_db(api_module.DB_PATH)
    models.log_agent_run(conn, "p1", "debugger", "execute",
                         task_id="P1-001", output_summary="Found bug",
                         tokens_used=1000, duration_seconds=5, success=True)
    models.log_agent_run(conn, "p1", "tester", "execute",
                         task_id="P1-001", output_summary="Tests pass",
                         tokens_used=500, duration_seconds=3, success=True)
    conn.close()

    r = client.get("/api/tasks/P1-001/pipeline")
    assert r.status_code == 200
    steps = r.json()
    assert len(steps) == 2
    assert steps[0]["agent_role"] == "debugger"
    assert steps[0]["output_summary"] == "Found bug"
    assert steps[1]["agent_role"] == "tester"


def test_task_full(client):
    r = client.get("/api/tasks/P1-001/full")
    assert r.status_code == 200
    data = r.json()
    assert data["id"] == "P1-001"
    assert "pipeline_steps" in data
    assert "related_decisions" in data


def test_task_full_not_found(client):
    r = client.get("/api/tasks/NOPE/full")
    assert r.status_code == 404


def test_approve_task(client):
    # First set task to review
    from core.db import init_db
    from core import models
    conn = init_db(api_module.DB_PATH)
    models.update_task(conn, "P1-001", status="review")
    conn.close()

    r = client.post("/api/tasks/P1-001/approve", json={})
    assert r.status_code == 200
    assert r.json()["status"] == "done"

    # Verify task is done
    r = client.get("/api/tasks/P1-001")
    assert r.json()["status"] == "done"


def test_approve_with_decision(client):
    r = client.post("/api/tasks/P1-001/approve", json={
        "decision_title": "Use AbortController",
        "decision_description": "Fix race condition with AbortController",
        "decision_type": "decision",
    })
    assert r.status_code == 200
    assert r.json()["decision"] is not None
    assert r.json()["decision"]["title"] == "Use AbortController"


def test_approve_not_found(client):
    r = client.post("/api/tasks/NOPE/approve", json={})
    assert r.status_code == 404


def test_reject_task(client):
    from core.db import init_db
    from core import models
    conn = init_db(api_module.DB_PATH)
    models.update_task(conn, "P1-001", status="review")
    conn.close()

    r = client.post("/api/tasks/P1-001/reject", json={
        "reason": "Didn't fix the root cause"
    })
    assert r.status_code == 200
    assert r.json()["status"] == "pending"

    # Verify task is pending with review reason
    r = client.get("/api/tasks/P1-001")
    data = r.json()
    assert data["status"] == "pending"
    assert data["review"]["rejected"] == "Didn't fix the root cause"


def test_reject_not_found(client):
    r = client.post("/api/tasks/NOPE/reject", json={"reason": "bad"})
    assert r.status_code == 404


def test_task_pipeline_not_found(client):
    r = client.get("/api/tasks/NOPE/pipeline")
    assert r.status_code == 404


def test_running_endpoint_no_pipeline(client):
    r = client.get("/api/tasks/P1-001/running")
    assert r.status_code == 200
    assert r.json()["running"] is False


def test_running_endpoint_with_pipeline(client):
    from core.db import init_db
    from core import models
    conn = init_db(api_module.DB_PATH)
    models.create_pipeline(conn, "P1-001", "p1", "debug",
                           [{"role": "debugger"}])
    conn.close()

    r = client.get("/api/tasks/P1-001/running")
    assert r.status_code == 200
    assert r.json()["running"] is True


def test_running_endpoint_not_found(client):
    r = client.get("/api/tasks/NOPE/running")
    assert r.status_code == 404


def test_run_sets_in_progress(client):
    """POST /run should set task to in_progress immediately."""
    r = client.post("/api/tasks/P1-001/run")
    assert r.status_code == 202

    r = client.get("/api/tasks/P1-001")
    assert r.json()["status"] == "in_progress"


def test_run_not_found(client):
    r = client.post("/api/tasks/NOPE/run")
    assert r.status_code == 404


def test_run_with_allow_write(client):
    """POST /run with allow_write=true should be accepted."""
    r = client.post("/api/tasks/P1-001/run", json={"allow_write": True})
    assert r.status_code == 202


def test_run_with_empty_body(client):
    """POST /run with empty JSON body should default allow_write=false."""
    r = client.post("/api/tasks/P1-001/run", json={})
    assert r.status_code == 202


def test_run_without_body(client):
    """POST /run without body should be backwards-compatible."""
    r = client.post("/api/tasks/P1-001/run")
    assert r.status_code == 202


def test_project_summary_includes_review(client):
    from core.db import init_db
    from core import models
    conn = init_db(api_module.DB_PATH)
    models.update_task(conn, "P1-001", status="review")
    conn.close()

    r = client.get("/api/projects")
    projects = r.json()
    assert projects[0]["review_tasks"] == 1


def test_audit_not_found(client):
    r = client.post("/api/projects/NOPE/audit")
    assert r.status_code == 404


def test_audit_apply(client):
    """POST /audit/apply should mark tasks as done."""
    r = client.post("/api/projects/p1/audit/apply",
                    json={"task_ids": ["P1-001"]})
    assert r.status_code == 200
    assert r.json()["count"] == 1
    assert "P1-001" in r.json()["updated"]

    # Verify task is done
    r = client.get("/api/tasks/P1-001")
    assert r.json()["status"] == "done"


def test_audit_apply_not_found(client):
    r = client.post("/api/projects/NOPE/audit/apply",
                    json={"task_ids": ["P1-001"]})
    assert r.status_code == 404


def test_audit_apply_wrong_project(client):
    """Tasks not belonging to the project should be skipped."""
    r = client.post("/api/projects/p1/audit/apply",
                    json={"task_ids": ["WRONG-001"]})
    assert r.status_code == 200
    assert r.json()["count"] == 0


# ---------------------------------------------------------------------------
# PATCH /api/tasks/{task_id} — смена статуса
# ---------------------------------------------------------------------------

def test_patch_task_status(client):
    """PATCH должен обновить статус и вернуть задачу."""
    r = client.patch("/api/tasks/P1-001", json={"status": "review"})
    assert r.status_code == 200
    data = r.json()
    assert data["status"] == "review"
    assert data["id"] == "P1-001"


def test_patch_task_status_persisted(client):
    """После PATCH повторный GET должен возвращать новый статус."""
    client.patch("/api/tasks/P1-001", json={"status": "blocked"})
    r = client.get("/api/tasks/P1-001")
    assert r.status_code == 200
    assert r.json()["status"] == "blocked"


@pytest.mark.parametrize("status", ["pending", "in_progress", "review", "done", "blocked", "cancelled"])
def test_patch_task_all_valid_statuses(client, status):
    """Все 6 допустимых статусов должны приниматься."""
    r = client.patch("/api/tasks/P1-001", json={"status": status})
    assert r.status_code == 200
    assert r.json()["status"] == status


def test_patch_task_invalid_status(client):
    """Недопустимый статус → 400."""
    r = client.patch("/api/tasks/P1-001", json={"status": "flying"})
    assert r.status_code == 400


def test_patch_task_not_found(client):
    """Несуществующая задача → 404."""
    r = client.patch("/api/tasks/NOPE-999", json={"status": "done"})
    assert r.status_code == 404