"""
Tests for call flow models and serialization.
"""

import pytest

from models.call_flow import ActionType, CallFlow, CallFlowCreate, CallFlowStep, CallFlowSummary


class TestCallFlowStep:
    """Test CallFlowStep model."""

    def test_basic_dtmf_step(self):
        step = CallFlowStep(
            id="press_1",
            description="Press 1 for English",
            action=ActionType.DTMF,
            action_value="1",
            expect="for english|para español",
            next_step="main_menu",
        )
        assert step.id == "press_1"
        assert step.action == ActionType.DTMF
        assert step.action_value == "1"
        assert step.timeout == 30  # default

    def test_hold_step(self):
        step = CallFlowStep(
            id="hold_queue",
            description="On hold waiting for agent",
            action=ActionType.HOLD,
            timeout=7200,
            next_step="agent_connected",
            notes="Average hold: 25-45 min. Plays Vivaldi. Kill me.",
        )
        assert step.action == ActionType.HOLD
        assert step.timeout == 7200
        assert "Vivaldi" in step.notes

    def test_transfer_step(self):
        step = CallFlowStep(
            id="connected",
            description="Agent picked up!",
            action=ActionType.TRANSFER,
            action_value="sip_phone",
        )
        assert step.action == ActionType.TRANSFER


class TestCallFlow:
    """Test CallFlow model."""

    @pytest.fixture
    def sample_flow(self):
        return CallFlow(
            id="test-bank",
            name="Test Bank - Main Line",
            phone_number="+18005551234",
            description="Test bank IVR",
            steps=[
                CallFlowStep(
                    id="greeting",
                    description="Language selection",
                    action=ActionType.DTMF,
                    action_value="1",
                    expect="for english",
                    next_step="main_menu",
                ),
                CallFlowStep(
                    id="main_menu",
                    description="Main menu",
                    action=ActionType.LISTEN,
                    next_step="agent_request",
                    fallback_step="agent_request",
                ),
                CallFlowStep(
                    id="agent_request",
                    description="Request agent",
                    action=ActionType.DTMF,
                    action_value="0",
                    next_step="hold_queue",
                ),
                CallFlowStep(
                    id="hold_queue",
                    description="Hold queue",
                    action=ActionType.HOLD,
                    timeout=3600,
                    next_step="agent_connected",
                ),
                CallFlowStep(
                    id="agent_connected",
                    description="Agent connected",
                    action=ActionType.TRANSFER,
                    action_value="sip_phone",
                ),
            ],
            tags=["bank", "personal"],
            avg_hold_time=2100,
            success_rate=0.92,
        )

    def test_step_count(self, sample_flow):
        assert len(sample_flow.steps) == 5

    def test_get_step(self, sample_flow):
        step = sample_flow.get_step("hold_queue")
        assert step is not None
        assert step.action == ActionType.HOLD
        assert step.timeout == 3600

    def test_get_step_not_found(self, sample_flow):
        assert sample_flow.get_step("nonexistent") is None

    def test_first_step(self, sample_flow):
        first = sample_flow.first_step()
        assert first is not None
        assert first.id == "greeting"

    def test_steps_by_id(self, sample_flow):
        steps = sample_flow.steps_by_id()
        assert len(steps) == 5
        assert "greeting" in steps
        assert "agent_connected" in steps
        assert steps["agent_connected"].action == ActionType.TRANSFER

    def test_serialization_roundtrip(self, sample_flow):
        """Test JSON serialization and deserialization."""
        json_str = sample_flow.model_dump_json()
        restored = CallFlow.model_validate_json(json_str)
        assert restored.id == sample_flow.id
        assert len(restored.steps) == len(sample_flow.steps)
        assert restored.steps[0].id == "greeting"
        assert restored.avg_hold_time == 2100


class TestCallFlowCreate:
    """Test call flow creation model."""

    def test_minimal_create(self):
        create = CallFlowCreate(
            name="My Bank",
            phone_number="+18005551234",
            steps=[
                CallFlowStep(
                    id="start",
                    description="Start",
                    action=ActionType.HOLD,
                    next_step="end",
                ),
            ],
        )
        assert create.name == "My Bank"
        assert len(create.steps) == 1
        assert create.tags == []
        assert create.notes is None


class TestCallFlowSummary:
    """Test lightweight summary model."""

    def test_summary(self):
        summary = CallFlowSummary(
            id="chase-bank-main",
            name="Chase Bank - Main",
            phone_number="+18005551234",
            step_count=6,
            avg_hold_time=2100,
            success_rate=0.92,
            times_used=15,
            tags=["bank"],
        )
        assert summary.step_count == 6
        assert summary.success_rate == 0.92