from fastapi.testclient import TestClient

from services.interaction_service.app import app as interaction_app
from services.ivr_service.app import app as ivr_app
from services.shared.security import issue_app_token
from services.voice_adapter_service.app import app as voice_app


def _admin_headers() -> dict[str, str]:
    return {"X-User": "admin", "X-Role": "admin"}


def _supervisor_headers() -> dict[str, str]:
    return {"X-User": "supervisor", "X-Role": "supervisor"}


def _valid_flow(queue_id: str, resolved_queue_id: str) -> dict:
    return {
        "name": "Queue IVR",
        "description": "DTMF flow",
        "queue_id": queue_id,
        "entry_node_id": "root",
        "flow_json": {
            "nodes": [
                {
                    "node_id": "root",
                    "prompt_text": "Press 1 for support",
                    "prompt_audio_key": "ivr/demo-root",
                    "is_terminal": False,
                    "invalid_target_node_id": "root",
                    "options": [
                        {"digit": "1", "target_node_id": "support"},
                    ],
                },
                {
                    "node_id": "support",
                    "prompt_text": "Routing to support",
                    "prompt_audio_key": "ivr/demo-support",
                    "is_terminal": True,
                    "outcome_code": "support_route",
                    "resolved_queue_id": resolved_queue_id,
                    "resolved_queue_code": "support",
                    "options": [],
                },
            ]
        },
        "is_active": True,
    }


def _trusted_service_headers(subject: str = "svc:asterisk-bridge") -> dict[str, str]:
    token = issue_app_token(
        subject=subject,
        username="asterisk-bridge",
        role="admin",
        auth_source="service",
        provider="asterisk-bridge",
    )
    return {"Authorization": f"Bearer {token}"}


def test_create_validate_and_activate_flows():
    client = TestClient(ivr_app)
    queue_id = "ivr_queue_validation"

    invalid = client.post(
        "/ivr/flows",
        headers=_admin_headers(),
        json={
            "name": "Broken Flow",
            "description": "",
            "queue_id": queue_id,
            "entry_node_id": "root",
            "flow_json": {"nodes": [{"node_id": "root", "is_terminal": False, "options": []}]},
            "is_active": True,
        },
    )
    assert invalid.status_code == 400

    first = client.post(
        "/ivr/flows",
        headers=_admin_headers(),
        json=_valid_flow(queue_id, "support_queue_a"),
    )
    assert first.status_code == 200
    first_flow_id = first.json()["flow_id"]
    assert first.json()["is_active"] is True

    second_payload = _valid_flow(queue_id, "support_queue_b")
    second_payload["name"] = "Replacement Flow"
    second = client.post("/ivr/flows", headers=_admin_headers(), json=second_payload)
    assert second.status_code == 200
    second_flow_id = second.json()["flow_id"]
    assert second_flow_id != first_flow_id

    first_detail = client.get(f"/ivr/flows/{first_flow_id}", headers=_supervisor_headers())
    assert first_detail.status_code == 200
    assert first_detail.json()["is_active"] is False

    activated = client.post(f"/ivr/flows/{first_flow_id}/activate", headers=_admin_headers())
    assert activated.status_code == 200
    assert activated.json()["is_active"] is True

    second_detail = client.get(f"/ivr/flows/{second_flow_id}", headers=_supervisor_headers())
    assert second_detail.status_code == 200
    assert second_detail.json()["is_active"] is False

    missing_queue_code = client.post(
        "/ivr/flows",
        headers=_admin_headers(),
        json={
            "name": "Broken Terminal",
            "description": "",
            "queue_id": queue_id,
            "entry_node_id": "root",
            "flow_json": {
                "nodes": [
                    {
                        "node_id": "root",
                        "prompt_text": "Press 1",
                        "is_terminal": False,
                        "options": [{"digit": "1", "target_node_id": "terminal"}],
                    },
                    {
                        "node_id": "terminal",
                        "prompt_text": "Done",
                        "is_terminal": True,
                        "outcome_code": "done",
                        "resolved_queue_id": "support_queue_a",
                        "options": [],
                    },
                ]
            },
            "is_active": False,
        },
    )
    assert missing_queue_code.status_code == 400
    assert "resolved_queue_code" in missing_queue_code.json()["detail"]


def test_flow_validation_accepts_prompt_sequence_without_single_prompt_key():
    client = TestClient(ivr_app)

    response = client.post(
        "/ivr/flows",
        headers=_admin_headers(),
        json={
            "name": "Prompt Sequence Flow",
            "description": "Mixed language prompt split into segments",
            "queue_id": "ivr_prompt_sequence_queue",
            "entry_node_id": "root",
            "flow_json": {
                "nodes": [
                    {
                        "node_id": "root",
                        "prompt_text": "Combined bilingual prompt",
                        "prompt_sequence": [
                            {
                                "prompt_audio_key": "ivr/demo-language-ru",
                                "prompt_text": "Russian segment",
                                "language": "ru",
                            },
                            {
                                "prompt_audio_key": "ivr/demo-language-kz",
                                "prompt_text": "Kazakh segment",
                                "language": "kz",
                            },
                        ],
                        "is_terminal": False,
                        "invalid_target_node_id": "root",
                        "options": [
                            {"digit": "1", "target_node_id": "terminal"},
                        ],
                    },
                    {
                        "node_id": "terminal",
                        "prompt_text": "Done",
                        "is_terminal": True,
                        "outcome_code": "done",
                        "resolved_queue_id": "support_queue_a",
                        "resolved_queue_code": "support",
                        "options": [],
                    },
                ]
            },
            "is_active": False,
        },
    )

    assert response.status_code == 200
    payload = response.json()
    assert payload["flow_json"]["nodes"][0]["prompt_sequence"][0]["prompt_audio_key"] == "ivr/demo-language-ru"
    assert payload["flow_json"]["nodes"][0]["prompt_sequence"][1]["prompt_audio_key"] == "ivr/demo-language-kz"


def test_ivr_session_runtime_emits_voice_event_and_timeline():
    ivr_client = TestClient(ivr_app)
    voice_client = TestClient(voice_app)
    interaction_client = TestClient(interaction_app)

    interaction = interaction_client.post(
        "/interactions",
        json={
            "channel": "voice",
            "subject": "IVR runtime trace",
            "queue_id": "ivr_runtime_queue",
            "priority": 3,
        },
        headers={"X-User": "operator", "X-Role": "operator"},
    )
    assert interaction.status_code == 200
    interaction_id = interaction.json()["interaction_id"]

    flow = ivr_client.post(
        "/ivr/flows",
        headers=_admin_headers(),
        json=_valid_flow("ivr_runtime_queue", "ivr_resolved_support"),
    )
    assert flow.status_code == 200
    flow_id = flow.json()["flow_id"]

    started = ivr_client.post(
        "/ivr/sessions/start",
        headers=_supervisor_headers(),
        json={
            "call_id": "call_ivr_runtime",
            "queue_id": "ivr_runtime_queue",
            "interaction_id": interaction_id,
        },
    )
    assert started.status_code == 200
    assert started.json()["session"]["flow_id"] == flow_id
    session_id = started.json()["session"]["session_id"]

    stepped = ivr_client.post(
        f"/ivr/sessions/{session_id}/dtmf",
        headers=_supervisor_headers(),
        json={"digit": "1"},
    )
    assert stepped.status_code == 200
    assert stepped.json()["completed"] is True
    assert stepped.json()["session"]["status"] == "completed"
    assert stepped.json()["session"]["outcome_code"] == "support_route"
    assert stepped.json()["session"]["resolved_queue_code"] == "support"

    repeated = ivr_client.post(
        f"/ivr/sessions/{session_id}/dtmf",
        headers=_supervisor_headers(),
        json={"digit": "1"},
    )
    assert repeated.status_code == 409

    voice_events = voice_client.get("/integrations/voice/events", headers=_admin_headers())
    assert voice_events.status_code == 200
    assert any(
        item["event_type"] == "ivr.completed"
        and item["payload"]["session_id"] == session_id
        and item["payload"]["flow_id"] == flow_id
        for item in voice_events.json()
    )

    timeline = interaction_client.get(f"/interactions/{interaction_id}/timeline")
    assert timeline.status_code == 200
    actions = [item["action"] for item in timeline.json()["events"]]
    assert "ivr.session.started" in actions
    assert "ivr.step.completed" in actions
    assert "ivr.completed" in actions


def test_no_input_runtime_path_supports_trusted_service_actor():
    ivr_client = TestClient(ivr_app)
    interaction_client = TestClient(interaction_app)

    interaction = interaction_client.post(
        "/interactions",
        json={
            "channel": "voice",
            "subject": "IVR no input trace",
            "queue_id": "ivr_no_input_queue",
            "priority": 3,
        },
        headers={"X-User": "operator", "X-Role": "operator"},
    )
    assert interaction.status_code == 200
    interaction_id = interaction.json()["interaction_id"]

    flow = ivr_client.post(
        "/ivr/flows",
        headers=_admin_headers(),
        json={
            "name": "No Input Flow",
            "description": "No input route",
            "queue_id": "ivr_no_input_queue",
            "entry_node_id": "root",
            "flow_json": {
                "nodes": [
                    {
                        "node_id": "root",
                        "prompt_text": "Press 1 for support",
                        "prompt_audio_key": "ivr/no-input-root",
                        "is_terminal": False,
                        "invalid_target_node_id": "root",
                        "no_input_target_node_id": "timeout",
                        "options": [{"digit": "1", "target_node_id": "support"}],
                    },
                    {
                        "node_id": "support",
                        "prompt_text": "Support queue",
                        "prompt_audio_key": "ivr/no-input-support",
                        "is_terminal": True,
                        "outcome_code": "support_route",
                        "resolved_queue_id": "ivr_support_queue",
                        "resolved_queue_code": "support",
                        "options": [],
                    },
                    {
                        "node_id": "timeout",
                        "prompt_text": "Routing to default queue",
                        "prompt_audio_key": "ivr/no-input-timeout",
                        "is_terminal": True,
                        "outcome_code": "timeout_route",
                        "resolved_queue_id": "ivr_timeout_queue",
                        "resolved_queue_code": "voice_lab",
                        "options": [],
                    },
                ]
            },
            "is_active": True,
        },
    )
    assert flow.status_code == 200

    started = ivr_client.post(
        "/ivr/sessions/start",
        headers=_trusted_service_headers(),
        json={
            "call_id": "call_ivr_no_input",
            "queue_id": "ivr_no_input_queue",
            "interaction_id": interaction_id,
        },
    )
    assert started.status_code == 200
    session_id = started.json()["session"]["session_id"]

    no_input = ivr_client.post(
        f"/ivr/sessions/{session_id}/no-input",
        headers=_trusted_service_headers(),
    )
    assert no_input.status_code == 200
    assert no_input.json()["completed"] is True
    assert no_input.json()["session"]["status"] == "completed"
    assert no_input.json()["session"]["resolved_queue_id"] == "ivr_timeout_queue"
    assert no_input.json()["session"]["resolved_queue_code"] == "voice_lab"

    blocked = ivr_client.post(
        "/ivr/sessions/start",
        headers=_trusted_service_headers("svc:not-allowed"),
        json={"call_id": "call_blocked", "queue_id": "ivr_no_input_queue"},
    )
    assert blocked.status_code == 403

    timeline = interaction_client.get(f"/interactions/{interaction_id}/timeline")
    assert timeline.status_code == 200
    actions = [item["action"] for item in timeline.json()["events"]]
    assert "ivr.step.no_input" in actions
    assert "ivr.completed" in actions


def test_multistep_language_selection_flow_routes_after_second_digit():
    ivr_client = TestClient(ivr_app)

    flow = ivr_client.post(
        "/ivr/flows",
        headers=_admin_headers(),
        json={
            "name": "Language IVR",
            "description": "Greeting and language choice before routing",
            "queue_id": "ivr_language_queue",
            "entry_node_id": "root",
            "flow_json": {
                "nodes": [
                    {
                        "node_id": "root",
                        "prompt_text": "Welcome. Press 1 for Russian. Press 2 for Kazakh.",
                        "prompt_audio_key": "ivr/language-root",
                        "is_terminal": False,
                        "invalid_target_node_id": "root",
                        "no_input_target_node_id": "root",
                        "options": [
                            {"digit": "1", "target_node_id": "menu_ru"},
                            {"digit": "2", "target_node_id": "menu_kz"},
                        ],
                    },
                    {
                        "node_id": "menu_ru",
                        "prompt_text": "Russian menu",
                        "prompt_audio_key": "ivr/language-menu-ru",
                        "is_terminal": False,
                        "invalid_target_node_id": "menu_ru",
                        "no_input_target_node_id": "menu_ru",
                        "options": [
                            {"digit": "1", "target_node_id": "sales_ru"},
                            {"digit": "2", "target_node_id": "support_ru"},
                        ],
                    },
                    {
                        "node_id": "menu_kz",
                        "prompt_text": "Kazakh menu",
                        "prompt_audio_key": "ivr/language-menu-kz",
                        "is_terminal": False,
                        "invalid_target_node_id": "menu_kz",
                        "no_input_target_node_id": "menu_kz",
                        "options": [
                            {"digit": "1", "target_node_id": "sales_kz"},
                            {"digit": "2", "target_node_id": "support_kz"},
                        ],
                    },
                    {
                        "node_id": "sales_ru",
                        "prompt_text": "Routing to sales",
                        "prompt_audio_key": "ivr/language-sales-ru",
                        "is_terminal": True,
                        "outcome_code": "sales_route_ru",
                        "resolved_queue_id": "ivr_sales_queue",
                        "resolved_queue_code": "ivr_sales_ai_ru",
                        "options": [],
                    },
                    {
                        "node_id": "support_ru",
                        "prompt_text": "Routing to support",
                        "prompt_audio_key": "ivr/language-support-ru",
                        "is_terminal": True,
                        "outcome_code": "support_route_ru",
                        "resolved_queue_id": "ivr_support_queue",
                        "resolved_queue_code": "ivr_support_ai_ru",
                        "options": [],
                    },
                    {
                        "node_id": "sales_kz",
                        "prompt_text": "Routing to sales",
                        "prompt_audio_key": "ivr/language-sales-kz",
                        "is_terminal": True,
                        "outcome_code": "sales_route_kz",
                        "resolved_queue_id": "ivr_sales_queue",
                        "resolved_queue_code": "ivr_sales_ai_kz",
                        "options": [],
                    },
                    {
                        "node_id": "support_kz",
                        "prompt_text": "Routing to support",
                        "prompt_audio_key": "ivr/language-support-kz",
                        "is_terminal": True,
                        "outcome_code": "support_route_kz",
                        "resolved_queue_id": "ivr_support_queue",
                        "resolved_queue_code": "ivr_support_ai_kz",
                        "options": [],
                    },
                ]
            },
            "is_active": True,
        },
    )
    assert flow.status_code == 200

    started = ivr_client.post(
        "/ivr/sessions/start",
        headers=_trusted_service_headers(),
        json={
            "call_id": "call_language_ivr",
            "queue_id": "ivr_language_queue",
        },
    )
    assert started.status_code == 200
    assert started.json()["completed"] is False
    assert started.json()["current_node"]["node_id"] == "root"
    session_id = started.json()["session"]["session_id"]

    select_language = ivr_client.post(
        f"/ivr/sessions/{session_id}/dtmf",
        headers=_trusted_service_headers(),
        json={"digit": "2"},
    )
    assert select_language.status_code == 200
    assert select_language.json()["completed"] is False
    assert select_language.json()["session"]["current_node_id"] == "menu_kz"
    assert select_language.json()["session"]["entered_digits"] == ["2"]

    choose_support = ivr_client.post(
        f"/ivr/sessions/{session_id}/dtmf",
        headers=_trusted_service_headers(),
        json={"digit": "2"},
    )
    assert choose_support.status_code == 200
    assert choose_support.json()["completed"] is True
    assert choose_support.json()["session"]["status"] == "completed"
    assert choose_support.json()["session"]["entered_digits"] == ["2", "2"]
    assert choose_support.json()["session"]["resolved_queue_id"] == "ivr_support_queue"
    assert choose_support.json()["session"]["resolved_queue_code"] == "ivr_support_ai_kz"
    assert choose_support.json()["session"]["outcome_code"] == "support_route_kz"


def test_start_without_active_flow_returns_404():
    client = TestClient(ivr_app)

    response = client.post(
        "/ivr/sessions/start",
        headers=_supervisor_headers(),
        json={"call_id": "call_missing_flow", "queue_id": "missing_queue"},
    )
    assert response.status_code == 404