"""Unit tests for SalesAgent — plan, gather, reason, report, peer_bus, sweep."""
import datetime
import pytest
from unittest.mock import AsyncMock, MagicMock
from agent_service.agents.sales_agent import SalesAgent, SALES_TOOLS
from agent_service.agents.base_agent import AgentDirective, AgentReport, SweepReport


def _directive(intent='', context=None):
    return AgentDirective(
        directive_id='sales-d1', user_id='1', intent=intent,
        context=context or {}, agent_name='sales_agent',
    )


def _make_agent():
    agent = SalesAgent(odoo=MagicMock(), llm=MagicMock())
    agent._st = MagicMock()
    agent._st.get_sales_summary = AsyncMock(return_value={
        'order_count': 12, 'total_revenue': 85000.0
    })
    agent._st.get_quotations = AsyncMock(return_value=[])
    agent._st.get_sales_orders = AsyncMock(return_value=[])
    agent._st.get_customer_orders = AsyncMock(return_value=[])
    agent._st.confirm_quotation = AsyncMock(return_value=True)
    agent._st.update_order_note = AsyncMock(return_value=True)
    agent._st.flag_for_review = AsyncMock(return_value=True)
    agent._st.post_chatter_note = AsyncMock(return_value=True)
    return agent


# ── Meta ────────────────────────────────────────────────────────────────────

def test_tool_count():
    assert len(SALES_TOOLS) <= 8

def test_agent_name():
    assert SalesAgent.name == 'sales_agent'


# ── _plan ───────────────────────────────────────────────────────────────────

@pytest.mark.asyncio
async def test_plan_summary_intent():
    agent = _make_agent()
    plan = await agent._plan(_directive(intent='show sales summary'))
    assert plan['fetch_summary'] is True

@pytest.mark.asyncio
async def test_plan_revenue_intent():
    agent = _make_agent()
    plan = await agent._plan(_directive(intent='what is our revenue this month'))
    assert plan['fetch_summary'] is True

@pytest.mark.asyncio
async def test_plan_quotation_intent():
    agent = _make_agent()
    plan = await agent._plan(_directive(intent='list open quotations'))
    assert plan['fetch_quotations'] is True

@pytest.mark.asyncio
async def test_plan_order_intent():
    agent = _make_agent()
    plan = await agent._plan(_directive(intent='show all orders'))
    assert plan['fetch_orders'] is True

@pytest.mark.asyncio
async def test_plan_propagates_partner_and_dates():
    agent = _make_agent()
    plan = await agent._plan(_directive(context={'partner_id': 5, 'date_from': '2026-01-01'}))
    assert plan['partner_id'] == 5
    assert plan['date_from'] == '2026-01-01'


# ── _gather ─────────────────────────────────────────────────────────────────

@pytest.mark.asyncio
async def test_gather_summary_by_default():
    agent = _make_agent()
    ctx = {'plan': {'fetch_summary': True, 'fetch_quotations': False,
                    'fetch_orders': False, 'partner_id': None,
                    'date_from': None, 'date_to': None}}
    data = await agent._gather(ctx)
    assert 'summary' in data
    agent._st.get_sales_summary.assert_awaited_once()

@pytest.mark.asyncio
async def test_gather_quotations():
    agent = _make_agent()
    agent._st.get_quotations = AsyncMock(return_value=[{'id': 1}])
    ctx = {'plan': {'fetch_summary': False, 'fetch_quotations': True,
                    'fetch_orders': False, 'partner_id': None,
                    'date_from': None, 'date_to': None}}
    data = await agent._gather(ctx)
    assert 'quotations' in data

@pytest.mark.asyncio
async def test_gather_orders():
    agent = _make_agent()
    agent._st.get_sales_orders = AsyncMock(return_value=[{'id': 1}])
    ctx = {'plan': {'fetch_summary': False, 'fetch_quotations': False,
                    'fetch_orders': True, 'partner_id': None,
                    'date_from': None, 'date_to': None}}
    data = await agent._gather(ctx)
    assert 'orders' in data


# ── _reason ─────────────────────────────────────────────────────────────────

@pytest.mark.asyncio
async def test_reason_zero_revenue_escalates():
    agent = _make_agent()
    agent._gathered_data = {'summary': {'order_count': 0, 'total_revenue': 0.0}}
    analysis = await agent._reason({})
    assert len(analysis['escalations']) == 1
    assert 'no confirmed sales' in analysis['escalations'][0].lower()

@pytest.mark.asyncio
async def test_reason_positive_revenue_no_escalation():
    agent = _make_agent()
    agent._gathered_data = {'summary': {'order_count': 5, 'total_revenue': 10000.0}}
    analysis = await agent._reason({})
    assert analysis['escalations'] == []

@pytest.mark.asyncio
async def test_reason_no_summary_no_escalation():
    agent = _make_agent()
    agent._gathered_data = {'quotations': []}
    analysis = await agent._reason({})
    assert analysis['escalations'] == []


# ── _report ─────────────────────────────────────────────────────────────────

@pytest.mark.asyncio
async def test_report_includes_revenue():
    agent = _make_agent()
    agent._gathered_data = {'summary': {'order_count': 12, 'total_revenue': 85000.0}}
    agent._escalations_list = []
    report = await agent._report({})
    assert isinstance(report, AgentReport)
    assert '12' in report.summary
    assert '85000' in report.summary

@pytest.mark.asyncio
async def test_report_fallback_message():
    agent = _make_agent()
    agent._gathered_data = {}
    agent._escalations_list = []
    report = await agent._report({})
    assert 'complete' in report.summary.lower() or 'sales' in report.summary.lower()


# ── _dispatch_tool ───────────────────────────────────────────────────────────

@pytest.mark.asyncio
async def test_dispatch_get_sales_summary():
    agent = _make_agent()
    await agent._dispatch_tool('get_sales_summary', {})
    agent._st.get_sales_summary.assert_awaited_once()

@pytest.mark.asyncio
async def test_dispatch_confirm_quotation():
    agent = _make_agent()
    await agent._dispatch_tool('confirm_quotation', {'order_id': 7})
    agent._st.confirm_quotation.assert_awaited_once_with(order_id=7)

@pytest.mark.asyncio
async def test_dispatch_unknown_raises():
    agent = _make_agent()
    with pytest.raises(ValueError, match='Unknown tool'):
        await agent._dispatch_tool('nonexistent', {})


# ── handle_peer_request ──────────────────────────────────────────────────────

@pytest.mark.asyncio
async def test_peer_sales_summary():
    agent = _make_agent()
    result = await agent.handle_peer_request('sales_summary', {}, 'dir-1')
    assert 'order_count' in result or 'total_revenue' in result

@pytest.mark.asyncio
async def test_peer_customer_orders():
    agent = _make_agent()
    agent._st.get_customer_orders = AsyncMock(return_value=[{'id': 1}])
    result = await agent.handle_peer_request('customer_orders', {'partner_id': 10}, 'dir-1')
    assert 'orders' in result
    assert len(result['orders']) == 1

@pytest.mark.asyncio
async def test_peer_unknown_returns_error():
    agent = _make_agent()
    result = await agent.handle_peer_request('bad_type', {}, 'dir-1')
    assert 'error' in result


# ── sweep ────────────────────────────────────────────────────────────────────

@pytest.mark.asyncio
async def test_sweep_finds_expired_quotations():
    agent = _make_agent()
    yesterday = str((datetime.date.today() - datetime.timedelta(days=1)))
    agent._st.get_quotations = AsyncMock(return_value=[
        {'id': 1, 'partner_id': [5, 'ACME'], 'validity_date': yesterday}
    ])
    result = await agent.sweep()
    assert isinstance(result, SweepReport)
    assert len(result.findings) == 1
    assert result.findings[0]['type'] == 'expired_quotation'

@pytest.mark.asyncio
async def test_sweep_valid_quotations_no_findings():
    agent = _make_agent()
    future = str((datetime.date.today() + datetime.timedelta(days=14)))
    agent._st.get_quotations = AsyncMock(return_value=[
        {'id': 1, 'partner_id': [5, 'ACME'], 'validity_date': future}
    ])
    result = await agent.sweep()
    assert result.findings == []

@pytest.mark.asyncio
async def test_sweep_handles_exception():
    agent = _make_agent()
    agent._st.get_quotations = AsyncMock(side_effect=Exception('network'))
    result = await agent.sweep()
    assert result.error is not None