"""
Configuration and constants for Tesla Coil Spark Course application
"""

from pathlib import Path

# ============================================================================
# Paths
# ============================================================================

# Base directory (spark-lessons/)
BASE_DIR = Path(__file__).parent.parent

# Content directories
LESSONS_DIR = BASE_DIR / 'lessons'
EXERCISES_DIR = BASE_DIR / 'exercises'
REFERENCE_DIR = BASE_DIR / 'reference'
WORKED_EXAMPLES_DIR = BASE_DIR / 'worked-examples'
ASSETS_DIR = BASE_DIR / 'assets'

# Course structure
COURSE_JSON = BASE_DIR / 'course.json'

# Resources
RESOURCES_DIR = BASE_DIR / 'resources'
STYLES_DIR = RESOURCES_DIR / 'styles'
ICONS_DIR = RESOURCES_DIR / 'icons'
DATABASE_DIR = RESOURCES_DIR / 'database'
SYMBOLS_JSON = RESOURCES_DIR / 'symbols_definitions.json'
IMAGES_DIR = ASSETS_DIR / 'images'

# User data (created in user's home directory)
USER_HOME = Path.home()
USER_DATA_DIR = USER_HOME / '.tesla_spark_course'
USER_DATA_DIR.mkdir(exist_ok=True)

DATABASE_PATH = USER_DATA_DIR / 'progress.db'
USER_NOTES_DIR = USER_DATA_DIR / 'notes'
USER_NOTES_DIR.mkdir(exist_ok=True)

# ============================================================================
# Application Constants
# ============================================================================

APP_NAME = "Tesla Coil Spark Physics Course"
APP_VERSION = "1.0.0"
APP_AUTHOR = "Tesla Coil Community"

# ============================================================================
# UI Constants
# ============================================================================

# Window dimensions
DEFAULT_WINDOW_WIDTH = 1400
DEFAULT_WINDOW_HEIGHT = 900
MIN_WINDOW_WIDTH = 1000
MIN_WINDOW_HEIGHT = 600

# Panel sizes
NAVIGATION_PANEL_MIN_WIDTH = 250
NAVIGATION_PANEL_DEFAULT_WIDTH = 300
PROGRESS_PANEL_MIN_WIDTH = 280
PROGRESS_PANEL_DEFAULT_WIDTH = 320
CONTENT_PANEL_MIN_WIDTH = 600

# Font sizes
FONT_SIZE_SMALL = 10
FONT_SIZE_NORMAL = 12
FONT_SIZE_LARGE = 14
FONT_SIZE_TITLE = 16

# Colors (light theme)
COLOR_PRIMARY = "#3498db"          # Blue
COLOR_SECONDARY = "#9b59b6"        # Purple
COLOR_SUCCESS = "#27ae60"          # Green
COLOR_WARNING = "#f39c12"          # Orange
COLOR_DANGER = "#e74c3c"           # Red
COLOR_ERROR = "#e74c3c"            # Red (alias)
COLOR_INFO = "#2ecc71"             # Light green
COLOR_BACKGROUND = "#ffffff"       # White
COLOR_PANEL_BACKGROUND = "#f8f9fa" # Light gray
COLOR_TEXT = "#2c3e50"             # Dark blue-gray
COLOR_TEXT_SECONDARY = "#7f8c8d"   # Gray
COLOR_BORDER = "#dee2e6"           # Light border
COLOR_HIGHLIGHT = "#e3f2fd"        # Light blue

# Status colors
COLOR_STATUS_COMPLETE = "#27ae60"  # Green
COLOR_STATUS_IN_PROGRESS = "#f39c12"  # Orange
COLOR_STATUS_NOT_STARTED = "#95a5a6"  # Gray
COLOR_STATUS_LOCKED = "#bdc3c7"    # Light gray

# Progress bar colors
COLOR_PROGRESS_BG = "#ecf0f1"
COLOR_PROGRESS_FG = "#3498db"
COLOR_PROGRESS_COMPLETE = "#2ecc71"

# ============================================================================
# Course Constants
# ============================================================================

TOTAL_LESSONS = 30
TOTAL_EXERCISES = 18
TOTAL_POINTS = 525
TOTAL_PARTS = 4

# Difficulty levels
DIFFICULTY_BEGINNER = "beginner"
DIFFICULTY_INTERMEDIATE = "intermediate"
DIFFICULTY_ADVANCED = "advanced"

DIFFICULTY_COLORS = {
    DIFFICULTY_BEGINNER: "#2ecc71",      # Green
    DIFFICULTY_INTERMEDIATE: "#f39c12",  # Orange
    DIFFICULTY_ADVANCED: "#e74c3c"       # Red
}

# Lesson status
STATUS_NOT_STARTED = "not_started"
STATUS_IN_PROGRESS = "in_progress"
STATUS_COMPLETED = "completed"

# Status icons (Unicode)
ICON_COMPLETE = "✓"
ICON_IN_PROGRESS = "⊙"
ICON_NOT_STARTED = "○"
ICON_LOCKED = "🔒"
ICON_EXERCISE = "⚡"
ICON_BOOKMARK = "⭐"

# ============================================================================
# Progress & Gamification Constants
# ============================================================================

# Level thresholds (points)
LEVELS = [
    (0, "Novice", "Circuit Curious"),
    (100, "Learner", "Circuit Explorer"),
    (250, "Practitioner", "Circuit Master"),
    (400, "Expert", "Tesla Scholar"),
]

# Achievement definitions
ACHIEVEMENTS = {
    'quick_learner': {
        'name': 'Quick Learner',
        'description': 'Complete first lesson in under 15 minutes',
        'icon': '🏆',
        'condition': 'first_lesson_under_15min'
    },
    'accuracy_master': {
        'name': 'Accuracy Master',
        'description': 'Maintain 85%+ average on exercises',
        'icon': '🎯',
        'condition': 'exercise_avg_85_percent'
    },
    'bookworm': {
        'name': 'Bookworm',
        'description': 'Complete Part 1 in under 3 hours',
        'icon': '📚',
        'condition': 'part1_under_3hours'
    },
    'streak_master': {
        'name': 'Streak Master',
        'description': 'Study for 7 consecutive days',
        'icon': '🔥',
        'condition': 'streak_7_days'
    },
    'lab_rat': {
        'name': 'Lab Rat',
        'description': 'Complete 5 exercises with perfect scores',
        'icon': '🧪',
        'condition': 'perfect_5_exercises'
    },
    'insight': {
        'name': 'Insight',
        'description': 'Average fewer than 2 hints per exercise',
        'icon': '💡',
        'condition': 'avg_hints_under_2'
    },
    'power_user': {
        'name': 'Power User',
        'description': 'Use 10+ keyboard shortcuts',
        'icon': '⚡',
        'condition': 'shortcuts_10_plus'
    },
    'graduate': {
        'name': 'Graduate',
        'description': 'Complete all 30 lessons',
        'icon': '🎓',
        'condition': 'all_lessons_complete'
    },
}

# ============================================================================
# Auto-save Settings
# ============================================================================

AUTO_SAVE_INTERVAL = 10000  # milliseconds (10 seconds)
PROGRESS_UPDATE_INTERVAL = 1000  # milliseconds (1 second for time tracking)

# ============================================================================
# Markdown Rendering
# ============================================================================

# MathJax CDN
MATHJAX_CDN = "https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"

# Markdown extensions
MARKDOWN_EXTENSIONS = [
    'extra',
    'codehilite',
    'tables',
    'toc',
    'pymdownx.arithmatex',
    'pymdownx.superfences',
    'pymdownx.highlight',
]

# ============================================================================
# Keyboard Shortcuts
# ============================================================================

SHORTCUTS = {
    'next_lesson': 'Ctrl+Right',
    'prev_lesson': 'Ctrl+Left',
    'first_lesson': 'Ctrl+Home',
    'last_lesson': 'Ctrl+End',
    'search': 'Ctrl+F',
    'bookmark': 'Ctrl+B',
    'mark_complete': 'Ctrl+M',
    'exercises': 'Ctrl+E',
    'references': 'Ctrl+R',
    'notes': 'Ctrl+N',
    'dashboard': 'Ctrl+P',
    'fullscreen': 'F11',
    'quit': 'Ctrl+Q',
}

# ============================================================================
# Default User Settings
# ============================================================================

DEFAULT_SETTINGS = {
    'theme': 'light',
    'font_size': FONT_SIZE_NORMAL,
    'auto_save': True,
    'show_hints': True,
    'learning_path': 'intermediate',
    'auto_mark_complete': True,  # Auto-mark at 95% scroll
    'sound_effects': False,
}

# ============================================================================
# Debug Mode
# ============================================================================

DEBUG = True  # Set to False for production
VERBOSE_LOGGING = DEBUG