"""End-to-end coverage for the passwordless user creation + emailed
set-password-link flow (also reused for password resets).
"""

import uuid
from unittest.mock import patch

import pytest


@pytest.fixture
def new_user_id(api, auth_headers):
    resp = api(
        "post", "/api/v1/users", auth_headers,
        json={"full_name": "Set Password User", "email": "setpw@test.com", "role": "viewer"},
    )
    assert resp.status_code == 201, resp.text
    return resp.json()["id"]


def test_create_user_automatically_sends_set_password_email(api, db, auth_headers):
    api(
        "patch", "/api/v1/system/email-webhook-config", auth_headers,
        json={"url": "https://example.com/power-automate-hook"},
    )

    with patch("app.services.webhook_email_service.requests.post") as mock_post:
        resp = api(
            "post", "/api/v1/users", auth_headers,
            json={"full_name": "Auto Send User", "email": "autosend@test.com", "role": "viewer"},
        )
    assert resp.status_code == 201, resp.text
    mock_post.assert_called_once()
    payload = mock_post.call_args.kwargs["json"]
    assert payload["to"] == "autosend@test.com"
    assert payload["subject"] == "Set Your Password"
    assert "token=" in payload["body"]

    from app.models.password_setup_token import PasswordSetupToken
    token_row = db.query(PasswordSetupToken).filter(
        PasswordSetupToken.user_id == uuid.UUID(resp.json()["id"]),
    ).first()
    assert token_row is not None


def test_create_user_succeeds_even_if_auto_send_fails(api, auth_headers):
    """No webhook configured yet — the automatic first-email attempt fails,
    but user creation itself must still succeed."""
    resp = api(
        "post", "/api/v1/users", auth_headers,
        json={"full_name": "No Webhook User", "email": "nowebhook@test.com", "role": "viewer"},
    )
    assert resp.status_code == 201, resp.text


def test_send_password_email_requires_webhook_configured(api, auth_headers, new_user_id):
    resp = api("post", f"/api/v1/users/{new_user_id}/send-password-email", auth_headers)
    assert resp.status_code == 400
    assert "webhook" in resp.text.lower()


def test_admin_can_configure_password_webhook(api, auth_headers):
    resp = api(
        "patch", "/api/v1/system/email-webhook-config", auth_headers,
        json={"url": "https://example.com/power-automate-hook"},
    )
    assert resp.status_code == 200, resp.text
    assert resp.json()["configured"] is True

    get_resp = api("get", "/api/v1/system/email-webhook-config", auth_headers)
    assert get_resp.json()["url"] == "https://example.com/power-automate-hook"


def test_admin_can_configure_webhook_api_key(api, auth_headers):
    resp = api(
        "patch", "/api/v1/system/email-webhook-config", auth_headers,
        json={"url": "https://example.com/power-automate-hook", "api_key": "super-secret-key"},
    )
    assert resp.status_code == 200, resp.text
    assert resp.json()["api_key_set"] is True
    # The key itself is never echoed back.
    assert "api_key" not in resp.json()
    assert "super-secret-key" not in resp.text


def test_send_password_email_sends_api_key_header(api, db, auth_headers, new_user_id):
    api(
        "patch", "/api/v1/system/email-webhook-config", auth_headers,
        json={"url": "https://example.com/power-automate-hook", "api_key": "super-secret-key"},
    )
    with patch("app.services.webhook_email_service.requests.post") as mock_post:
        api("post", f"/api/v1/users/{new_user_id}/send-password-email", auth_headers)
    call_kwargs = mock_post.call_args
    assert call_kwargs.kwargs["headers"] == {"x-api-key": "super-secret-key"}


def test_send_password_email_posts_to_webhook_and_issues_token(api, db, auth_headers, new_user_id):
    api(
        "patch", "/api/v1/system/email-webhook-config", auth_headers,
        json={"url": "https://example.com/power-automate-hook"},
    )

    with patch("app.services.webhook_email_service.requests.post") as mock_post:
        resp = api("post", f"/api/v1/users/{new_user_id}/send-password-email", auth_headers)
    assert resp.status_code == 200, resp.text
    mock_post.assert_called_once()
    call_kwargs = mock_post.call_args
    assert call_kwargs.args[0] == "https://example.com/power-automate-hook"
    payload = call_kwargs.kwargs["json"]
    assert payload["to"] == "setpw@test.com"
    assert payload["subject"] == "Set Your Password"
    assert "Hi Set Password User" in payload["body"]
    assert "token=" in payload["body"]
    assert "Purple Team Engineering" in payload["body"]

    from app.models.password_setup_token import PasswordSetupToken
    token_row = db.query(PasswordSetupToken).filter(PasswordSetupToken.user_id == uuid.UUID(new_user_id)).first()
    assert token_row is not None
    assert token_row.used_at is None


def test_send_password_email_fails_loudly_when_webhook_rejects(api, auth_headers, new_user_id):
    """A webhook that's reachable but rejects the request (bad URL/API key,
    wrong Power Automate config, etc.) must not be reported as a success —
    previously the HTTP response status was never checked."""
    api(
        "patch", "/api/v1/system/email-webhook-config", auth_headers,
        json={"url": "https://example.com/power-automate-hook"},
    )

    from unittest.mock import MagicMock

    fake_response = MagicMock(ok=False, status_code=404, text="not found")
    with patch("app.services.webhook_email_service.requests.post", return_value=fake_response):
        resp = api("post", f"/api/v1/users/{new_user_id}/send-password-email", auth_headers)
    assert resp.status_code == 400
    assert "failed to send" in resp.text.lower()


def test_send_password_email_resend_after_password_set_is_a_reset_email(api, db, auth_headers, new_user_id):
    """Once a user has already set their password, hitting 'Send Email'
    again must still actually send — as a password-reset email — not
    silently no-op."""
    api(
        "patch", "/api/v1/system/email-webhook-config", auth_headers,
        json={"url": "https://example.com/power-automate-hook"},
    )

    with patch("app.services.webhook_email_service.requests.post") as mock_post:
        resp = api("post", f"/api/v1/users/{new_user_id}/send-password-email", auth_headers)
    assert resp.status_code == 200, resp.text
    first_payload = mock_post.call_args.kwargs["json"]
    assert first_payload["subject"] == "Set Your Password"

    from app.models.password_setup_token import PasswordSetupToken
    token_row = db.query(PasswordSetupToken).filter(
        PasswordSetupToken.user_id == uuid.UUID(new_user_id),
    ).first()
    api(
        "post", "/api/v1/auth/set-password", {},
        json={"token": token_row.token, "new_password": "BrandNewPass123!@#"},
    )

    # Now the user has must_change_password=False — resending must still
    # go through, this time as a reset email.
    with patch("app.services.webhook_email_service.requests.post") as mock_post_2:
        resp2 = api("post", f"/api/v1/users/{new_user_id}/send-password-email", auth_headers)
    assert resp2.status_code == 200, resp2.text
    mock_post_2.assert_called_once()
    second_payload = mock_post_2.call_args.kwargs["json"]
    assert second_payload["subject"] == "Reset Your Password"

def test_set_password_with_valid_token_succeeds(api, db, auth_headers, new_user_id):
    api(
        "patch", "/api/v1/system/email-webhook-config", auth_headers,
        json={"url": "https://example.com/power-automate-hook"},
    )
    with patch("app.services.webhook_email_service.requests.post"):
        api("post", f"/api/v1/users/{new_user_id}/send-password-email", auth_headers)

    from app.models.password_setup_token import PasswordSetupToken
    token_row = db.query(PasswordSetupToken).filter(PasswordSetupToken.user_id == uuid.UUID(new_user_id)).first()

    validate = api("get", f"/api/v1/auth/set-password/validate?token={token_row.token}", {})
    assert validate.status_code == 200
    assert validate.json()["valid"] is True
    assert validate.json()["full_name"] == "Set Password User"

    resp = api(
        "post", "/api/v1/auth/set-password", {},
        json={"token": token_row.token, "new_password": "BrandNewPass123!@#"},
    )
    assert resp.status_code == 200, resp.text

    login = api(
        "post", "/api/v1/auth/login", {},
        data={"username": "setpw@test.com", "password": "BrandNewPass123!@#"},
    )
    assert login.status_code == 200, login.text


def test_set_password_token_cannot_be_reused(api, db, auth_headers, new_user_id):
    api(
        "patch", "/api/v1/system/email-webhook-config", auth_headers,
        json={"url": "https://example.com/power-automate-hook"},
    )
    with patch("app.services.webhook_email_service.requests.post"):
        api("post", f"/api/v1/users/{new_user_id}/send-password-email", auth_headers)

    from app.models.password_setup_token import PasswordSetupToken
    token_row = db.query(PasswordSetupToken).filter(PasswordSetupToken.user_id == uuid.UUID(new_user_id)).first()

    first = api(
        "post", "/api/v1/auth/set-password", {},
        json={"token": token_row.token, "new_password": "BrandNewPass123!@#"},
    )
    assert first.status_code == 200

    second = api(
        "post", "/api/v1/auth/set-password", {},
        json={"token": token_row.token, "new_password": "AnotherPass456!@#"},
    )
    assert second.status_code == 400


def test_set_password_invalid_token_rejected(api):
    validate = api("get", "/api/v1/auth/set-password/validate?token=not-a-real-token", {})
    assert validate.status_code == 200
    assert validate.json()["valid"] is False

    resp = api(
        "post", "/api/v1/auth/set-password", {},
        json={"token": "not-a-real-token", "new_password": "BrandNewPass123!@#"},
    )
    assert resp.status_code == 404


def test_password_webhook_config_requires_admin(api, red_lead_headers):
    resp = api("get", "/api/v1/system/email-webhook-config", red_lead_headers)
    assert resp.status_code == 403


def test_send_password_email_requires_admin(api, red_lead_headers, new_user_id):
    resp = api("post", f"/api/v1/users/{new_user_id}/send-password-email", red_lead_headers)
    assert resp.status_code == 403