"""Tests for LangGraph-based trading workflow.

This module tests the LangGraph workflow implementation including:
- State management
- Node functions
- Graph construction and execution
- End-to-end workflow runs
"""

import asyncio

import pytest

from openclaw.workflow.state import (
    TradingWorkflowState,
    create_initial_state,
    get_state_summary,
)
from openclaw.workflow.trading_workflow import TradingWorkflow, run_trading_workflow


class TestWorkflowState:
    """Test suite for workflow state management."""

    def test_create_initial_state(self):
        """Test initial state creation."""
        state = create_initial_state("AAPL", 1000.0)

        assert state["config"]["symbol"] == "AAPL"
        assert state["current_step"] == "START"
        assert state["completed_steps"] == []
        assert state["errors"] == []
        assert state["technical_report"] is None
        assert state["sentiment_report"] is None
        assert state["fundamental_report"] is None

    def test_create_initial_state_different_symbol(self):
        """Test initial state with different symbol."""
        state = create_initial_state("TSLA", 2000.0)

        assert state["config"]["symbol"] == "TSLA"
        assert state["config"]["market_analyst"]["agent_id"] == "market_analyst_TSLA"

    def test_get_state_summary_initial(self):
        """Test state summary for initial state."""
        state = create_initial_state("AAPL", 1000.0)
        summary = get_state_summary(state)

        assert summary["symbol"] == "AAPL"
        assert summary["current_step"] == "START"
        assert summary["has_technical"] is False
        assert summary["has_sentiment"] is False
        assert summary["has_fundamental"] is False
        assert summary["error_count"] == 0


class TestTradingWorkflow:
    """Test suite for TradingWorkflow class."""

    def test_workflow_initialization(self):
        """Test workflow initialization."""
        workflow = TradingWorkflow("AAPL", 1000.0)

        assert workflow.symbol == "AAPL"
        assert workflow.initial_capital == 1000.0
        assert workflow.enable_parallel is True

    def test_graph_build(self):
        """Test graph compilation."""
        workflow = TradingWorkflow("AAPL", 1000.0)

        # Build graph
        graph = workflow._build_graph()

        assert graph is not None

    def test_graph_property(self):
        """Test graph property access."""
        workflow = TradingWorkflow("AAPL", 1000.0)

        # Access graph property (should build on first access)
        graph = workflow.graph

        assert graph is not None
        # Second access should return cached graph
        assert workflow.graph is graph

    @pytest.mark.asyncio
    async def test_workflow_run_basic(self):
        """Test basic workflow execution."""
        workflow = TradingWorkflow("AAPL", 1000.0)

        final_state = await workflow.run(debug=True)

        assert final_state is not None
        assert "completed_steps" in final_state

    @pytest.mark.asyncio
    async def test_workflow_run_outputs_generated(self):
        """Test that workflow generates expected outputs."""
        workflow = TradingWorkflow("AAPL", 1000.0)

        final_state = await workflow.run()

        # Check that at least some analyses completed
        completed = final_state.get("completed_steps", [])
        assert len(completed) > 0

    def test_run_sync(self):
        """Test synchronous workflow execution."""
        workflow = TradingWorkflow("AAPL", 1000.0)

        final_state = workflow.run_sync()

        assert final_state is not None
        assert "completed_steps" in final_state

    def test_get_final_decision(self):
        """Test getting final decision from state."""
        workflow = TradingWorkflow("AAPL", 1000.0)

        final_state = workflow.run_sync()
        decision = workflow.get_final_decision(final_state)

        # Decision may be None if workflow didn't complete, but shouldn't error
        if decision:
            assert "symbol" in decision
            assert decision["symbol"] == "AAPL"

    def test_visualize(self):
        """Test workflow visualization generation."""
        workflow = TradingWorkflow("AAPL", 1000.0)

        mermaid = workflow.visualize()

        assert "flowchart" in mermaid
        assert "MarketAnalysis" in mermaid
        assert "SentimentAnalysis" in mermaid
        assert "FundamentalAnalysis" in mermaid
        assert "BullBearDebate" in mermaid
        assert "DecisionFusion" in mermaid
        assert "RiskAssessment" in mermaid


class TestWorkflowIntegration:
    """Integration tests for the complete workflow."""

    @pytest.mark.asyncio
    async def test_full_workflow_streaming(self):
        """Test workflow with streaming."""
        workflow = TradingWorkflow("MSFT", 1000.0)

        updates = []
        async for update in workflow.astream(debug=True):
            updates.append(update)

        assert len(updates) > 0

    def test_convenience_function(self):
        """Test the convenience function run_trading_workflow."""
        decision = run_trading_workflow("GOOGL", 1000.0, debug=False)

        assert decision is not None
        assert "symbol" in decision
        assert decision["symbol"] == "GOOGL"


class TestWorkflowEdgeCases:
    """Test edge cases and error handling."""

    def test_empty_symbol(self):
        """Test workflow with empty symbol."""
        workflow = TradingWorkflow("", 1000.0)

        final_state = workflow.run_sync()

        # Should still complete without errors
        assert final_state is not None

    def test_zero_capital(self):
        """Test workflow with zero capital."""
        workflow = TradingWorkflow("AAPL", 0.0)

        final_state = workflow.run_sync()

        # Should still complete
        assert final_state is not None

    @pytest.mark.asyncio
    async def test_multiple_workflows(self):
        """Test running multiple workflows concurrently."""
        workflow1 = TradingWorkflow("AAPL", 1000.0)
        workflow2 = TradingWorkflow("GOOGL", 1000.0)
        workflow3 = TradingWorkflow("MSFT", 1000.0)

        # Run all three concurrently
        results = await asyncio.gather(
            workflow1.run(),
            workflow2.run(),
            workflow3.run(),
        )

        assert len(results) == 3
        for result in results:
            assert result is not None


if __name__ == "__main__":
    pytest.main([__file__, "-v"])