from flask import Flask

from app.api import report_bp, simulation_bp
from app.api.auth import auth_bp
from app.db import Base, create_session_factory
from app.models.project import ProjectManager
from app.models.task import TaskManager
from app.services.identity import IdentityRepository, PasswordService
from app.services.report_agent import Report, ReportManager, ReportStatus
from app.services.simulation_manager import SimulationManager


PASSWORD = "correct horse battery staple"


def make_resource_app():
    from sqlalchemy import create_engine

    engine = create_engine("sqlite+pysqlite:///:memory:")
    Base.metadata.create_all(engine)
    session_factory = create_session_factory(engine)
    app = Flask(__name__)
    app.config.update(TESTING=True, SECRET_KEY="test-secret", SESSION_COOKIE_SECURE=False)
    app.extensions["crowdsight_session_factory"] = session_factory
    app.register_blueprint(auth_bp, url_prefix="/api/auth")
    app.register_blueprint(simulation_bp, url_prefix="/api/simulation")
    app.register_blueprint(report_bp, url_prefix="/api/report")

    with session_factory() as session:
        repo = IdentityRepository(session)
        organization = repo.create_organization(name="Org A", slug="org-a")
        user = repo.create_user(
            email="user-a@example.com",
            password_hash=PasswordService.hash_password(PASSWORD),
        )
        repo.create_membership(user.id, organization.id, "user")
        user_b = repo.create_user(
            email="user-b@example.com",
            password_hash=PasswordService.hash_password(PASSWORD),
        )
        repo.create_membership(user_b.id, organization.id, "user")
        session.commit()
    return app, engine, organization.id, user.id, user_b.id


def login(client):
    response = client.post(
        "/api/auth/login",
        json={"email": "user-a@example.com", "password": PASSWORD},
    )
    assert response.status_code == 200


def csrf_headers(client):
    return {"X-CSRF-Token": client.get_cookie("crowdsight_csrf").value}


def test_simulation_and_report_routes_require_authentication():
    app, engine, _organization_id, _user_id, _user_b_id = make_resource_app()
    try:
        client = app.test_client()
        protected_requests = [
            ("GET", "/api/simulation/list", None),
            ("GET", "/api/simulation/sim_other", None),
            ("POST", "/api/simulation/create", {"project_id": "project_other"}),
            ("GET", "/api/report/list", None),
            ("GET", "/api/report/report_other", None),
            ("POST", "/api/report/generate", {"simulation_id": "sim_other"}),
            ("POST", "/api/report/generate/status", {"task_id": "task_other"}),
        ]
        for method, path, payload in protected_requests:
            response = client.open(path, method=method, json=payload)
            assert response.status_code == 401, (method, path, response.status_code)
    finally:
        engine.dispose()


def test_authenticated_mutations_still_require_csrf():
    app, engine, _organization_id, _user_id, _user_b_id = make_resource_app()
    try:
        client = app.test_client()
        login(client)
        response = client.post(
            "/api/simulation/create",
            json={"project_id": "project_other"},
        )
        assert response.status_code == 403
        assert response.get_json()["error_code"] == "csrf_failed"

        response = client.post(
            "/api/report/generate",
            json={"simulation_id": "sim_other"},
            headers=csrf_headers(client),
        )
        assert response.status_code in {404, 400}
    finally:
        engine.dispose()


def test_user_cannot_read_or_create_from_another_users_simulation_and_report():
    app, engine, organization_id, user_a_id, user_b_id = make_resource_app()
    original_projects_dir = ProjectManager.PROJECTS_DIR
    original_simulations_dir = SimulationManager.SIMULATION_DATA_DIR
    original_reports_dir = ReportManager.REPORTS_DIR
    from tempfile import TemporaryDirectory

    with TemporaryDirectory() as temp_dir:
        try:
            ProjectManager.PROJECTS_DIR = f"{temp_dir}/projects"
            SimulationManager.SIMULATION_DATA_DIR = f"{temp_dir}/simulations"
            ReportManager.REPORTS_DIR = f"{temp_dir}/reports"

            project_a = ProjectManager.create_project(
                "A", organization_id=organization_id, owner_user_id=user_a_id
            )
            project_a.graph_id = "graph-a"
            ProjectManager.save_project(project_a)
            project_b = ProjectManager.create_project(
                "B", organization_id=organization_id, owner_user_id=user_b_id
            )
            project_b.graph_id = "graph-b"
            ProjectManager.save_project(project_b)

            manager = SimulationManager()
            simulation_a = manager.create_simulation(project_a.project_id, "graph-a")
            simulation_b = manager.create_simulation(project_b.project_id, "graph-b")
            report_b = Report(
                report_id="report-b",
                simulation_id=simulation_b.simulation_id,
                graph_id="graph-b",
                simulation_requirement="private requirement",
                status=ReportStatus.COMPLETED,
                markdown_content="private report",
                created_at="2026-08-23T00:00:00",
            )
            ReportManager.save_report(report_b)

            client = app.test_client()
            login(client)
            assert client.get(f"/api/simulation/{simulation_b.simulation_id}").status_code == 404
            listed_simulations = client.get("/api/simulation/list").get_json()["data"]
            assert all(item["simulation_id"] != simulation_b.simulation_id for item in listed_simulations)
            assert client.get(f"/api/report/{report_b.report_id}").status_code == 404
            listed_reports = client.get("/api/report/list").get_json()["data"]
            assert all(item["report_id"] != report_b.report_id for item in listed_reports)

            response = client.post(
                "/api/simulation/create",
                json={"project_id": project_b.project_id},
                headers=csrf_headers(client),
            )
            assert response.status_code == 404

            task_id_b = TaskManager().create_task(
                "report_generate",
                metadata={
                    "organization_id": organization_id,
                    "owner_user_id": user_b_id,
                    "simulation_id": simulation_b.simulation_id,
                },
            )

            response = client.post(
                "/api/report/generate/status",
                json={"task_id": task_id_b},
                headers=csrf_headers(client),
            )
            assert response.status_code == 404

        finally:
            ProjectManager.PROJECTS_DIR = original_projects_dir
            SimulationManager.SIMULATION_DATA_DIR = original_simulations_dir
            ReportManager.REPORTS_DIR = original_reports_dir
            engine.dispose()