# =========================================================
# PYDANTIC MODELS - AADS & MARKETPLACE SYSTEM
# =========================================================
# Complete data models for advertisements, products, and orders
# =========================================================

from pydantic import BaseModel, Field, HttpUrl, field_validator
from typing import Optional, List, Dict, Any
from datetime import datetime
from enum import Enum
import re


# =========================================================
# ENUMS - Status Types
# =========================================================

class AdStatus(str, Enum):
    """Ad campaign status workflow"""
    DRAFT = "draft"              # Created but not submitted
    PENDING = "pending"          # Awaiting admin approval
    ACTIVE = "active"            # Approved and running
    PAUSED = "paused"            # Temporarily stopped by advertiser
    REJECTED = "rejected"        # Rejected by admin
    COMPLETED = "completed"      # End date reached
    CANCELLED = "cancelled"      # Cancelled by advertiser


class ProductStatus(str, Enum):
    """Product listing status"""
    DRAFT = "draft"
    ACTIVE = "active"
    OUT_OF_STOCK = "out_of_stock"
    INACTIVE = "inactive"


class OrderStatus(str, Enum):
    """Order fulfillment workflow"""
    PENDING = "pending"
    CONFIRMED = "confirmed"
    PROCESSING = "processing"
    SHIPPED = "shipped"
    DELIVERED = "delivered"
    CANCELLED = "cancelled"
    REFUNDED = "refunded"


class AdCategory(str, Enum):
    """Advertisement categories"""
    ISLAMIC_BOOKS = "Islamic Books & Quran"
    ATTAR_PERFUMES = "Attar, Oudh & Perfumes"
    ABAYAS_WEAR = "Abayas & Modest Wear"
    PRAYER_MATS = "Prayer Mats & Tasbih"
    HALAL_FOODS = "Halal Foods & Honey"
    DATES_DRY_FRUITS = "Dates & Dry Fruits"
    ISLAMIC_ART = "Islamic Art & Home Decor"
    HIJABS_SCARVES = "Hijabs & Scarves"
    THOBES_KURTAS = "Thobes & Kurtas"
    HALAL_COSMETICS = "Halal Cosmetics & Health"
    HAJJ_UMRAH = "Hajj & Umrah Essentials"
    ISLAMIC_ELECTRONICS = "Islamic Electronics & Clocks"
    KIDS_TOYS = "Kids Islamic Toys & Books"
    HALAL_MEAT = "Halal Meat & Groceries"
    CAPS_TURBANS = "Keffiyeh, Caps & Turbans"
    ISLAMIC_JEWELRY = "Islamic Jewelry & Rings"
    ISLAMIC_GIFTS = "Islamic Gifts & Hampers"
    HERBAL_MEDICINE = "Herbal Medicine & Tibb-e-Nabawi"
    CHARITY_SADAQAH = "Charity & Sadaqah Jariyah"
    ISLAMIC_COURSES = "Islamic Courses & Services"
    OTHER_HALAL = "Other Halal Products"
    # Legacy categories
    BOOKS = "Books"
    EDUCATION = "Education"
    DECOR = "Decor"
    FINANCE = "Finance"
    PRODUCTS = "Products"
    SERVICES = "Services"
    CHARITY = "Charity"
    EVENTS = "Events"
    PRAYER_ESSENTIALS = "Prayer Essentials"
    ISLAMIC_CLOTHING = "Islamic Clothing"
    HOME_DECOR = "Home Decor"
    JEWELRY = "Jewelry"
    ACCESSORIES = "Accessories"
    GIFTS = "Gifts"
    DIGITAL_PRODUCTS = "Digital Products"


class ProductCategory(str, Enum):
    """Product categories"""
    ISLAMIC_BOOKS = "Islamic Books & Quran"
    ATTAR_PERFUMES = "Attar, Oudh & Perfumes"
    ABAYAS_WEAR = "Abayas & Modest Wear"
    PRAYER_MATS = "Prayer Mats & Tasbih"
    HALAL_FOODS = "Halal Foods & Honey"
    DATES_DRY_FRUITS = "Dates & Dry Fruits"
    ISLAMIC_ART = "Islamic Art & Home Decor"
    HIJABS_SCARVES = "Hijabs & Scarves"
    THOBES_KURTAS = "Thobes & Kurtas"
    HALAL_COSMETICS = "Halal Cosmetics & Health"
    HAJJ_UMRAH = "Hajj & Umrah Essentials"
    ISLAMIC_ELECTRONICS = "Islamic Electronics & Clocks"
    KIDS_TOYS = "Kids Islamic Toys & Books"
    HALAL_MEAT = "Halal Meat & Groceries"
    CAPS_TURBANS = "Keffiyeh, Caps & Turbans"
    ISLAMIC_JEWELRY = "Islamic Jewelry & Rings"
    ISLAMIC_GIFTS = "Islamic Gifts & Hampers"
    HERBAL_MEDICINE = "Herbal Medicine & Tibb-e-Nabawi"
    CHARITY_SADAQAH = "Charity & Sadaqah Jariyah"
    ISLAMIC_COURSES = "Islamic Courses & Services"
    OTHER_HALAL = "Other Halal Products"
    # Legacy categories
    BOOKS = "Books"
    PRAYER_ESSENTIALS = "Prayer Essentials"
    ISLAMIC_CLOTHING = "Islamic Clothing"
    HOME_DECOR = "Home Decor"
    JEWELRY = "Jewelry"
    ACCESSORIES = "Accessories"
    GIFTS = "Gifts"
    DIGITAL_PRODUCTS = "Digital Products"
    EDUCATION = "Education"
    DECOR = "Decor"
    FINANCE = "Finance"
    PRODUCTS = "Products"
    SERVICES = "Services"
    CHARITY = "Charity"
    EVENTS = "Events"


# =========================================================
# AD CAMPAIGN MODELS
# =========================================================

class AdCreate(BaseModel):
    """Model for creating a new ad campaign"""
    title: str = Field(..., min_length=3, max_length=100)
    description: str = Field(..., min_length=3, max_length=1000)
    image_url: str = Field(..., description="URL to ad banner image")
    destination_url: str = Field(..., description="Landing page URL")
    category: str = Field(..., min_length=2, max_length=100)
    budget: float = Field(0.0, ge=0, description="Total budget (0 = Free)")
    daily_budget: Optional[float] = Field(None, ge=0, description="Daily spending limit")
    start_date: datetime
    end_date: datetime
    targeting: Optional[dict] = Field(default_factory=dict, description="Geographic/demographic targeting")
    cta_text: Optional[str] = Field("Shop Now", description="Call to action button label")
    
    @field_validator('end_date')
    @classmethod
    def validate_dates(cls, v, info):
        if 'start_date' in info.data and v <= info.data['start_date']:
            raise ValueError('end_date must be after start_date')
        return v


class AdUpdate(BaseModel):
    """Model for updating an existing ad campaign"""
    title: Optional[str] = Field(None, min_length=3, max_length=100)
    description: Optional[str] = Field(None, min_length=3, max_length=1000)
    image_url: Optional[str] = None
    destination_url: Optional[str] = None
    category: Optional[str] = None
    budget: Optional[float] = Field(None, gt=0)
    daily_budget: Optional[float] = Field(None, gt=0)
    start_date: Optional[datetime] = None
    end_date: Optional[datetime] = None
    targeting: Optional[dict] = None
    cta_text: Optional[str] = Field(None, description="Call to action button label")


class AdResponse(BaseModel):
    """Complete ad campaign response"""
    id: str = Field(..., alias="_id", description="MongoDB document ID")
    ad_id: str
    advertiser_uid: str
    advertiser_email: Optional[str] = None
    title: str
    description: str
    image_url: str
    destination_url: str
    category: str
    status: AdStatus
    budget: float
    daily_budget: Optional[float] = None
    cta_text: Optional[str] = "Shop Now"
    spent: float = 0.0
    impressions: int = 0
    clicks: int = 0
    conversions: int = 0
    start_date: datetime
    end_date: datetime
    targeting: dict = Field(default_factory=dict)
    created_at: datetime
    updated_at: datetime
    submitted_at: Optional[datetime] = None
    approved_at: Optional[datetime] = None
    rejected_at: Optional[datetime] = None
    rejection_reason: Optional[str] = None

    class Config:
        populate_by_name = True


# =========================================================
# PRODUCT MODELS
# =========================================================

class ProductVariant(BaseModel):
    """Product variant (size, color, etc.)"""
    variant_id: str
    name: str  # e.g., "Large", "Blue", "Hardcover"
    price_adjustment: float = 0.0  # Price difference from base
    stock: int = 0
    sku: Optional[str] = None


class ProductCreate(BaseModel):
    """Model for creating a new product"""
    title: str = Field(..., min_length=3, max_length=200)
    description: str = Field(..., min_length=3, max_length=5000)
    price: float = Field(..., gt=0)
    compare_at_price: Optional[float] = Field(None, gt=0, description="Original price (for showing discounts)")
    category: str = Field(..., min_length=2, max_length=100)
    subcategory: Optional[str] = None
    tags: List[str] = Field(default_factory=list, description="Search tags")
    images: List[str] = Field(..., min_items=1, max_items=5, description="Product images (1 to 5 images)")
    stock: int = Field(..., ge=0)
    sku: Optional[str] = Field(None, description="Stock Keeping Unit")
    weight: Optional[float] = Field(None, gt=0, description="Weight in kg")
    dimensions: Optional[dict] = Field(None, description="Length, width, height in cm")
    variants: List[ProductVariant] = Field(default_factory=list)
    shipping_cost: float = Field(0.0, ge=0)
    shipping_regions: List[str] = Field(default_factory=lambda: ["Worldwide"])
    is_digital: bool = False
    digital_file_url: Optional[str] = Field(None, description="Download URL for digital products")
    
    @field_validator('compare_at_price')
    @classmethod
    def validate_compare_price(cls, v, info):
        if v is not None and 'price' in info.data and v <= info.data['price']:
            raise ValueError('compare_at_price must be greater than price')
        return v


class ProductUpdate(BaseModel):
    """Model for updating an existing product"""
    title: Optional[str] = Field(None, min_length=3, max_length=200)
    description: Optional[str] = Field(None, min_length=3, max_length=5000)
    price: Optional[float] = Field(None, gt=0)
    compare_at_price: Optional[float] = Field(None, gt=0)
    category: Optional[str] = None
    subcategory: Optional[str] = None
    tags: Optional[List[str]] = None
    images: Optional[List[str]] = None
    stock: Optional[int] = Field(None, ge=0)
    sku: Optional[str] = None
    weight: Optional[float] = Field(None, gt=0)
    dimensions: Optional[dict] = None
    variants: Optional[List[ProductVariant]] = None
    shipping_cost: Optional[float] = Field(None, ge=0)
    shipping_regions: Optional[List[str]] = None
    is_digital: Optional[bool] = None
    digital_file_url: Optional[str] = None
    status: Optional[ProductStatus] = None


class ProductResponse(BaseModel):
    """Complete product response"""
    id: str = Field(..., alias="_id")
    product_id: str
    seller_uid: str
    seller_name: str
    seller_email: Optional[str] = None
    shop_name: Optional[str] = None
    title: str
    description: str
    price: float
    compare_at_price: Optional[float] = None
    category: str
    subcategory: Optional[str] = None
    tags: List[str] = Field(default_factory=list)
    images: List[str]
    stock: int
    sku: Optional[str] = None
    weight: Optional[float] = None
    dimensions: Optional[dict] = None
    variants: List[ProductVariant] = Field(default_factory=list)
    shipping_cost: float = 0.0
    shipping_regions: List[str] = Field(default_factory=list)
    is_digital: bool = False
    digital_file_url: Optional[str] = None
    status: ProductStatus
    rating: float = 0.0
    rating_count: int = 0
    total_sales: int = 0
    views: int = 0
    created_at: datetime
    updated_at: datetime

    class Config:
        populate_by_name = True


# =========================================================
# ORDER & PAYMENT MODELS
# =========================================================

class PaymentMethod(str, Enum):
    WALLET = "wallet"
    CARD = "card"
    UPI = "upi"
    COD = "cod"
    SANDBOX = "sandbox"


class PaymentStatus(str, Enum):
    PENDING = "pending"
    COMPLETED = "completed"
    FAILED = "failed"
    REFUNDED = "refunded"


class OrderItem(BaseModel):
    """Single item in an order"""
    product_id: str
    product_title: Optional[str] = "Product"
    variant_id: Optional[str] = None
    variant_name: Optional[str] = None
    quantity: int = Field(default=1, gt=0)
    unit_price: Optional[float] = 0.0
    total_price: Optional[float] = 0.0
    seller_uid: Optional[str] = ""


class ShippingAddress(BaseModel):
    """Shipping address information"""
    full_name: str = "Customer"
    phone: str = ""
    address_line1: str = "Address"
    address_line2: Optional[str] = None
    city: str = "City"
    state: Optional[str] = None
    postal_code: str = "000000"
    country: str = "India"


class OrderCreate(BaseModel):
    """Model for creating a new order"""
    items: List[OrderItem] = Field(..., min_items=1)
    shipping_address: Optional[ShippingAddress] = Field(default_factory=ShippingAddress)
    billing_address: Optional[ShippingAddress] = None
    payment_method: str = "online"
    notes: Optional[str] = None


class WalletTopUpRequest(BaseModel):
    """Model for topping up ad/user wallet"""
    amount: float = Field(..., gt=0, description="Amount in currency units (INR/USD)")
    payment_method: Optional[str] = "sandbox"
    notes: Optional[str] = None
    transaction_id: Optional[str] = Field(None, description="Client or caller specified transaction ID")
    idempotency_key: Optional[str] = Field(None, description="Idempotency key to guarantee single processing")


class PaymentIntentCreate(BaseModel):
    """Model for initializing a payment intent"""
    amount: float = Field(..., gt=0)
    currency: str = "INR"
    purpose: str = "order"  # "order" or "wallet_topup"
    order_id: Optional[str] = None
    payment_method: Optional[str] = "sandbox"


class PaymentVerifyRequest(BaseModel):
    """Model for verifying a payment"""
    payment_id: str
    order_id: Optional[str] = None
    signature: Optional[str] = None


class ShopSettingsUpdate(BaseModel):
    """Model for shopkeeper settings and shop creation"""
    shop_name: Optional[str] = None
    category: Optional[str] = None
    owner_name: Optional[str] = None
    description: Optional[str] = None
    contact: Optional[str] = None
    email: Optional[str] = None
    phone: Optional[str] = None
    address: Optional[str] = None
    city: Optional[str] = None
    banner_url: Optional[str] = None
    logo_url: Optional[str] = None
    shop_photo: Optional[str] = None  # Base64 or image URL strictly under 30KB
    is_created: Optional[bool] = None


class OrderResponse(BaseModel):
    """Complete order response"""
    id: str = Field(..., alias="_id")
    order_id: str
    buyer_uid: str
    buyer_email: str
    seller_uid: str  # For single-seller orders
    items: List[OrderItem]
    subtotal: float
    shipping_cost: float
    tax: float
    total: float
    status: OrderStatus
    shipping_address: ShippingAddress
    billing_address: Optional[ShippingAddress] = None
    payment_method: str
    payment_status: str = "pending"
    tracking_number: Optional[str] = None
    notes: Optional[str] = None
    created_at: datetime
    updated_at: datetime
    shipped_at: Optional[datetime] = None
    delivered_at: Optional[datetime] = None

    class Config:
        populate_by_name = True


# =========================================================
# ANALYTICS MODELS
# =========================================================

class AdEvent(BaseModel):
    """Ad interaction event"""
    ad_id: str
    event_type: str  # "impression", "click", "conversion"
    user_id: Optional[str] = None
    session_id: Optional[str] = None
    device_type: Optional[str] = None
    platform: Optional[str] = None
    location: Optional[dict] = None
    source: str = "app"
    timestamp: datetime = Field(default_factory=datetime.utcnow)


class AdAnalytics(BaseModel):
    """Aggregated ad analytics"""
    ad_id: str
    date: str  # YYYY-MM-DD
    impressions: int = 0
    clicks: int = 0
    conversions: int = 0
    spent: float = 0.0
    ctr: float = 0.0  # Click-through rate
    cpc: float = 0.0  # Cost per click
    conversion_rate: float = 0.0


ALLOWED_ADMOB_EVENT_TYPES = {
    "request", "loaded", "impression", "click",
    "failed_to_load", "failed_to_show", "dismissed"
}

class AdmobEventCreate(BaseModel):
    """Event payload emitted by Flutter Google Mobile Ads SDK with strict validation (F-06)"""
    event_type: str = Field(..., max_length=32, description="Lifecycle event type")
    ad_unit_id: Optional[str] = Field(None, max_length=128)
    ad_format: Optional[str] = Field("interstitial", max_length=32)
    platform: Optional[str] = Field("android", max_length=16)
    is_test_ad: Optional[bool] = False
    error_code: Optional[int] = Field(None, ge=0, le=100000)
    error_message: Optional[str] = Field(None, max_length=256)
    placement: Optional[str] = Field(None, max_length=64)
    duration_seconds: Optional[int] = Field(5, ge=0, le=3600)
    user_id: Optional[str] = Field(None, max_length=128)
    metadata: Optional[Dict[str, Any]] = None
    timestamp: datetime = Field(default_factory=datetime.utcnow)

    @field_validator('event_type')
    @classmethod
    def validate_event_type(cls, v: str) -> str:
        clean = (v or "").strip().lower()
        if clean not in ALLOWED_ADMOB_EVENT_TYPES:
            raise ValueError(f"Invalid AdMob event_type '{v}'. Must be one of: {sorted(ALLOWED_ADMOB_EVENT_TYPES)}")
        return clean

    @field_validator('metadata')
    @classmethod
    def validate_metadata(cls, v: Optional[Dict[str, Any]]) -> Optional[Dict[str, Any]]:
        if v is None:
            return None
        if len(v) > 10:
            raise ValueError("AdMob event metadata cannot exceed 10 keys")
        for key, val in v.items():
            if len(str(key)) > 64:
                raise ValueError(f"Metadata key '{key}' exceeds 64 characters")
            if len(str(val)) > 256:
                raise ValueError(f"Metadata value for key '{key}' exceeds 256 characters")
        return v

    @field_validator('ad_format')
    @classmethod
    def validate_ad_format(cls, v: Optional[str]) -> Optional[str]:
        if v is None:
            return v
        clean = v.strip().lower()
        if clean not in {"interstitial", "banner", "rewarded", "app_open"}:
            raise ValueError("Unsupported AdMob format")
        return clean

    @field_validator('ad_unit_id')
    @classmethod
    def validate_ad_unit_id(cls, v: Optional[str]) -> Optional[str]:
        if v is not None:
            clean = v.strip()
            if not re.fullmatch(r"ca-app-pub-\d{16}/\d{10}", clean):
                raise ValueError("Invalid AdMob unit ID format")
            return clean
        return v

    @field_validator('platform')
    @classmethod
    def validate_platform(cls, v: Optional[str]) -> Optional[str]:
        if v is None:
            return v
        clean = v.strip().lower()
        if clean not in {"android", "ios"}:
            raise ValueError("Unsupported AdMob platform")
        return clean


class AdmobConfigUpdate(BaseModel):
    """Dynamic AdMob Remote Configuration Update Payload"""
    ads_enabled: Optional[bool] = None
    real_ads_enabled: Optional[bool] = None
    min_seconds_between_ads: Optional[int] = None
    content_rating: Optional[str] = None
    banner_ads_enabled: Optional[bool] = None
    home_ads: Optional[bool] = None
    chat_ads: Optional[bool] = None
    hadith_ads: Optional[bool] = None
    tafsir_ads: Optional[bool] = None
    qaza_ads: Optional[bool] = None
    admob_app_id_android: Optional[str] = None
    admob_interstitial_id_android: Optional[str] = None
    admob_banner_id_android: Optional[str] = None
    admob_rewarded_id_android: Optional[str] = None
    admob_interstitial_id_ios: Optional[str] = None
    admob_banner_id_ios: Optional[str] = None


# =========================================================
# BANK ACCOUNT & PAYOUT MODELS
# =========================================================

class ShopkeeperBankDetails(BaseModel):
    """Bank account details for a shopkeeper to receive monthly settlements"""
    account_holder_name: str
    bank_name: str
    account_number: str
    ifsc_code: str
    upi_id: Optional[str] = None
    account_type: Optional[str] = "savings"  # savings | current


class PlatformBankSettings(BaseModel):
    """Platform owner bank and payment gateway configuration"""
    account_holder_name: Optional[str] = None
    bank_name: Optional[str] = None
    account_number: Optional[str] = None
    ifsc_code: Optional[str] = None
    upi_id: Optional[str] = None
    gateway_provider: Optional[str] = "razorpay"  # razorpay | stripe | direct_upi
    razorpay_key_id: Optional[str] = None
    razorpay_key_secret: Optional[str] = None
    google_play_license_key: Optional[str] = None
    platform_commission_percent: Optional[float] = 7.0
    auto_settlement: Optional[bool] = True


class SubscriptionCreate(BaseModel):
    """Purchase a subscription tier"""
    plan_id: str
    billing_cycle: Optional[str] = "monthly"  # monthly | annual
    payment_method: str = "google_play"  # google_play | razorpay | upi | card
    purchase_token: Optional[str] = None  # Google Play purchase token
    transaction_id: Optional[str] = None


# =========================================================
# PROFESSIONAL ENTERPRISE USER ARCHITECTURE
# =========================================================

class UserProfileModel(BaseModel):
    """User personal identity and localization"""
    display_name: str
    email: str
    phone: Optional[str] = None
    avatar_url: Optional[str] = None
    locale: str = "en"
    timezone: str = "Asia/Kolkata"


class UserAuthModel(BaseModel):
    """Access control, credentials and lifecycle status"""
    role: str = "USER"  # "USER" | "MASJID_ADMIN" | "MUFTI" | "APP_ADMIN" | "ADMIN"
    provider: str = "google"  # "password" | "google" | "phone"
    is_email_verified: bool = False
    status: str = "ACTIVE"  # "ACTIVE" | "SUSPENDED" | "BANNED"


class UserMuftiAffiliation(BaseModel):
    """Mufti verification credentials and history"""
    is_mufti: bool = False
    status: str = "NONE"  # "NONE" | "PENDING" | "APPROVED" | "REJECTED"
    applied_at: Optional[datetime] = None
    resolved_at: Optional[datetime] = None


class UserMasjidAffiliation(BaseModel):
    """Masjid administrative links and followed masjids"""
    managed_masjid_id: str = ""
    status: str = "NONE"  # "NONE" | "PENDING" | "APPROVED"
    co_admin_masjids: List[str] = Field(default_factory=list)
    followed_masjids: List[str] = Field(default_factory=list)


class UserCommunityModel(BaseModel):
    """Community affiliations: Masjids & Mufti roles"""
    mufti: UserMuftiAffiliation = Field(default_factory=UserMuftiAffiliation)
    masjid: UserMasjidAffiliation = Field(default_factory=UserMasjidAffiliation)


class UserBusinessModel(BaseModel):
    """Business Suite: shops, advertisements, activation status"""
    is_enabled: bool = False
    activated_at: Optional[datetime] = None
    expires_at: Optional[datetime] = None
    is_expired: bool = False
    shop_id: Optional[str] = None
    wallet_balance: float = 0.0
    total_ads_count: int = 0


class UserMetricsModel(BaseModel):
    """High-speed engagement counters for dashboards & analysis"""
    prayers_tracked: int = 0
    consecutive_streak: int = 0
    total_orders_placed: int = 0
    total_spent_inr: float = 0.0
    login_count: int = 1


class UserAnalyticsModel(BaseModel):
    """Telemetry, audit logs, DAU/MAU cohorts"""
    signup_platform: str = "android"  # "android" | "web" | "ios"
    app_version: str = "1.0.0"
    created_at: datetime = Field(default_factory=datetime.utcnow)
    updated_at: datetime = Field(default_factory=datetime.utcnow)
    last_active_at: datetime = Field(default_factory=datetime.utcnow)


class UserFavoritesModel(BaseModel):
    """User favorites (Surahs & Ayahs) synchronized across devices"""
    surahs: List[dict] = Field(default_factory=list)
    ayahs: List[dict] = Field(default_factory=list)


class UserSubscriptionModel(BaseModel):
    """Subscription entitlements for all 5 canonical tiers + ₹5 acquisition offer"""
    is_pro: bool = False
    is_progress_plus: bool = False
    is_ad_free_admob: bool = False
    has_historical_progress: bool = False
    has_premium_themes: bool = False
    show_sponsored_card: bool = True
    plan_id: Optional[str] = "free"  # "free" | "sahih_ad_free_monthly" | "sahih_progress_plus_monthly" | "sahih_pro_monthly" | "sahih_pro_6month" | "sahih_pro_yearly" | "sahih_pro_intro_5"
    tier: Optional[str] = "FREE"  # "FREE" | "AD_FREE_ONLY" | "PROGRESS_PLUS" | "PRO"
    status: str = "FREE"  # "FREE" | "ACTIVE" | "EXPIRED" | "CANCELLED"
    activated_at: Optional[datetime] = None
    expires_at: Optional[datetime] = None
    payment_method: Optional[str] = None  # "razorpay" | "google_play" | "manual_grant"
    transaction_id: Optional[str] = None
    daily_ai_queries_used: int = 0
    last_query_date: Optional[str] = None  # YYYY-MM-DD
    has_claimed_intro_offer: bool = False
    intro_offer_claimed_at: Optional[datetime] = None
    intro_offer_declined_count: int = 0
    intro_offer_last_declined_at: Optional[datetime] = None
    auto_renew: bool = True


class UserModel(BaseModel):
    """Root Enterprise User Document for MongoDB"""
    uid: str
    profile: UserProfileModel
    auth: UserAuthModel
    community: UserCommunityModel = Field(default_factory=UserCommunityModel)
    business: UserBusinessModel = Field(default_factory=UserBusinessModel)
    subscription: UserSubscriptionModel = Field(default_factory=UserSubscriptionModel)
    metrics: UserMetricsModel = Field(default_factory=UserMetricsModel)
    analytics: UserAnalyticsModel = Field(default_factory=UserAnalyticsModel)
    favorites: UserFavoritesModel = Field(default_factory=UserFavoritesModel)

    # Legacy flat mirrors for zero-downtime backward compatibility
    username: Optional[str] = None
    email: Optional[str] = None
    role: Optional[str] = "USER"
    is_pro: bool = False
    mufti_status: Optional[str] = "NONE"
    masjid_status: Optional[str] = "NONE"
    managed_masjid_id: Optional[str] = ""
    followed_masjids: List[str] = Field(default_factory=list)
    is_business_enabled: bool = False
    business_activated_at: Optional[datetime] = None
    business_expires_at: Optional[datetime] = None
    has_shop: bool = False
    created_at: Optional[datetime] = None
    updated_at: Optional[datetime] = None


# =========================================================
# PROFESSIONAL ENTERPRISE MASJID ARCHITECTURE
# =========================================================

class MasjidContactModel(BaseModel):
    """Public contact info for community inquiries"""
    phone: Optional[str] = None
    email: Optional[str] = None
    website: Optional[str] = None


class MasjidIdentityModel(BaseModel):
    """Core public identity, fiqh, verification, and facilities"""
    name: str
    fiqh: str = "Sunni"  # "Sunni" | "Shia" | "Ahmadi"
    description: Optional[str] = None
    is_verified: bool = False
    verified_at: Optional[datetime] = None
    facilities: List[str] = Field(default_factory=list)
    capacity: Optional[int] = None
    cover_image_url: Optional[str] = None
    gallery_urls: List[str] = Field(default_factory=list)
    contact: MasjidContactModel = Field(default_factory=MasjidContactModel)


class GeoPointModel(BaseModel):
    """Standard GeoJSON Point for MongoDB 2dsphere index"""
    type: str = "Point"
    coordinates: List[float] = Field(default_factory=lambda: [39.8262, 21.4225])  # [longitude, latitude]


class MasjidAddressModel(BaseModel):
    """Physical address hierarchy and localization"""
    country: str
    address_lines: List[str] = Field(default_factory=list)
    district: Optional[str] = None
    village: Optional[str] = None
    full_address: Optional[str] = None
    location_label: Optional[str] = None
    timezone_offset_hours: float = 5.5


class MasjidAdministrationModel(BaseModel):
    """Ownership, co-admin delegates, and status"""
    admin_uid: str
    co_admins: List[str] = Field(default_factory=list)
    approved_by: Optional[str] = None
    status: str = "APPROVED"  # "PENDING" | "APPROVED" | "FLAGGED"


class PrayerTimeSlot(BaseModel):
    """Azan and Jamaat slot"""
    azan: str = "-"
    jamaat: str = "-"


class SunriseTimeSlot(BaseModel):
    time: str = "-"


class MasjidDailyPrayerModel(BaseModel):
    """5 daily prayer times + sunrise"""
    fajr: PrayerTimeSlot = Field(default_factory=PrayerTimeSlot)
    sunrise: SunriseTimeSlot = Field(default_factory=SunriseTimeSlot)
    zuhr: PrayerTimeSlot = Field(default_factory=PrayerTimeSlot)
    asr: PrayerTimeSlot = Field(default_factory=PrayerTimeSlot)
    maghrib: PrayerTimeSlot = Field(default_factory=PrayerTimeSlot)
    isha: PrayerTimeSlot = Field(default_factory=PrayerTimeSlot)


class MasjidJummaPrayerModel(BaseModel):
    """Friday congregation prayer schedules"""
    khutbah: str = "-"
    prayer: str = "-"
    shifts: List[str] = Field(default_factory=list)


class MasjidEidPrayerModel(BaseModel):
    """Eid prayers"""
    fitr: str = "-"
    adha: str = "-"
    is_enabled: bool = False


class MasjidHijriModel(BaseModel):
    """Local moon-sighting calendar calibration"""
    adjustment: int = 0
    override: Optional[str] = None


class MasjidPrayersModel(BaseModel):
    """Consolidated prayer timing and automation systems"""
    daily: MasjidDailyPrayerModel = Field(default_factory=MasjidDailyPrayerModel)
    jumma: MasjidJummaPrayerModel = Field(default_factory=MasjidJummaPrayerModel)
    eid: MasjidEidPrayerModel = Field(default_factory=MasjidEidPrayerModel)
    hijri: MasjidHijriModel = Field(default_factory=MasjidHijriModel)
    automation_config: dict = Field(default_factory=dict)


class MasjidMetricsModel(BaseModel):
    """Pre-aggregated counters for fast dashboard ranking"""
    followers_count: int = 0
    active_events_count: int = 0
    reports_count: int = 0


class MasjidAuditModel(BaseModel):
    """Auditing and update timestamps"""
    created_at: datetime = Field(default_factory=datetime.utcnow)
    updated_at: datetime = Field(default_factory=datetime.utcnow)
    last_timings_updated_at: Optional[datetime] = None


class MasjidModel(BaseModel):
    """Master Enterprise Masjid Document"""
    masjid_id: str
    identity: MasjidIdentityModel
    location: GeoPointModel  # GeoJSON Point for 2dsphere index
    address: MasjidAddressModel
    administration: MasjidAdministrationModel
    prayers: MasjidPrayersModel = Field(default_factory=MasjidPrayersModel)
    metrics: MasjidMetricsModel = Field(default_factory=MasjidMetricsModel)
    audit: MasjidAuditModel = Field(default_factory=MasjidAuditModel)

    # Flat backward-compatibility fields (prevents breaking any existing Flutter screen)
    name: Optional[str] = None
    country: Optional[str] = None
    address_lines: List[str] = Field(default_factory=list)
    full_address: Optional[str] = None
    location_label: Optional[str] = None
    district: Optional[str] = None
    village: Optional[str] = None
    fiqh: Optional[str] = "Sunni"
    latitude: Optional[float] = None
    longitude: Optional[float] = None
    timezone_offset_hours: Optional[float] = 5.5
    admin_uid: Optional[str] = None
    co_admins: List[str] = Field(default_factory=list)
    automation_config: Optional[dict] = None
    fajr_azan: Optional[str] = "-"
    fajr_jamaat: Optional[str] = "-"
    sunrise: Optional[str] = "-"
    zuhr_azan: Optional[str] = "-"
    zuhr_jamaat: Optional[str] = "-"
    asr_azan: Optional[str] = "-"
    asr_jamaat: Optional[str] = "-"
    maghrib_azan: Optional[str] = "-"
    maghrib_jamaat: Optional[str] = "-"
    isha_azan: Optional[str] = "-"
    isha_jamaat: Optional[str] = "-"
    jumma_khutbah: Optional[str] = "-"
    jumma_prayer: Optional[str] = "-"
    jumma_1st: Optional[str] = "-"
    jumma_2nd: Optional[str] = "-"
    jumma_3rd: Optional[str] = "-"
    eid_ul_fitr: Optional[str] = "-"
    eid_ul_adha: Optional[str] = "-"
    eid_enabled: Optional[bool] = False
    hijri_adjustment: Optional[int] = 0
    hijri_override: Optional[str] = None
    clear_hijri_override: Optional[bool] = False
    region_id: Optional[str] = "kashmir"
    created_at: Optional[datetime] = None
    updated_at: Optional[datetime] = None


# =========================================================
# ACCOUNT DELETION & REFUND REQUEST MODELS
# =========================================================

class AccountDeleteRequest(BaseModel):
    """Payload for initiating a 7-day grace period account deletion"""
    password: Optional[str] = Field(None, description="Current password for email/password accounts")
    reauth_token: Optional[str] = Field(None, description="Fresh ID token or re-authentication proof for OAuth/Google accounts")
    reason: Optional[str] = Field(None, max_length=500, description="Optional user reason for deleting account")
    feedback: Optional[str] = Field(None, max_length=2000, description="Optional user feedback")


class AccountCancelDeleteRequest(BaseModel):
    """Payload for cancelling a pending account deletion during 7-day grace period"""
    reason: Optional[str] = Field(None, max_length=500, description="Reason for cancelling deletion")


class RefundReasonEnum(str, Enum):
    """Standardized user refund reasons"""
    ACCIDENTAL_PURCHASE = "ACCIDENTAL_PURCHASE"
    DUPLICATE_CHARGE = "DUPLICATE_CHARGE"
    SERVICE_DEFECT = "SERVICE_DEFECT"
    NOT_SATISFIED = "NOT_SATISFIED"
    OTHER = "OTHER"


class RefundRequestCreate(BaseModel):
    """Payload for submitting a user-facing refund request"""
    transaction_id: str = Field(..., min_length=1, max_length=128, description="Reference transaction ID")
    reason: str = Field(..., min_length=2, max_length=100, description="Refund reason code or title")
    reason_details: Optional[str] = Field(None, max_length=2000, description="Detailed explanation of the issue")
    amount: Optional[float] = Field(None, gt=0, description="Requested refund amount (defaults to max refundable)")


class RefundRequestReview(BaseModel):
    """SuperAdmin review action on a refund request"""
    status: str = Field(..., description="Target status: 'under_review', 'approved', or 'rejected'")
    admin_notes: Optional[str] = Field(None, max_length=2000, description="Internal administrator notes")
    rejection_reason: Optional[str] = Field(None, max_length=1000, description="Reason communicated if rejected")


class RefundRequestProcess(BaseModel):
    """SuperAdmin execution payload for processing an approved refund"""
    amount: Optional[float] = Field(None, gt=0, description="Override amount if partial refund")
    reason: Optional[str] = Field("Customer refund request approved", max_length=500)
    admin_notes: Optional[str] = Field(None, max_length=2000)


# =========================================================
# HIJRI CALENDAR MODELS
# =========================================================

class HijriCorrectionRequest(BaseModel):
    '''Payload for submitting a bounded adjustment or time-scoped temporary correction'''
    masjid_id: str
    effective_from: Optional[str] = Field(None, description='ISO date YYYY-MM-DD from which correction is active')
    effective_to: Optional[str] = Field(None, description='ISO date YYYY-MM-DD until which correction is active')
    hijri_year: Optional[int] = Field(None, ge=1400, le=1600, description='Corrected Hijri year')
    hijri_month: Optional[int] = Field(None, ge=1, le=12, description='Corrected Hijri month (1-12)')
    hijri_day: Optional[int] = Field(None, ge=1, le=30, description='Corrected Hijri day (1-30)')
    hijri_adjustment: Optional[int] = Field(None, ge=-3, le=3, description='Persistent day adjustment (-3 to +3)')
    reason: Optional[str] = Field(None, max_length=200, description='Verification reason or moon sighting authority source')
    clear_correction: Optional[bool] = Field(False, description='Set true to clear any existing temporary correction')


class MasjidIdPayload(BaseModel):
    '''Standard single masjid_id payload'''
    masjid_id: str