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import gradio as gr
import subprocess
import random
import json
import os
import tempfile
import time
from pathlib import Path
from datetime import datetime
import logging
from typing import Dict, List, Any

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(levelname)s - %(message)s'
)
logger = logging.getLogger(__name__)

# Base Component Registry
components_registry = {
    "Button": {
        "properties": {"label": "Click Me", "onclick": ""},
        "description": "A clickable button",
        "code_snippet": 'gr.Button(value="{label}", variant="primary")',
    },
    "Text Input": {
        "properties": {"value": "", "placeholder": "Enter text"},
        "description": "A field for entering text",
        "code_snippet": 'gr.Textbox(label="{placeholder}")',
    },
    "Image": {
        "properties": {"src": "#", "alt": "Image"},
        "description": "Displays an image",
        "code_snippet": 'gr.Image(label="{alt}")',
    },
    "Dropdown": {
        "properties": {"choices": ["Option 1", "Option 2"], "value": ""},
        "description": "A dropdown menu for selecting options",
        "code_snippet": 'gr.Dropdown(choices={choices}, label="Dropdown")',
    },
}

# Define Component class first
class Component:
    def __init__(self, type, properties=None, id=None):
        self.id = id or random.randint(1000, 9999)
        self.type = type
        self.properties = properties or components_registry[type]["properties"].copy()

    def to_dict(self):
        return {
            "id": self.id,
            "type": self.type,
            "properties": self.properties,
        }

    def render(self):
        if self.type == "Dropdown":
            self.properties["choices"] = (
                str(self.properties["choices"])
                .replace("[", "")
                .replace("]", "")
                .replace("'", "")
            )
        return components_registry[self.type]["code_snippet"].format(**self.properties)

# Define AppCreationProcess class before EnhancedAppCreationProcess
class AppCreationProcess:
    def __init__(self):
        self.current_step = 1
        self.app_name = ""
        self.components = []
        self.theme = "Default"
        self.custom_css = ""

    def get_current_step_info(self):
        steps = {
            1: "App Initialization",
            2: "Component Addition",
            3: "Property Configuration",
            4: "Code Generation",
            5: "Deployment"
        }
        return f"Step {self.current_step}: {steps[self.current_step]}"

    def add_component(self, component_type):
        new_component = Component(component_type)
        self.components.append(new_component.to_dict())
        return self.update_app_canvas()

    def update_app_canvas(self):
        components_html = "".join([
            f"<div>Component ID: {component['id']}, Type: {component['type']}, "
            f"Properties: {component['properties']}</div>"
            for component in self.components
        ])
        return components_html

    def generate_python_code(self):
        code = f"""import gradio as gr\n\nwith gr.Blocks() as {self.app_name}:\n"""
        for component in self.components:
            code += "    " + Component(**component).render() + "\n"
        code += f"\n{self.app_name}.launch()\n"
        return code

# Now define EnhancedAppBuilder
class EnhancedAppBuilder:
    def __init__(self):
        self.TEMPLATES = {
            "Basic": "basic_app.json",
            "Dashboard": "dashboard_template.json",
            "Data Analysis": "data_analysis_template.json",
            "ML Interface": "ml_interface_template.json"
        }
        
        self.THEMES = {
            "Default": {},
            "Dark": {"primary_hue": "slate", "secondary_hue": "slate"},
            "Light": {"primary_hue": "blue", "secondary_hue": "blue"},
            "Professional": {"primary_hue": "indigo", "secondary_hue": "indigo"}
        }
        
        self.ADVANCED_COMPONENTS = {
            "Plot": {
                "properties": {
                    "type": ["line", "bar", "scatter", "histogram"],
                    "data_source": "",
                    "x_axis": "",
                    "y_axis": ""
                },
                "code_snippet": 'gr.Plot(value=plot_{id}, label="{label}")'
            },
            "FileUploader": {
                "properties": {
                    "file_types": [".csv", ".txt", ".pdf", ".png", ".jpg"],
                    "multiple": False
                },
                "code_snippet": 'gr.File(file_types={file_types}, label="{label}")'
            }
        }

    async def validate_component(self, component: Dict) -> tuple:
        try:
            required_fields = ["type", "properties", "id"]
            if not all(field in component for field in required_fields):
                return False, "Missing required fields"
            
            if component["type"] not in {**components_registry, **self.ADVANCED_COMPONENTS}:
                return False, f"Invalid component type: {component['type']}"
            
            return True, "Component validation successful"
        except Exception as e:
            return False, f"Validation error: {str(e)}"

# Then define EnhancedAppCreationProcess
class EnhancedAppCreationProcess(AppCreationProcess):
    def __init__(self):
        super().__init__()
        self.builder = EnhancedAppBuilder()
        self.history = []
        self.event_handlers = {}
        self.dependencies = []

    def save_snapshot(self):
        snapshot = {
            'timestamp': datetime.now().isoformat(),
            'app_name': self.app_name,
            'components': self.components.copy(),
            'theme': self.theme,
            'custom_css': self.custom_css
        }
        self.history.append(snapshot)

    async def generate_enhanced_code(self):
        try:
            code = """import gradio as gr
import pandas as pd
import numpy as np
from pathlib import Path
import logging

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
"""
            theme_config = self.builder.THEMES.get(self.theme, {})
            code += f"\ntheme = gr.themes.Default({', '.join(f'{k}={v!r}' for k, v in theme_config.items())})\n"
            
            if self.custom_css:
                code += f"\ncustom_css = '''{self.custom_css}'''\n"
            
            code += f"\nwith gr.Blocks(theme=theme{',' if self.custom_css else ''} css=custom_css) as {self.app_name}:\n"
            
            for component in self.components:
                code += f"    {Component(**component).render()}\n"
            
            code += f"\n{self.app_name}.launch(share=True, debug=True)\n"
            
            return code, []
            
        except Exception as e:
            logger.error(f"Code generation error: {str(e)}")
            return str(e), []

# Create the interface
def create_enhanced_interface():
    app_process = EnhancedAppCreationProcess()
    
    with gr.Blocks(theme=gr.themes.Default()) as iface:
        gr.Markdown("# 🚀 Enhanced App Builder Pro")
        
        with gr.Row():
            with gr.Column(scale=2):
                current_step = gr.Markdown(value=app_process.get_current_step_info())
            with gr.Column(scale=1):
                theme_dropdown = gr.Dropdown(
                    choices=list(app_process.builder.THEMES.keys()),
                    value="Default",
                    label="Theme"
                )
        
        with gr.Tabs():
            # App Configuration Tab
            with gr.TabItem("📱 App Configuration"):
                app_name_input = gr.Textbox(label="App Name")
                template_dropdown = gr.Dropdown(
                    choices=list(app_process.builder.TEMPLATES.keys()),
                    label="Template"
                )
                init_app_button = gr.Button("Initialize App", variant="primary")
                init_status = gr.Markdown()

            # Component Builder Tab
            with gr.TabItem("🔧 Component Builder"):
                with gr.Row():
                    with gr.Column():
                        component_type = gr.Dropdown(
                            choices=list({**components_registry, **app_process.builder.ADVANCED_COMPONENTS}.keys()),
                            label="Component Type"
                        )
                        add_component_button = gr.Button("Add Component")
                    with gr.Column():
                        components_display = gr.HTML()

            # Code Generator Tab
            with gr.TabItem("💻 Code Generator"):
                generate_code_button = gr.Button("Generate Code")
                generated_code = gr.Code(language="python")
                lint_results = gr.Markdown()

        # Event handlers
        def update_theme(theme_name):
            app_process.theme = theme_name
            return f"Theme updated to {theme_name}"

        def init_app(name, template):
            try:
                app_process.app_name = name
                app_process.save_snapshot()
                return f"✅ App '{name}' initialized successfully with {template} template!"
            except Exception as e:
                return f"❌ Error: {str(e)}"

        def add_component(comp_type):
            try:
                result = app_process.add_component(comp_type)
                return result, "✅ Component added successfully"
            except Exception as e:
                return None, f"❌ Error: {str(e)}"

        async def generate_code():
            try:
                code, lint_results = await app_process.generate_enhanced_code()
                return code, "Code generated successfully"
            except Exception as e:
                return str(e), f"❌ Error in code generation: {str(e)}"

        # Connect event handlers
        theme_dropdown.change(update_theme, inputs=[theme_dropdown], outputs=[init_status])
        init_app_button.click(init_app, inputs=[app_name_input, template_dropdown], outputs=[init_status])
        add_component_button.click(add_component, inputs=[component_type], outputs=[components_display, init_status])
        generate_code_button.click(generate_code, outputs=[generated_code, lint_results])

    return iface

# Launch the application
if __name__ == "__main__":
    iface = create_enhanced_interface()
    iface.launch(server_port=7860, share=True, debug=True)