"""Integration tests for workflow CLI commands

These tests require coordinator-api running and validate workflow execution,
status tracking, and API interactions with actual service calls.
"""

import pytest
import json
import time
import httpx
from pathlib import Path
from click.testing import CliRunner
from unittest.mock import Mock, patch, MagicMock
from aitbc_cli.commands.workflow import workflow
from aitbc import AITBCHTTPClient, NetworkError


@pytest.fixture
def runner():
    """Create CLI runner"""
    return CliRunner()


@pytest.fixture
def mock_config():
    """Mock configuration"""
    config = Mock()
    config.coordinator_url = "http://127.0.0.1:18000"
    config.api_key = "test_api_key"
    return config


@pytest.fixture
def mock_http_client():
    """Mock HTTP client for coordinator-api"""
    client = MagicMock(spec=AITBCHTTPClient)
    return client


class TestWorkflowCommands:
    """Integration tests for workflow commands with coordinator-api"""

    @pytest.fixture
    def coordinator_available(self):
        """Skip test if coordinator-api is not running"""
        try:
            response = httpx.get("http://127.0.0.1:18000/health", timeout=2)
            if response.status_code == 200:
                return True
        except Exception:
            pytest.skip("coordinator-api not running at http://127.0.0.1:18000")

    def test_workflow_run_basic(self, runner, mock_config):
        """Test running a basic workflow"""
        result = runner.invoke(workflow, [
            'run', 'test_workflow'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result.exit_code == 0
        assert 'test_workflow' in result.output
        assert 'Running' in result.output

    def test_workflow_run_with_config(self, runner, mock_config, tmp_path):
        """Test running workflow with config file"""
        config_file = tmp_path / "workflow_config.yaml"
        config_file.write_text("param1: value1\nparam2: value2")
        
        result = runner.invoke(workflow, [
            'run', 'test_workflow',
            '--config', str(config_file)
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result.exit_code == 0
        assert 'test_workflow' in result.output
        assert str(config_file) in result.output

    def test_workflow_run_dry_run(self, runner, mock_config):
        """Test workflow dry run mode"""
        result = runner.invoke(workflow, [
            'run', 'test_workflow',
            '--dry-run'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result.exit_code == 0
        assert 'Dry run' in result.output
        assert 'without making changes' in result.output

    def test_workflow_list(self, runner, mock_config):
        """Test listing available workflows"""
        result = runner.invoke(workflow, [
            'list'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert result.exit_code == 0
        data = json.loads(result.output)
        assert 'workflows' in data or isinstance(data, list)
        
        # If it's a list, check structure
        if isinstance(data, list):
            assert len(data) > 0
            assert 'name' in data[0]
            assert 'status' in data[0]

    def test_workflow_list_table_format(self, runner, mock_config):
        """Test listing workflows in table format"""
        result = runner.invoke(workflow, [
            'list',
            '--format', 'table'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result.exit_code == 0
        assert 'Available workflows' in result.output

    def test_workflow_status(self, runner, mock_config):
        """Test getting workflow status"""
        result = runner.invoke(workflow, [
            'status', 'test_workflow'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result.exit_code == 0
        assert 'test_workflow' in result.output
        assert 'Status' in result.output

    def test_workflow_stop(self, runner, mock_config):
        """Test stopping a workflow"""
        result = runner.invoke(workflow, [
            'stop', 'test_workflow'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result.exit_code == 0
        assert 'test_workflow' in result.output
        assert 'Stop' in result.output

    @patch('aitbc_cli.commands.workflow.get_config')
    @patch('aitbc_cli.commands.workflow.AITBCHTTPClient')
    def test_workflow_run_via_coordinator_api(self, mock_http_client_class, mock_get_config, runner):
        """Test workflow execution via coordinator-api"""
        # Setup mocks
        mock_config = Mock()
        mock_config.coordinator_url = "http://127.0.0.1:18000"
        mock_get_config.return_value = mock_config
        
        mock_client = MagicMock()
        mock_http_client_class.return_value = mock_client
        mock_client.post.return_value = {
            "workflow_id": "wf_123",
            "status": "started",
            "execution_id": "exec_456"
        }
        
        result = runner.invoke(workflow, [
            'run', 'api_workflow'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert result.exit_code == 0
        # Verify API was called (if workflow command uses coordinator-api)
        # This depends on actual implementation

    def test_workflow_execution_id_generation(self, runner, mock_config):
        """Test that workflow execution generates unique IDs"""
        result1 = runner.invoke(workflow, [
            'run', 'test_workflow'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        time.sleep(0.1)  # Small delay to ensure different timestamp
        
        result2 = runner.invoke(workflow, [
            'run', 'test_workflow'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result1.exit_code == 0
        assert result2.exit_code == 0
        
        # Extract execution IDs from output
        import re
        id_pattern = r'wf_exec_\d+'
        ids1 = re.findall(id_pattern, result1.output)
        ids2 = re.findall(id_pattern, result2.output)
        
        if ids1 and ids2:
            assert ids1[0] != ids2[0], "Execution IDs should be unique"

    def test_workflow_nonexistent_status(self, runner, mock_config):
        """Test getting status of non-existent workflow"""
        result = runner.invoke(workflow, [
            'status', 'nonexistent_workflow_xyz'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result.exit_code == 0
        # Should return status even for non-existent workflows
        assert 'nonexistent_workflow_xyz' in result.output

    def test_workflow_stop_nonexistent(self, runner, mock_config):
        """Test stopping non-existent workflow"""
        result = runner.invoke(workflow, [
            'stop', 'nonexistent_workflow_xyz'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result.exit_code == 0
        # Should attempt to stop even if not running
        assert 'nonexistent_workflow_xyz' in result.output

    def test_workflow_with_special_characters(self, runner, mock_config):
        """Test workflow names with special characters"""
        special_names = [
            'workflow-with-dashes',
            'workflow_with_underscores',
            'workflow.with.dots',
            'WorkflowWithCamelCase'
        ]
        
        for name in special_names:
            result = runner.invoke(workflow, [
                'run', name
            ], obj={'config': mock_config, 'output_format': 'table'})
            
            assert result.exit_code == 0
            assert name in result.output

    def test_workflow_list_filters(self, runner, mock_config):
        """Test workflow listing with potential filters"""
        result = runner.invoke(workflow, [
            'list'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert result.exit_code == 0
        data = json.loads(result.output)
        
        # Verify expected workflow types are present
        if isinstance(data, list):
            workflow_names = [w['name'] for w in data]
            # Check for known workflow types from implementation
            expected_types = ['gpu-marketplace', 'ai-job-processing', 'mining-optimization']
            for expected in expected_types:
                if expected in workflow_names:
                    assert True  # Found expected workflow
                    break

    def test_workflow_status_output_format(self, runner, mock_config):
        """Test workflow status in different output formats"""
        # Table format
        result_table = runner.invoke(workflow, [
            'status', 'test_workflow'
        ], obj={'config': mock_config, 'output_format': 'table'})
        
        assert result_table.exit_code == 0
        
        # JSON format
        result_json = runner.invoke(workflow, [
            'status', 'test_workflow'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert result_json.exit_code == 0
        # Should be parseable as JSON or contain status info

    def test_workflow_run_with_coordinator_api(self, runner, mock_config, coordinator_available):
        """Test workflow execution with actual coordinator-api call"""
        result = runner.invoke(workflow, [
            'run', 'test_integration_workflow',
            '--async'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert result.exit_code == 0
        data = json.loads(result.output)
        assert 'workflow_id' in data or 'execution_id' in data
        assert data.get('status') in ['started', 'running', 'pending']

    def test_workflow_list_with_coordinator_api(self, runner, mock_config, coordinator_available):
        """Test listing workflows from coordinator-api"""
        result = runner.invoke(workflow, [
            'list'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert result.exit_code == 0
        data = json.loads(result.output)
        assert 'workflows' in data or isinstance(data, list)
        
        # Validate workflow structure
        if isinstance(data, list):
            for workflow in data:
                assert 'name' in workflow
                assert 'status' in workflow

    def test_workflow_status_with_coordinator_api(self, runner, mock_config, coordinator_available):
        """Test getting workflow status from coordinator-api"""
        # First run a workflow
        run_result = runner.invoke(workflow, [
            'run', 'status_test_workflow'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert run_result.exit_code == 0
        run_data = json.loads(run_result.output)
        workflow_id = run_data.get('workflow_id') or run_data.get('execution_id')
        
        if workflow_id:
            # Get status
            status_result = runner.invoke(workflow, [
                'status', workflow_id
            ], obj={'config': mock_config, 'output_format': 'json'})
            
            assert status_result.exit_code == 0
            status_data = json.loads(status_result.output)
            assert 'status' in status_data
            assert workflow_id in str(status_data)

    def test_workflow_stop_with_coordinator_api(self, runner, mock_config, coordinator_available):
        """Test stopping workflow via coordinator-api"""
        # Run a workflow
        run_result = runner.invoke(workflow, [
            'run', 'stop_test_workflow'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert run_result.exit_code == 0
        run_data = json.loads(run_result.output)
        workflow_id = run_data.get('workflow_id') or run_data.get('execution_id')
        
        if workflow_id:
            # Stop the workflow
            stop_result = runner.invoke(workflow, [
                'stop', workflow_id
            ], obj={'config': mock_config, 'output_format': 'json'})
            
            assert stop_result.exit_code == 0
            stop_data = json.loads(stop_result.output)
            assert stop_data.get('status') in ['stopped', 'stopping', 'cancelled']

    def test_workflow_run_with_parameters(self, runner, mock_config, coordinator_available):
        """Test workflow execution with custom parameters"""
        result = runner.invoke(workflow, [
            'run', 'param_test_workflow',
            '--param', 'gpu_count=4',
            '--param', 'timeout=300'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert result.exit_code == 0
        data = json.loads(result.output)
        assert 'workflow_id' in data or 'execution_id' in data

    def test_workflow_execution_tracking(self, runner, mock_config, coordinator_available):
        """Test tracking workflow execution over time"""
        # Start workflow
        run_result = runner.invoke(workflow, [
            'run', 'tracking_test_workflow'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        assert run_result.exit_code == 0
        run_data = json.loads(run_result.output)
        workflow_id = run_data.get('workflow_id') or run_data.get('execution_id')
        
        if workflow_id:
            # Check status immediately
            status1 = runner.invoke(workflow, [
                'status', workflow_id
            ], obj={'config': mock_config, 'output_format': 'json'})
            
            assert status1.exit_code == 0
            
            # Wait and check status again
            time.sleep(1)
            
            status2 = runner.invoke(workflow, [
                'status', workflow_id
            ], obj={'config': mock_config, 'output_format': 'json'})
            
            assert status2.exit_code == 0
            status2_data = json.loads(status2.output)
            assert 'status' in status2_data

    def test_workflow_api_error_handling(self, runner, mock_config):
        """Test workflow command handles coordinator-api errors gracefully"""
        # Use invalid coordinator URL to trigger error
        mock_config.coordinator_url = "http://invalid:9999"
        
        result = runner.invoke(workflow, [
            'run', 'error_test_workflow'
        ], obj={'config': mock_config, 'output_format': 'json'})
        
        # Should either fail gracefully or skip with appropriate message
        # The exact behavior depends on implementation
        assert result.exit_code != 0 or 'error' in result.output.lower() or 'unavailable' in result.output.lower()