app.py

import gradio as gr
import json
import task_manager

def call_mcp_tool(tool_name, arguments_json):
    """Call MCP tools via web interface"""
    try:
        args = json.loads(arguments_json) if arguments_json else {}
        
        if tool_name == "create_task":
            result = task_manager.create_task(
                title=args.get("title", ""),
                description=args.get("description", ""),
                priority=args.get("priority", "medium"),
                tags=args.get("tags", ""),
                due_date=args.get("due_date", "")
            )
        elif tool_name == "list_tasks":
            result = task_manager.list_tasks(
                status=args.get("status", "all"),
                priority=args.get("priority", "all"),
                tag=args.get("tag", ""),
                limit=args.get("limit", 10)
            )
        elif tool_name == "get_task":
            result = task_manager.get_task(args.get("task_id", 0))
        elif tool_name == "update_task":
            result = task_manager.update_task(
                task_id=args.get("task_id", 0),
                title=args.get("title", ""),
                description=args.get("description", ""),
                status=args.get("status", ""),
                priority=args.get("priority", ""),
                tags=args.get("tags", ""),
                due_date=args.get("due_date", "")
            )
        elif tool_name == "delete_task":
            result = task_manager.delete_task(args.get("task_id", 0))
        elif tool_name == "search_tasks":
            result = task_manager.search_tasks(
                query=args.get("query", ""),
                limit=args.get("limit", 10)
            )
        elif tool_name == "get_stats":
            result = task_manager.get_stats()
        else:
            return "Unknown tool"
            
        return result
    except Exception as e:
        return f"Error: {str(e)}"

# Create Gradio interface
with gr.Blocks(title="Task Manager MCP Server") as demo:
    gr.Markdown("# Task Manager MCP Server")
    gr.Markdown("Test your MCP server tools through this web interface")
    
    with gr.Row():
        tool_dropdown = gr.Dropdown(
            choices=["create_task", "list_tasks", "get_task", "update_task", "delete_task", "search_tasks", "get_stats"],
            label="Select Tool",
            value="list_tasks"
        )
        
    arguments_input = gr.Textbox(
        label="Arguments (JSON)",
        placeholder='{"title": "My Task", "description": "Task description"}',
        lines=3
    )
    
    submit_btn = gr.Button("Call Tool")
    output = gr.Textbox(label="Result", lines=10)
    
    # Add example buttons for common operations
    with gr.Row():
        gr.Examples(
            examples=[
                ["create_task", '{"title": "Learn MCP", "description": "Study Model Context Protocol", "priority": "high"}'],
                ["list_tasks", '{}'],
                ["get_stats", '{}'],
                ["search_tasks", '{"query": "learn"}']
            ],
            inputs=[tool_dropdown, arguments_input],
            label="Quick Examples"
        )
    
    submit_btn.click(
        call_mcp_tool,
        inputs=[tool_dropdown, arguments_input],
        outputs=output
    )

if __name__ == "__main__":
    demo.launch()