import gradio as gr
from datetime import datetime, timedelta

def generate_release_notes(github_url, github_token, gemini_api_key, start_date, end_date):
    # This is a placeholder implementation. In a real scenario, you would use these
    # parameters to fetch data from GitHub and generate release notes using Gemini AI.
    try:
        start = datetime.strptime(start_date, "%Y-%m-%d")
        end = datetime.strptime(end_date, "%Y-%m-%d")
        days = (end - start).days
        
        notes = f"Release Notes for {github_url}\n"
        notes += f"Period: From {start_date} to {end_date} ({days} days)\n\n"
        notes += "1. New Features:\n   - Feature A added\n   - Feature B implemented\n\n"
        notes += "2. Bug Fixes:\n   - Fixed issue with login\n   - Resolved performance problem in module X\n\n"
        notes += "3. Improvements:\n   - Enhanced user interface\n   - Optimized database queries\n\n"
        notes += "Note: This is a simulated output. Actual implementation would use GitHub API and Gemini AI."
        
        return notes
    except ValueError:
        return "Error: Invalid date format. Please use YYYY-MM-DD."

# Set default dates
default_end_date = datetime.now()
default_start_date = default_end_date - timedelta(days=7)  # One week ago

# Create Gradio interface
iface = gr.Interface(
    fn=generate_release_notes,
    inputs=[
        gr.Textbox(label="GitHub Repository URL", placeholder="https://github.com/username/repo.git"),
        gr.Textbox(label="GitHub Personal Access Token", type="password"),
        gr.Textbox(label="Gemini API Key", type="password"),
        gr.Textbox(
            label="Start Date",
            placeholder="YYYY-MM-DD",
            value=default_start_date.strftime("%Y-%m-%d"),
        ),
        gr.Textbox(
            label="End Date",
            placeholder="YYYY-MM-DD",
            value=default_end_date.strftime("%Y-%m-%d"),
        )
    ],
    outputs=gr.Textbox(label="Generated Release Notes"),
    title="Automated Release Notes Generator",
    description="Generate release notes based on GitHub commits using Gemini AI. Enter start and end dates (YYYY-MM-DD) to define the time range for commits.",
    allow_flagging="never",
    theme="default",
    analytics_enabled=False,
)

# Launch the app
iface.launch()