import gradio as gr
import os
from src.processing.gemini_processor import GeminiProcessor
from src.analysis.coverage_generator import CoverageGenerator
from src.analysis.creative_analyzer import CreativeAnalyzer
from pathlib import Path
import logging

class ConsoleOutput:
    def __init__(self):
        self.messages = []
        
    def write(self, message):
        self.messages.append(str(message))
        return "\n".join(self.messages)
        
    def get_output(self):
        return "\n".join(self.messages)

class GradioHandler(logging.Handler):
    def emit(self, record):
        msg = self.format(record)
        self.console.write(msg)

def setup_logging(console_output):
    logging.basicConfig(level=logging.DEBUG)
    logger = logging.getLogger()
    logger.handlers = []
    handler = GradioHandler()
    handler.console = console_output
    logger.addHandler(handler)
    return logger

def process_screenplay(pdf_file, progress=gr.Progress()):
    if pdf_file is None:
        raise gr.Error("Please upload a PDF file")
    
    console = ConsoleOutput()
    logger = setup_logging(console)
    
    try:
        processor = GeminiProcessor()
        progress(0.5, desc="Processing screenplay...")
        cleaned_path = Path("cleaned_screenplay_long.txt")
        success = processor.process_screenplay(pdf_file.name, str(cleaned_path))
        
        if not success:
            raise gr.Error("Failed to process screenplay")
            
        with open(cleaned_path, 'r') as f:
            cleaned_text = f.read()
            
        progress(1.0, desc="Complete!")
        return [cleaned_text, gr.update(interactive=True, variant="primary"), 
                gr.update(interactive=True, variant="primary"), console.get_output()]
    
    except Exception as e:
        error_msg = f"Error: {str(e)}"
        console.write(error_msg)
        raise gr.Error(error_msg)

def generate_coverage(progress=gr.Progress()):
    console = ConsoleOutput()
    logger = setup_logging(console)
    
    try:
        coverage_gen = CoverageGenerator()
        progress(0.5, desc="Generating coverage...")
        cleaned_path = Path("cleaned_screenplay_long.txt")
        success = coverage_gen.generate_coverage(cleaned_path)
        
        if not success:
            raise gr.Error("Failed to generate coverage")
            
        with open(Path("coverage.txt"), 'r') as f:
            coverage = f.read()
            
        progress(1.0, desc="Complete!")
        return [coverage, console.get_output()]
        
    except Exception as e:
        error_msg = f"Error: {str(e)}"
        console.write(error_msg)
        raise gr.Error(error_msg)

def analyze_screenplay(progress=gr.Progress()):
    console = ConsoleOutput()
    logger = setup_logging(console)
    
    try:
        analyzer = CreativeAnalyzer()
        progress(0.5, desc="Performing creative analysis...")
        cleaned_path = Path("cleaned_screenplay_long.txt")
        success = analyzer.analyze_screenplay(cleaned_path)
        
        if not success:
            raise gr.Error("Failed to generate creative analysis")
            
        with open(Path("creative_analysis.txt"), 'r') as f:
            analysis = f.read()
            
        progress(1.0, desc="Complete!")
        return [analysis, console.get_output()]
        
    except Exception as e:
        error_msg = f"Error: {str(e)}"
        console.write(error_msg)
        raise gr.Error(error_msg)

with gr.Blocks(title="Screenplay Coverage Generator") as demo:
    gr.Markdown("# Screenplay Coverage Generator")
    
    with gr.Row():
        file_input = gr.File(label="Upload Screenplay PDF", file_types=[".pdf"])
    
    with gr.Row():
        process_btn = gr.Button("Process Screenplay", variant="primary")
        coverage_btn = gr.Button("Generate Coverage", interactive=False)
        analysis_btn = gr.Button("Creative Analysis", interactive=False)
    
    with gr.Row():
        console = gr.Textbox(label="Console Output", lines=10, max_lines=30, autoscroll=True, show_copy_button=True)
    
    with gr.Tabs():
        with gr.TabItem("Cleaned Screenplay"):
            cleaned_output = gr.Textbox(label="Cleaned Screenplay", lines=10, show_copy_button=True)
        with gr.TabItem("Coverage"):
            coverage_output = gr.Textbox(label="Coverage Document", lines=10, show_copy_button=True)
        with gr.TabItem("Creative Analysis"):
            analysis_output = gr.Textbox(label="Creative Analysis", lines=10, show_copy_button=True)
    
    process_btn.click(
        fn=process_screenplay,
        inputs=[file_input],
        outputs=[cleaned_output, coverage_btn, analysis_btn, console]
    )
    
    coverage_btn.click(
        fn=generate_coverage,
        outputs=[coverage_output, console]
    )
    
    analysis_btn.click(
        fn=analyze_screenplay,
        outputs=[analysis_output, console]
    )

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