import gradio as gr
import cv2
import numpy as np
import time
from datetime import datetime
from collections import deque, defaultdict
import matplotlib.pyplot as plt
from services.video_service import VideoService
from services.detection_service import DetectionService
from services.thermal_service import ThermalService
from services.shadow_detection import ShadowDetection
from services.salesforce_dispatcher import SalesforceDispatcher
import os

# Initialize services
video_service = VideoService()
detection_service = DetectionService(model_name="facebook/detr-resnet-50")
thermal_service = ThermalService()
shadow_detection = ShadowDetection()
salesforce_dispatcher = SalesforceDispatcher()

# Paths to video files
VIDEO_PATHS = {
    "Day Feed": "data/drone_day.mp4",
    "Night Feed": "data/night_intrusion.mp4",
    "Thermal Feed": "data/thermal_hotspot.mp4",
    "Shadow/Dust Feed": "data/shadow_dust_issue.mp4",
}

# State for live feed
class LiveFeedState:
    def __init__(self):
        self.anomaly_history = deque(maxlen=100)  # Last 100 frames for trend
        self.anomaly_types = defaultdict(int)     # Count of each anomaly type
        self.captured_events = deque(maxlen=5)    # Last 5 events with frames
        self.total_detected = 0                   # Total anomalies detected
        self.logs = deque(maxlen=10)              # Last 10 log entries
        self.frame_count = 0                      # Frame counter

def live_feed_generator(video_type, confidence_threshold=0.9):
    """Generator for live feed with real-time detection."""
    state = LiveFeedState()
    video_path = VIDEO_PATHS.get(video_type)
    
    if not video_path or not os.path.exists(video_path):
        yield gr.update(value="Video file not found."), None, None, None, None, None, None
        return

    cap = cv2.VideoCapture(video_path)
    fps = cap.get(cv2.CAP_PROP_FPS)
    frame_interval = 1 / fps  # Time between frames for real-time simulation

    while cap.isOpened():
        ret, frame = cap.read()
        if not ret:
            cap.set(cv2.CAP_PROP_POS_FRAMES, 0)  # Loop the video
            continue

        state.frame_count += 1
        frame_pil = video_service.frame_to_pil(frame)

        # Perform detection based on video type
        if video_type == "Thermal Feed":
            detections = thermal_service.detect_hotspots(frame_pil, detection_service, confidence_threshold)
            alert_type = "Overheating"
        elif video_type == "Shadow/Dust Feed":
            detections = shadow_detection.detect_shadow_dust(frame_pil, detection_service, confidence_threshold)
            alert_type = "Shadow/Dust"
        else:
            detections = detection_service.detect_objects(frame_pil, confidence_threshold)
            alert_type = "General"

        # Draw detections on frame
        annotated_frame = video_service.draw_detections(frame, detections)
        annotated_frame_rgb = cv2.cvtColor(annotated_frame, cv2.COLOR_BGR2RGB)

        # Update state
        num_anomalies = len(detections)
        state.anomaly_history.append(num_anomalies)
        state.total_detected += num_anomalies

        # Update anomaly types
        for detection in detections:
            label = detection["label"]
            state.anomaly_types[label] += 1

        # Log detection
        timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        log_entry = f"{timestamp} - Frame {state.frame_count} - Anomalies: {num_anomalies}"
        state.logs.append(log_entry)

        # Capture events (frames with anomalies)
        if num_anomalies > 0:
            state.captured_events.append(annotated_frame_rgb)

        # Generate Salesforce case and notifications
        if num_anomalies > 0:
            case_id = salesforce_dispatcher.create_case(
                subject=f"{alert_type} Detected in {video_type} (Frame {state.frame_count})",
                description=str(detections)
            )
            salesforce_dispatcher.send_email(
                to="admin@solarplant.com",
                subject=f"Alert: {alert_type} in {video_type}",
                body=f"Case ID: {case_id}\nDetails: {detections}\nFrame: {state.frame_count}"
            )
            salesforce_dispatcher.notify_security_team(
                message=f"Alert: {alert_type} detected in {video_type}. Case ID: {case_id}, Frame: {state.frame_count}"
            )

        # Generate live metrics
        metrics = []
        for detection in detections:
            box = detection["box"]
            coords = f"[{box['xmin']},{box['ymin']},{box['xmax']},{box['ymax']}]"
            metrics.append(coords)
        metrics_str = f"Coordinates: {metrics}\nTotal Detected: {state.total_detected}"

        # Generate detection trend plot with dark theme
        plt.style.use('dark_background')
        plt.figure(figsize=(4, 2))
        plt.plot(list(state.anomaly_history), marker='o', color='yellow')
        plt.title("Anomalies Over Time", color='white')
        plt.xlabel("Frame", color='white')
        plt.ylabel("Count", color='white')
        plt.grid(True, color='gray')
        plt.tick_params(colors='white')
        trend_plot = plt.gcf()
        plt.close()

        # Generate anomaly types summary
        anomaly_types_str = "\n".join([f"{k}: {v}" for k, v in state.anomaly_types.items()])

        # Update timestamp
        timestamp_str = datetime.now().strftime("%Y-%m-%d %H:%M:%S")

        # Yield updated UI components
        yield (
            gr.update(value=annotated_frame_rgb),           # Live Video Feed
            gr.update(value=metrics_str),                   # Live Metrics
            gr.update(value="\n".join(state.logs)),        # Live Logs
            gr.update(value=trend_plot),                    # Detection Trend
            gr.update(value=anomaly_types_str),            # Anomaly Types
            gr.update(value=list(state.captured_events)),   # Captured Events
            gr.update(value=timestamp_str)                 # Timestamp
        )

        # Simulate real-time by sleeping between frames
        time.sleep(frame_interval)

    cap.release()

# Custom CSS for dark theme and styling
custom_css = """
body, .gradio-container {
    background-color: #1a1a1a !important;
    color: white !important;
    font-family: Arial, sans-serif !important;
}
h1, h2, h3, label {
    color: white !important;
    font-weight: bold !important;
}
.gradio-row, .gradio-column {
    background-color: #2b2b2b !important;
    border-radius: 8px !important;
    padding: 10px !important;
    margin: 5px !important;
}
#live-feed {
    border: 2px solid #444 !important;
    border-radius: 8px !important;
}
#live-metrics, #live-logs, #anomaly-types {
    background-color: #333 !important;
    color: white !important;
    border: 1px solid #555 !important;
    border-radius: 8px !important;
    padding: 10px !important;
    height: 100px !important;
    overflow-y: auto !important;
}
#detection-trend, #captured-events {
    background-color: #333 !important;
    border: 1px solid #555 !important;
    border-radius: 8px !important;
    padding: 10px !important;
}
#status-indicator {
    color: #00ff00 !important;
    font-size: 14px !important;
}
#timestamp {
    font-size: 16px !important;
    color: #cccccc !important;
}
"""

# Gradio Interface
with gr.Blocks(css=custom_css) as demo:
    gr.Markdown("# Fault Detection")
    timestamp = gr.Textbox(label="", value=datetime.now().strftime("%Y-%m-%d %H:%M:%S"), elem_id="timestamp")
    
    with gr.Row():
        # Left Panel: Live Feed and Controls
        with gr.Column(scale=7):
            with gr.Row():
                video_type = gr.Dropdown(
                    choices=["Day Feed", "Night Feed", "Thermal Feed", "Shadow/Dust Feed"],
                    label="Select Drone Feed",
                    value="Thermal Feed"
                )
                confidence_threshold = gr.Slider(0.5, 1.0, value=0.9, label="Confidence Threshold")
                start_button = gr.Button("Start Live Feed")
            live_feed = gr.Image(label="Live Video Feed", streaming=True, elem_id="live-feed")
            status_indicator = gr.HTML(
                '<p id="status-indicator">Status: <span style="color: green;">Running</span> •</p>',
                label=""
            )
        
        # Right Panel: Analytics
        with gr.Column(scale=3):
            live_metrics = gr.Textbox(label="Live Metrics", elem_id="live-metrics")
            live_logs = gr.Textbox(label="Live Logs", elem_id="live-logs")
            detection_trend = gr.Plot(label="Detection Trend", elem_id="detection-trend")
            anomaly_types = gr.Textbox(label="Anomaly Types", elem_id="anomaly-types")
            captured_events = gr.Gallery(label="Captured Events (Last 5)", elem_id="captured-events")

    start_button.click(
        fn=live_feed_generator,
        inputs=[video_type, confidence_threshold],
        outputs=[live_feed, live_metrics, live_logs, detection_trend, anomaly_types, captured_events, timestamp]
    )

demo.launch()