import datetime
from typing import Dict, List, Any, Union, Optional
import random
import gradio as gr
import json
import matplotlib.pyplot as plt
import numpy as np
from collections import defaultdict

# Import utilities
from utils.storage import load_data, save_data, safe_get
from utils.state import generate_id, get_timestamp, record_activity
from utils.ai_models import generate_daily_plan, generate_motivational_quote
from utils.ui_components import create_progress_ring, create_deadline_item, create_card, create_stat_card

# Import new modules
from utils.config import FILE_PATHS
from utils.logging import setup_logger
from utils.error_handling import handle_exceptions

# Initialize logger
logger = setup_logger(__name__)

# SMART Goals criteria
SMART_CRITERIA = {
    "Specific": "Is your goal clearly defined and specific?",
    "Measurable": "Can you measure progress and know when it's achieved?",
    "Achievable": "Is this goal realistic and attainable?",
    "Relevant": "Does this goal align with your values and priorities?",
    "Time-bound": "Does your goal have a clear deadline?"
}

# Achievement badges
ACHIEVEMENT_BADGES = {
    "first_goal": {"name": "Goal Setter", "icon": "🎯", "description": "Created your first goal"},
    "goal_achiever": {"name": "Achiever", "icon": "🏆", "description": "Completed your first goal"},
    "streak_master": {"name": "Streak Master", "icon": "🔥", "description": "Maintained a 7-day habit streak"},
    "planner": {"name": "Master Planner", "icon": "📋", "description": "Created 5 weekly plans"},
    "reflector": {"name": "Reflective Mind", "icon": "🤔", "description": "Completed 10 weekly reflections"},
    "milestone_master": {"name": "Milestone Master", "icon": "🚀", "description": "Achieved 5 milestones"},
    "habit_builder": {"name": "Habit Builder", "icon": "⚡", "description": "Created 10 habits"},
    "analytics_pro": {"name": "Analytics Pro", "icon": "📊", "description": "Viewed analytics 20 times"}
}

@handle_exceptions
def initialize_goals_data(state: Dict[str, Any]) -> None:
    """Initialize goals-related data structures"""
    if "goals" not in state:
        state["goals"] = []
    if "habits" not in state:
        state["habits"] = []
    if "milestones" not in state:
        state["milestones"] = []
    if "weekly_plans" not in state:
        state["weekly_plans"] = []
    if "monthly_plans" not in state:
        state["monthly_plans"] = []
    if "reflections" not in state:
        state["reflections"] = []
    if "achievements" not in state:
        state["achievements"] = []
    if "goal_analytics" not in state:
        state["goal_analytics"] = {"views": 0, "goals_created": 0, "goals_completed": 0}

@handle_exceptions
def create_smart_goal_form() -> tuple:
    """Create SMART goal creation form"""
    with gr.Group() as smart_form:
        gr.Markdown("### 🎯 Create SMART Goal")
        
        goal_title = gr.Textbox(label="Goal Title", placeholder="Enter a clear, specific goal title")
        goal_description = gr.Textbox(label="Description", lines=3, placeholder="Describe your goal in detail")
        
        # SMART criteria checklist
        gr.Markdown("#### SMART Criteria Check")
        smart_checks = {}
        for criterion, question in SMART_CRITERIA.items():
            smart_checks[criterion] = gr.Checkbox(label=f"{criterion}: {question}")
        
        # Goal details
        with gr.Row():
            goal_category = gr.Dropdown(
                choices=["Personal", "Professional", "Health", "Learning", "Financial", "Relationships", "Other"],
                label="Category",
                value="Personal"
            )
            goal_priority = gr.Dropdown(
                choices=["High", "Medium", "Low"],
                label="Priority",
                value="Medium"
            )
        
        with gr.Row():
            start_date = gr.Textbox(
                label="Start Date",
                value=datetime.datetime.now().strftime("%Y-%m-%d")
            )
            target_date = gr.Textbox(
                label="Target Date",
                placeholder="YYYY-MM-DD"
            )
        
        # Milestones
        gr.Markdown("#### Milestones")
        milestone_input = gr.Textbox(
            label="Add Milestone",
            placeholder="Enter milestone description"
        )
        milestones_list = gr.Textbox(
            label="Milestones",
            lines=3,
            placeholder="Milestones will appear here...",
            interactive=False
        )
        add_milestone_btn = gr.Button("Add Milestone", size="sm")
        
        # Success metrics
        success_metrics = gr.Textbox(
            label="Success Metrics",
            lines=2,
            placeholder="How will you measure success?"
        )
        
        create_goal_btn = gr.Button("Create SMART Goal", variant="primary")
    
    return (smart_form, goal_title, goal_description, smart_checks, goal_category, 
            goal_priority, start_date, target_date, milestone_input, milestones_list, 
            add_milestone_btn, success_metrics, create_goal_btn)

@handle_exceptions
def create_habit_tracker() -> tuple:
    """Create habit tracking interface"""
    with gr.Group() as habit_tracker:
        gr.Markdown("### 🔄 Habit Tracker")
        
        # Add new habit
        with gr.Row():
            habit_name = gr.Textbox(label="Habit Name", placeholder="e.g., Drink 8 glasses of water")
            habit_frequency = gr.Dropdown(
                choices=["Daily", "Weekly", "Monthly"],
                label="Frequency",
                value="Daily"
            )
            habit_target = gr.Number(label="Target (days)", value=21, minimum=1)
        
        add_habit_btn = gr.Button("Add Habit", variant="primary")
        
        # Habits list with streak tracking
        habits_display = gr.Dataframe(
            headers=["Habit", "Current Streak", "Best Streak", "Target", "Progress %", "Actions"],
            datatype=["str", "number", "number", "number", "number", "str"],
            label="Your Habits"
        )
        
        # Habit calendar view
        gr.Markdown("#### Habit Calendar")
        habit_calendar = gr.HTML("<div id='habit-calendar'>Calendar will load here</div>")
        
        # Quick habit check-in
        gr.Markdown("#### Quick Check-in")
        with gr.Row():
            checkin_habit = gr.Dropdown(label="Select Habit", choices=[])
            checkin_btn = gr.Button("Mark Complete", variant="secondary")
    
    return (habit_tracker, habit_name, habit_frequency, habit_target, add_habit_btn,
            habits_display, habit_calendar, checkin_habit, checkin_btn)

@handle_exceptions
def create_planning_tools() -> tuple:
    """Create planning and scheduling tools"""
    with gr.Group() as planning_tools:
        gr.Markdown("### 📅 Planning & Time Blocking")
        
        with gr.Tabs():
            # Daily Planning
            with gr.TabItem("Daily Planning"):
                plan_date = gr.Textbox(
                    label="Date",
                    value=datetime.datetime.now().strftime("%Y-%m-%d")
                )
                
                # AI-generated suggestions
                gr.Markdown("#### 🤖 AI Suggestions")
                ai_suggestions = gr.Markdown("*Click 'Generate Suggestions' for AI-powered daily plan*")
                generate_suggestions_btn = gr.Button("Generate Suggestions")
                
                # Time blocking
                gr.Markdown("#### ⏰ Time Blocks")
                with gr.Row():
                    block_time = gr.Textbox(label="Time", placeholder="09:00-10:00")
                    block_activity = gr.Textbox(label="Activity", placeholder="Deep work on project X")
                    block_priority = gr.Dropdown(
                        choices=["High", "Medium", "Low"],
                        label="Priority",
                        value="Medium"
                    )
                add_block_btn = gr.Button("Add Time Block")
                
                time_blocks_display = gr.Dataframe(
                    headers=["Time", "Activity", "Priority", "Status"],
                    datatype=["str", "str", "str", "str"],
                    label="Today's Schedule"
                )
            
            # Weekly Planning
            with gr.TabItem("Weekly Planning"):
                week_start = gr.Textbox(
                    label="Week Starting",
                    value=datetime.datetime.now().strftime("%Y-%m-%d")
                )
                
                weekly_focus = gr.Textbox(
                    label="Weekly Focus Areas",
                    lines=3,
                    placeholder="What are your main priorities this week?"
                )
                
                weekly_goals_checklist = gr.CheckboxGroup(
                    label="Weekly Goals",
                    choices=[]
                )
                
                save_weekly_plan_btn = gr.Button("Save Weekly Plan")
            
            # Monthly Planning
            with gr.TabItem("Monthly Planning"):
                month_year = gr.Textbox(
                    label="Month/Year",
                    value=datetime.datetime.now().strftime("%B %Y")
                )
                
                monthly_theme = gr.Textbox(
                    label="Monthly Theme",
                    placeholder="What's the main theme for this month?"
                )
                
                monthly_objectives = gr.Textbox(
                    label="Key Objectives",
                    lines=5,
                    placeholder="List your main objectives for the month"
                )
                
                save_monthly_plan_btn = gr.Button("Save Monthly Plan")
    
    return (planning_tools, plan_date, ai_suggestions, generate_suggestions_btn,
            block_time, block_activity, block_priority, add_block_btn, time_blocks_display,
            week_start, weekly_focus, weekly_goals_checklist, save_weekly_plan_btn,
            month_year, monthly_theme, monthly_objectives, save_monthly_plan_btn)

@handle_exceptions
def create_reflection_journal() -> tuple:
    """Create reflection and review system"""
    with gr.Group() as reflection_journal:
        gr.Markdown("### 🤔 Reflection Journal")
        
        with gr.Tabs():
            # Weekly Reflection
            with gr.TabItem("Weekly Reflection"):
                reflection_week = gr.Textbox(
                    label="Week of",
                    value=datetime.datetime.now().strftime("%Y-%m-%d")
                )
                
                # Reflection prompts
                gr.Markdown("#### Reflection Prompts")
                
                wins = gr.Textbox(
                    label="🏆 What were your biggest wins this week?",
                    lines=3
                )
                
                challenges = gr.Textbox(
                    label="⚠️ What challenges did you face?",
                    lines=3
                )
                
                lessons = gr.Textbox(
                    label="📚 What did you learn?",
                    lines=3
                )
                
                improvements = gr.Textbox(
                    label="🔄 What would you do differently?",
                    lines=3
                )
                
                next_week_focus = gr.Textbox(
                    label="🎯 What will you focus on next week?",
                    lines=3
                )
                
                gratitude = gr.Textbox(
                    label="🙏 What are you grateful for?",
                    lines=2
                )
                
                save_reflection_btn = gr.Button("Save Reflection", variant="primary")
            
            # Monthly Review
            with gr.TabItem("Monthly Review"):
                review_month = gr.Textbox(
                    label="Month/Year",
                    value=datetime.datetime.now().strftime("%B %Y")
                )
                
                monthly_achievements = gr.Textbox(
                    label="🏆 Major Achievements",
                    lines=4
                )
                
                goals_progress = gr.Textbox(
                    label="📈 Goals Progress Review",
                    lines=4
                )
                
                habits_review = gr.Textbox(
                    label="🔄 Habits Review",
                    lines=3
                )
                
                next_month_goals = gr.Textbox(
                    label="🎯 Next Month's Goals",
                    lines=4
                )
                
                save_monthly_review_btn = gr.Button("Save Monthly Review", variant="primary")
        
        # Past reflections
        gr.Markdown("#### Past Reflections")
        reflections_history = gr.Dataframe(
            headers=["Date", "Type", "Key Insights"],
            datatype=["str", "str", "str"],
            label="Reflection History"
        )
    
    return (reflection_journal, reflection_week, wins, challenges, lessons, improvements,
            next_week_focus, gratitude, save_reflection_btn, review_month, monthly_achievements,
            goals_progress, habits_review, next_month_goals, save_monthly_review_btn,
            reflections_history)

@handle_exceptions
def create_achievement_system() -> tuple:
    """Create achievement badges and gamification"""
    with gr.Group() as achievement_system:
        gr.Markdown("### 🏆 Achievements & Badges")
        
        # Achievement overview
        achievement_stats = gr.HTML("""
        <div class="achievement-stats">
            <div class="stat-item">
                <span class="stat-number">0</span>
                <span class="stat-label">Badges Earned</span>
            </div>
            <div class="stat-item">
                <span class="stat-number">0</span>
                <span class="stat-label">Goals Completed</span>
            </div>
            <div class="stat-item">
                <span class="stat-number">0</span>
                <span class="stat-label">Streak Days</span>
            </div>
        </div>
        """)
        
        # Badges grid
        badges_display = gr.HTML("<div id='badges-grid'>Badges will load here</div>")
        
        # Progress towards next badge
        gr.Markdown("#### Next Badge Progress")
        next_badge_progress = gr.HTML("<div id='next-badge'>Progress will load here</div>")
    
    return achievement_system, achievement_stats, badges_display, next_badge_progress

@handle_exceptions
def create_goal_analytics() -> tuple:
    """Create analytics and insights dashboard"""
    with gr.Group() as analytics_dashboard:
        gr.Markdown("### 📊 Goal Analytics & Insights")
        
        with gr.Tabs():
            # Progress Charts
            with gr.TabItem("Progress Charts"):
                # Goal completion rate
                completion_chart = gr.Plot(label="Goal Completion Rate")
                
                # Habit consistency
                habit_chart = gr.Plot(label="Habit Consistency")
                
                # Category breakdown
                category_chart = gr.Plot(label="Goals by Category")
            
            # Success Patterns
            with gr.TabItem("Success Patterns"):
                success_insights = gr.Markdown("*Analytics will appear here*")
                
                # Best performing categories
                performance_analysis = gr.Dataframe(
                    headers=["Category", "Success Rate", "Avg. Completion Time", "Insights"],
                    datatype=["str", "str", "str", "str"],
                    label="Performance Analysis"
                )
            
            # Time Analysis
            with gr.TabItem("Time Analysis"):
                time_insights = gr.Plot(label="Goal Completion Timeline")
                
                productivity_patterns = gr.Markdown("*Productivity patterns will appear here*")
        
        # AI Insights
        gr.Markdown("#### 🤖 AI-Powered Insights")
        ai_insights = gr.Markdown("*AI insights will be generated based on your data*")
        generate_insights_btn = gr.Button("Generate AI Insights")
    
    return (analytics_dashboard, completion_chart, habit_chart, category_chart,
            success_insights, performance_analysis, time_insights, productivity_patterns,
            ai_insights, generate_insights_btn)

@handle_exceptions
def create_goals_page(state: Dict[str, Any]) -> None:
    """
    Create the comprehensive goals and planning page
    
    Args:
        state: Application state
    """
    logger.info("Creating comprehensive goals page")
    
    # Initialize data
    initialize_goals_data(state)
    
    # Create the goals page layout
    with gr.Column(elem_id="goals-page"):
        gr.Markdown("# 🎯 Goals & Planning System")
        gr.Markdown("*Comprehensive goal management with SMART framework, habit tracking, and AI insights*")
        
        # Quick stats overview
        with gr.Row():
            goals_stats = gr.HTML("""
            <div class="stats-overview">
                <div class="stat-card">
                    <h3>📈 Active Goals</h3>
                    <p class="stat-number">0</p>
                </div>
                <div class="stat-card">
                    <h3>🔥 Habit Streaks</h3>
                    <p class="stat-number">0</p>
                </div>
                <div class="stat-card">
                    <h3>🏆 Completed</h3>
                    <p class="stat-number">0</p>
                </div>
                <div class="stat-card">
                    <h3>📊 Success Rate</h3>
                    <p class="stat-number">0%</p>
                </div>
            </div>
            """)
        
        # Main tabs
        with gr.Tabs(elem_id="goals-main-tabs"):
            # SMART Goals
            with gr.TabItem("🎯 SMART Goals", elem_id="smart-goals-tab"):
                smart_form, goal_title, goal_description, smart_checks, goal_category, goal_priority, start_date, target_date, milestone_input, milestones_list, add_milestone_btn, success_metrics, create_goal_btn = create_smart_goal_form()
                
                # Goals list
                gr.Markdown("### Current Goals")
                goals_display = gr.Dataframe(
                    headers=["Title", "Category", "Priority", "Progress", "Target Date", "Status"],
                    datatype=["str", "str", "str", "str", "str", "str"],
                    label="Your Goals"
                )
            
            # Habit Tracking
            with gr.TabItem("🔄 Habit Tracker", elem_id="habits-tab"):
                habit_tracker, habit_name, habit_frequency, habit_target, add_habit_btn, habits_display, habit_calendar, checkin_habit, checkin_btn = create_habit_tracker()
            
            # Planning & Time Blocking
            with gr.TabItem("📅 Planning", elem_id="planning-tab"):
                planning_tools, plan_date, ai_suggestions, generate_suggestions_btn, block_time, block_activity, block_priority, add_block_btn, time_blocks_display, week_start, weekly_focus, weekly_goals_checklist, save_weekly_plan_btn, month_year, monthly_theme, monthly_objectives, save_monthly_plan_btn = create_planning_tools()
            
            # Reflection Journal
            with gr.TabItem("🤔 Reflection", elem_id="reflection-tab"):
                reflection_journal, reflection_week, wins, challenges, lessons, improvements, next_week_focus, gratitude, save_reflection_btn, review_month, monthly_achievements, goals_progress, habits_review, next_month_goals, save_monthly_review_btn, reflections_history = create_reflection_journal()
            
            # Achievements
            with gr.TabItem("🏆 Achievements", elem_id="achievements-tab"):
                achievement_system, achievement_stats, badges_display, next_badge_progress = create_achievement_system()
            
            # Analytics
            with gr.TabItem("📊 Analytics", elem_id="analytics-tab"):
                analytics_dashboard, completion_chart, habit_chart, category_chart, success_insights, performance_analysis, time_insights, productivity_patterns, ai_insights, generate_insights_btn = create_goal_analytics()
            
        
        # Event handlers and functionality will be added here
        # This includes all the interactive functions for:
        # - Creating and managing SMART goals
        # - Tracking habits and streaks
        # - Planning and time blocking
        # - Reflection and journaling
        # - Achievement system
        # - Analytics and insights
                       habit_calendar = gr.HTML(

                            "<div class='habit-calendar-placeholder'>Select a habit to view calendar</div>"
                        )
                        
                        # Habit details
                        habit_details = gr.Markdown(
                            "*Select a habit to see details*"
                        )
                        
                        # Check-in button
                        with gr.Row():
                            check_in_btn = gr.Button("✅ Check In Today")
                            reset_habit_btn = gr.Button("🔄 Reset Habit")
        
        # Goal detail modal (shown when a goal is selected)
        with gr.Group(elem_id="goal-detail-modal", visible=False) as goal_detail_modal:
            gr.Markdown("## Goal Details")
            
            # Goal information
            goal_title_display = gr.Textbox(label="Title", interactive=True)
            goal_description_display = gr.Textbox(label="Description", lines=3, interactive=True)
            goal_status_display = gr.Dropdown(
                choices=["Not Started", "In Progress", "Completed"],
                label="Status",
                interactive=True
            )
            goal_priority_display = gr.Dropdown(
                choices=["High", "Medium", "Low"],
                label="Priority",
                interactive=True
            )
            goal_deadline_display = gr.Textbox(
                label="Deadline (YYYY-MM-DD)",
                interactive=True
            )
            
            # Progress tracking
            goal_progress_display = gr.Slider(
                minimum=0,
                maximum=100,
                value=0,
                step=5,
                label="Progress (%)"
            )
            
            # Goal actions
            with gr.Row():
                save_goal_btn = gr.Button("Save Changes")
                delete_goal_btn = gr.Button("Delete Goal")
                close_detail_btn = gr.Button("Close")
            
            # Related tasks
            with gr.Group():
                gr.Markdown("### Related Tasks")
                related_tasks = gr.Dataframe(
                    headers=["Task", "Status"],
                    datatype=["str", "str"],
                    col_count=(2, "fixed"),
                    row_count=(0, "dynamic"),
                    elem_id="related-tasks-list"
                )
                link_task_btn = gr.Button("Link Task")
        
        # Add goal modal
        with gr.Group(elem_id="add-goal-modal", visible=False) as add_goal_modal:
            gr.Markdown("## Add New Goal")
            
            # Goal information inputs
            new_goal_title = gr.Textbox(label="Title", placeholder="Enter goal title")
            new_goal_description = gr.Textbox(
                label="Description", 
                placeholder="Enter goal description",
                lines=3
            )
            new_goal_status = gr.Dropdown(
                choices=["Not Started", "In Progress", "Completed"],
                label="Status",
                value="Not Started"
            )
            new_goal_priority = gr.Dropdown(
                choices=["High", "Medium", "Low"],
                label="Priority",
                value="Medium"
            )
            new_goal_deadline = gr.Textbox(
                label="Deadline (YYYY-MM-DD)",
                placeholder="YYYY-MM-DD"
            )
            
            # Goal categorization
            with gr.Accordion("Goal Details", open=False):
                gr.Markdown("### 🏷️ Category")
                new_goal_category = gr.Dropdown(
                    choices=["Personal", "Professional", "Health", "Financial", "Learning", "Other"],
                    label="Category",
                    value="Personal"
                )
                
                gr.Markdown("### 📏 Measurability")
                new_goal_measurable = gr.Checkbox(
                    label="Is this goal measurable?",
                    value=True
                )
                new_goal_target = gr.Number(
                    label="Target Value",
                    value=100
                )
                new_goal_unit = gr.Textbox(
                    label="Unit",
                    placeholder="e.g., kg, books, hours"
                )
            
            # Goal actions
            with gr.Row():
                create_goal_btn = gr.Button("Create Goal")
                cancel_add_btn = gr.Button("Cancel")
        
        # Function to render goals
        @handle_exceptions
        def render_goals(view):
            """Render goals based on the selected view"""
            logger.debug(f"Rendering goals with view: {view}")
            goals = safe_get(state, "goals", [])
            
            # Filter goals based on view
            if view == "Active Goals":
                filtered_goals = [g for g in goals if g.get("status", "") != "Completed"]
            elif view == "Completed Goals":
                filtered_goals = [g for g in goals if g.get("status", "") == "Completed"]
            else:  # All Goals
                filtered_goals = goals
            
            # Sort goals by priority and deadline
            priority_order = {"High": 0, "Medium": 1, "Low": 2}
            filtered_goals.sort(key=lambda x: (
                priority_order.get(x.get("priority", "Medium"), 1),
                x.get("deadline", "9999-12-31")
            ))
            
            # Create goal cards
            goal_cards = []
            for goal in filtered_goals:
                # Create goal card HTML
                title = safe_get(goal, "title", "Untitled Goal")
                description = safe_get(goal, "description", "")
                status = safe_get(goal, "status", "Not Started")
                priority = safe_get(goal, "priority", "Medium")
                progress = safe_get(goal, "progress", 0)
                
                # Format deadline
                deadline_str = "No deadline"
                if "deadline" in goal:
                    try:
                        deadline = datetime.datetime.fromisoformat(goal["deadline"])
                        deadline_str = deadline.strftime("%b %d, %Y")
                    except:
                        logger.warning(f"Failed to parse deadline for goal: {goal.get('id', 'unknown')}")
                
                # Status emoji
                status_emoji = "🔴" if status == "Not Started" else \
                              "🟡" if status == "In Progress" else "🟢"
                
                # Priority color
                priority_color = "red" if priority == "High" else \
                                "orange" if priority == "Medium" else "green"
                
                # Create card HTML
                card_html = f"""
                <div class="goal-card priority-{priority.lower()}" data-goal-id="{goal.get('id', '')}">
                    <div class="goal-header">
                        <h3>{title}</h3>
                        <span class="goal-status">{status_emoji} {status}</span>
                    </div>
                    <div class="goal-description">{description}</div>
                    <div class="goal-progress">
                        <div class="progress-bar">
                            <div class="progress-fill" style="width: {progress}%;"></div>
                        </div>
                        <span class="progress-text">{progress}%</span>
                    </div>
                    <div class="goal-footer">
                        <span class="goal-deadline">📅 {deadline_str}</span>
                        <span class="goal-priority" style="color: {priority_color};">⚡ {priority}</span>
                    </div>
                </div>
                """
                
                goal_cards.append(card_html)
            
            # Combine all cards
            if goal_cards:
                return "\n".join(goal_cards)
            else:
                return "<div class='no-goals-message'>No goals found. Click '➕ Add Goal' to create one.</div>"
        
        # Set up view switching
        view_selector.change(
            render_goals,
            inputs=[view_selector],
            outputs=[goals_container]
        )
        
        # Function to show add goal modal
        @handle_exceptions
        def show_add_goal_modal():
            """Show the add goal modal"""
            logger.debug("Showing add goal modal")
            return gr.update(visible=True)
        
        # Function to hide add goal modal
        @handle_exceptions
        def hide_add_goal_modal():
            """Hide the add goal modal"""
            logger.debug("Hiding add goal modal")
            return gr.update(visible=False)
        
        # Set up add goal modal
        add_goal_btn.click(show_add_goal_modal, inputs=[], outputs=[add_goal_modal])
        cancel_add_btn.click(hide_add_goal_modal, inputs=[], outputs=[add_goal_modal])
        
        # Function to create a new goal
        @handle_exceptions
        def create_goal(title, description, status, priority, deadline, 
                       category, is_measurable, target, unit):
            """Create a new goal"""
            logger.debug("Creating new goal")
            if not title.strip():
                logger.warning("Attempted to create goal without title")
                return "Please enter a goal title", gr.update(visible=True)
            
            # Validate deadline format if provided
            deadline_iso = None
            if deadline.strip():
                try:
                    deadline_date = datetime.datetime.strptime(deadline.strip(), "%Y-%m-%d")
                    deadline_iso = deadline_date.isoformat()
                except ValueError:
                    logger.warning(f"Invalid date format for deadline: {deadline}")
                    return "Invalid date format. Use YYYY-MM-DD", gr.update(visible=True)
            
            # Create new goal
            new_goal = {
                "id": generate_id(),
                "title": title.strip(),
                "description": description.strip(),
                "status": status,
                "priority": priority,
                "progress": 0,
                "category": category,
                "created_at": get_timestamp()
            }
            
            if deadline_iso:
                new_goal["deadline"] = deadline_iso
            
            # Add measurability details if applicable
            if is_measurable:
                new_goal["measurable"] = True
                new_goal["target"] = float(target) if target else 100
                new_goal["current"] = 0
                if unit.strip():
                    new_goal["unit"] = unit.strip()
            
            # Add to state
            if "goals" not in state:
                state["goals"] = []
            state["goals"].append(new_goal)
            
            # Update stats
            if "stats" not in state:
                state["stats"] = {}
            if "goals_total" not in state["stats"]:
                state["stats"]["goals_total"] = 0
            state["stats"]["goals_total"] += 1
            
            # Record activity
            record_activity(state, {
                "type": "goal_created",
                "title": title,
                "timestamp": get_timestamp()
            })
            
            # Save to file
            save_data(FILE_PATHS["goals"], state["goals"])
            
            # Update goals display
            goals_html = render_goals(view_selector.value)
            
            # Reset form and hide modal
            return "Goal created successfully!", gr.update(visible=False), goals_html
        
        # Set up create goal action
        create_goal_btn.click(
            create_goal,
            inputs=[
                new_goal_title, new_goal_description, new_goal_status,
                new_goal_priority, new_goal_deadline, new_goal_category,
                new_goal_measurable, new_goal_target, new_goal_unit
            ],
            outputs=[gr.Markdown(visible=False), add_goal_modal, goals_container]
        )
        
        # Function to generate a daily plan
        @handle_exceptions
        def generate_plan():
            """Generate a daily plan using AI"""
            logger.debug("Generating daily plan")
            tasks = safe_get(state, "tasks", [])
            goals = safe_get(state, "goals", [])
            
            # Filter active tasks and goals
            active_tasks = [t for t in tasks if t.get("status", "") != "done"]
            active_goals = [g for g in goals if g.get("status", "") != "Completed"]
            
            # Generate plan
            plan = generate_daily_plan(active_tasks, active_goals)
            
            return plan
        
        # Set up generate plan button
        generate_plan_btn.click(
            generate_plan,
            inputs=[],
            outputs=[daily_plan]
        )
        
        # Function to save a manual plan
        @handle_exceptions
        def save_manual_plan(date, plan):
            """Save a manual daily plan"""
            logger.debug(f"Saving manual plan for date: {date}")
            if not plan.strip():
                logger.warning("Attempted to save empty plan")
                return "Please enter a plan"
            
            # Create or update plan
            if "plans" not in state:
                state["plans"] = {}
            
            state["plans"][date] = {
                "content": plan.strip(),
                "created_at": get_timestamp()
            }
            
            # Save to file
            save_data(FILE_PATHS["plans"], state["plans"])
            
            # Record activity
            record_activity(state, {
                "type": "plan_created",
                "title": f"Plan for {date}",
                "timestamp": get_timestamp()
            })
            
            return "Plan saved successfully!"
        
        # Set up save plan button
        save_plan_btn.click(
            save_manual_plan,
            inputs=[plan_date, manual_plan],
            outputs=[gr.Markdown(visible=False)]
        )
        
        # Function to generate a motivational quote
        @handle_exceptions
        def get_motivational_quote():
            """Get a motivational quote using AI"""
            logger.debug("Generating motivational quote")
            quote = generate_motivational_quote()
            return f"*\"{quote}\"*"
        
        # Set up new quote button
        new_quote_btn.click(
            get_motivational_quote,
            inputs=[],
            outputs=[motivation_quote]
        )
        
        # Function to add a habit
        @handle_exceptions
        def add_habit(name, target):
            """Add a new habit to track"""
            logger.debug(f"Adding new habit: {name}")
            if not name.strip():
                logger.warning("Attempted to add habit without name")
                return "Please enter a habit name"
            
            # Create new habit
            new_habit = {
                "id": generate_id(),
                "name": name.strip(),
                "target": int(target),
                "streak": 0,
                "history": {},
                "created_at": get_timestamp()
            }
            
            # Add to state
            if "habits" not in state:
                state["habits"] = []
            state["habits"].append(new_habit)
            
            # Save to file
            save_data(FILE_PATHS["habits"], state["habits"])
            
            # Record activity
            record_activity(state, {
                "type": "habit_created",
                "title": name,
                "timestamp": get_timestamp()
            })
            
            # Update habits list
            habits_data = []
            for habit in safe_get(state, "habits", []):
                habits_data.append([
                    safe_get(habit, "name", "Unnamed Habit"),
                    safe_get(habit, "streak", 0),
                    safe_get(habit, "target", 21)
                ])
            
            return "Habit added successfully!", habits_data
        
        # Set up add habit button
        add_habit_btn.click(
            add_habit,
            inputs=[new_habit_name, new_habit_target],
            outputs=[gr.Markdown(visible=False), habits_list]
        )
        
        # Initialize goals display
        goals_container.value = render_goals("Active Goals")
        
        # Initialize motivation quote
        motivation_quote.value = get_motivational_quote()
        
        # Initialize habits list
        habits_data = []
        for habit in safe_get(state, "habits", []):
            habits_data.append([
                safe_get(habit, "name", "Unnamed Habit"),
                safe_get(habit, "streak", 0),
                safe_get(habit, "target", 21)
            ])
        habits_list.value = habits_data