"""
Landvex Admin Backend - Unified Models
Includes: Content, quiXzoom, Economy, HR, Aid Intelligence
"""
from sqlalchemy import Column, Integer, String, Float, DateTime, Boolean, Text, JSON, ForeignKey, Enum, Numeric
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import relationship
from datetime import datetime
import enum

Base = declarative_base()

# ─── USER & AUTH ──────────────────────────────────────────────────────────────

class UserRole(str, enum.Enum):
    SUPER_ADMIN = "super_admin"
    ADMIN = "admin"
    MANAGER = "manager"
    EDITOR = "editor"
    VIEWER = "viewer"
    ANALYST = "analyst"
    QUIXZOOM_MANAGER = "quixzoom_manager"
    ECONOMY_MANAGER = "economy_manager"
    HR_MANAGER = "hr_manager"
    AID_MANAGER = "aid_manager"

class UserStatus(str, enum.Enum):
    ACTIVE = "active"
    INACTIVE = "inactive"
    SUSPENDED = "suspended"

class TenantType(str, enum.Enum):
    ENTERPRISE = "enterprise"
    SMALL_BUSINESS = "small_business"
    INDIVIDUAL = "individual"
    MUNICIPALITY = "municipality"
    GOVERNMENT = "government"
    NGO = "ngo"

class TenantStatus(str, enum.Enum):
    ACTIVE = "active"
    INACTIVE = "inactive"
    SUSPENDED = "suspended"
    PENDING = "pending"

class Tenant(Base):
    __tablename__ = "tenants"
    
    id = Column(Integer, primary_key=True, index=True)
    tenant_id = Column(String(50), unique=True, nullable=False)
    name = Column(String(255), nullable=False)
    tenant_type = Column(Enum(TenantType), default=TenantType.ENTERPRISE)
    status = Column(Enum(TenantStatus), default=TenantStatus.ACTIVE)
    settings = Column(JSON)
    created_at = Column(DateTime, default=datetime.utcnow)

class Invitation(Base):
    __tablename__ = "invitations"
    
    id = Column(Integer, primary_key=True, index=True)
    invitation_id = Column(String(50), unique=True, nullable=False)
    email = Column(String(255), nullable=False)
    role = Column(Enum(UserRole), default=UserRole.VIEWER)
    tenant_id = Column(Integer, ForeignKey("tenants.id"))
    invited_by = Column(Integer, ForeignKey("users.id"))
    status = Column(String(50), default="pending")  # pending, accepted, expired
    expires_at = Column(DateTime)
    created_at = Column(DateTime, default=datetime.utcnow)

class AuditAction(str, enum.Enum):
    CREATE = "create"
    UPDATE = "update"
    DELETE = "delete"
    LOGIN = "login"
    LOGOUT = "logout"
    INVITE = "invite"
    ACCEPT = "accept"

class AuditLog(Base):
    __tablename__ = "audit_logs"
    
    id = Column(Integer, primary_key=True, index=True)
    action = Column(Enum(AuditAction), nullable=False)
    entity_type = Column(String(100))  # user, tenant, invitation, etc.
    entity_id = Column(String(100))
    user_id = Column(Integer, ForeignKey("users.id"))
    tenant_id = Column(Integer, ForeignKey("tenants.id"))
    details = Column(JSON)
    ip_address = Column(String(50))
    user_agent = Column(String(500))
    created_at = Column(DateTime, default=datetime.utcnow)

class User(Base):
    __tablename__ = "users"
    
    id = Column(Integer, primary_key=True, index=True)
    email = Column(String(255), unique=True, index=True, nullable=False)
    hashed_password = Column(String(255), nullable=False)
    full_name = Column(String(255))
    role = Column(Enum(UserRole), default=UserRole.VIEWER)
    tenant_id = Column(Integer, ForeignKey("tenants.id"))
    status = Column(Enum(UserStatus), default=UserStatus.ACTIVE)
    is_active = Column(Boolean, default=True)
    created_at = Column(DateTime, default=datetime.utcnow)
    last_login = Column(DateTime)

# ─── CONTENT MODULE ───────────────────────────────────────────────────────────

class ArticleStatus(str, enum.Enum):
    DRAFT = "draft"
    REVIEW = "review"
    PUBLISHED = "published"
    ARCHIVED = "archived"

class Article(Base):
    __tablename__ = "articles"
    
    id = Column(Integer, primary_key=True, index=True)
    title = Column(String(500), nullable=False)
    slug = Column(String(500), unique=True, index=True, nullable=False)
    content = Column(Text)
    excerpt = Column(String(1000))
    author_id = Column(Integer, ForeignKey("users.id"))
    status = Column(Enum(ArticleStatus), default=ArticleStatus.DRAFT)
    seo_title = Column(String(70))
    seo_description = Column(String(160))
    keywords = Column(JSON)
    published_at = Column(DateTime)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
    
    author = relationship("User")

class SEOMetadata(Base):
    __tablename__ = "seo_metadata"
    
    id = Column(Integer, primary_key=True, index=True)
    page_path = Column(String(500), unique=True, nullable=False)
    title = Column(String(70))
    description = Column(String(160))
    canonical_url = Column(String(500))
    og_image = Column(String(500))
    schema_markup = Column(JSON)
    last_audit = Column(DateTime)
    audit_score = Column(Integer)

# ─── QUIXZOOM MODULE ──────────────────────────────────────────────────────────

class MissionStatus(str, enum.Enum):
    DRAFT = "draft"
    PENDING = "pending"
    ACTIVE = "active"
    PAUSED = "paused"
    COMPLETED = "completed"
    CANCELLED = "cancelled"

class Mission(Base):
    __tablename__ = "missions"
    
    id = Column(Integer, primary_key=True, index=True)
    mission_id = Column(String(50), unique=True, nullable=False)
    title = Column(String(500), nullable=False)
    description = Column(Text)
    city = Column(String(255))
    country = Column(String(255))
    location = Column(JSON)
    reward_amount = Column(Numeric(10, 2))
    reward_currency = Column(String(3), default="SEK")
    status = Column(Enum(MissionStatus), default=MissionStatus.DRAFT)
    requirements = Column(JSON)
    start_date = Column(DateTime)
    end_date = Column(DateTime)
    max_submissions = Column(Integer)
    created_by = Column(Integer, ForeignKey("users.id"))
    created_at = Column(DateTime, default=datetime.utcnow)

class Contributor(Base):
    __tablename__ = "contributors"
    
    id = Column(Integer, primary_key=True, index=True)
    contributor_id = Column(String(50), unique=True, nullable=False)
    email = Column(String(255), unique=True)
    full_name = Column(String(255))
    phone = Column(String(50))
    country = Column(String(255))
    city = Column(String(255))
    reputation_score = Column(Integer, default=0)
    total_earnings = Column(Numeric(10, 2), default=0)
    total_submissions = Column(Integer, default=0)
    verified = Column(Boolean, default=False)
    status = Column(String(50), default="active")
    created_at = Column(DateTime, default=datetime.utcnow)

class Submission(Base):
    __tablename__ = "submissions"
    
    id = Column(Integer, primary_key=True, index=True)
    submission_id = Column(String(50), unique=True, nullable=False)
    mission_id = Column(Integer, ForeignKey("missions.id"))
    contributor_id = Column(Integer, ForeignKey("contributors.id"))
    status = Column(String(50), default="pending")
    media_urls = Column(JSON)
    location = Column(JSON)
    ai_score = Column(Float)
    reviewer_notes = Column(Text)
    submitted_at = Column(DateTime, default=datetime.utcnow)
    reviewed_at = Column(DateTime)
    reviewed_by = Column(Integer, ForeignKey("users.id"))

# ─── ECONOMY MODULE ───────────────────────────────────────────────────────────

class AccountType(str, enum.Enum):
    ASSET = "asset"
    LIABILITY = "liability"
    EQUITY = "equity"
    REVENUE = "revenue"
    EXPENSE = "expense"

class Account(Base):
    __tablename__ = "accounts"
    
    id = Column(Integer, primary_key=True, index=True)
    account_number = Column(String(20), unique=True, nullable=False)
    name = Column(String(255), nullable=False)
    account_type = Column(Enum(AccountType), nullable=False)
    parent_id = Column(Integer, ForeignKey("accounts.id"))
    balance = Column(Numeric(12, 2), default=0)
    currency = Column(String(3), default="SEK")
    description = Column(Text)
    is_active = Column(Boolean, default=True)
    
    parent = relationship("Account", remote_side=[id])

class Transaction(Base):
    __tablename__ = "transactions"
    
    id = Column(Integer, primary_key=True, index=True)
    transaction_id = Column(String(50), unique=True, nullable=False)
    date = Column(DateTime, nullable=False)
    description = Column(Text)
    reference = Column(String(255))
    amount = Column(Numeric(12, 2), nullable=False)
    debit_account_id = Column(Integer, ForeignKey("accounts.id"))
    credit_account_id = Column(Integer, ForeignKey("accounts.id"))
    status = Column(String(50), default="posted")
    created_by = Column(Integer, ForeignKey("users.id"))
    created_at = Column(DateTime, default=datetime.utcnow)

class BankAccount(Base):
    __tablename__ = "bank_accounts"
    
    id = Column(Integer, primary_key=True, index=True)
    bank_name = Column(String(255), nullable=False)
    account_name = Column(String(255))
    account_number = Column(String(100))
    iban = Column(String(100))
    bic = Column(String(20))
    currency = Column(String(3), default="SEK")
    current_balance = Column(Numeric(12, 2), default=0)
    account_type = Column(String(50))
    is_active = Column(Boolean, default=True)

# ─── HR MODULE ────────────────────────────────────────────────────────────────

class EmployeeStatus(str, enum.Enum):
    ACTIVE = "active"
    ON_LEAVE = "on_leave"
    TERMINATED = "terminated"
    CONTRACT = "contract"

class Employee(Base):
    __tablename__ = "employees"
    
    id = Column(Integer, primary_key=True, index=True)
    employee_id = Column(String(50), unique=True, nullable=False)
    first_name = Column(String(255), nullable=False)
    last_name = Column(String(255), nullable=False)
    email = Column(String(255), unique=True)
    phone = Column(String(50))
    department = Column(String(255))
    position = Column(String(255))
    start_date = Column(DateTime)
    end_date = Column(DateTime)
    salary = Column(Numeric(10, 2))
    salary_currency = Column(String(3), default="SEK")
    status = Column(Enum(EmployeeStatus), default=EmployeeStatus.ACTIVE)
    manager_id = Column(Integer, ForeignKey("employees.id"))
    created_at = Column(DateTime, default=datetime.utcnow)

class Contractor(Base):
    __tablename__ = "contractors"
    
    id = Column(Integer, primary_key=True, index=True)
    contractor_id = Column(String(50), unique=True, nullable=False)
    company_name = Column(String(255))
    contact_name = Column(String(255))
    email = Column(String(255))
    phone = Column(String(50))
    services = Column(JSON)
    hourly_rate = Column(Numeric(10, 2))
    currency = Column(String(3), default="SEK")
    contract_start = Column(DateTime)
    contract_end = Column(DateTime)
    status = Column(String(50), default="active")

# ─── AID INTELLIGENCE MODULE ─────────────────────────────────────────────────

class AidProjectType(str, enum.Enum):
    SCHOOL = "school"
    HOSPITAL = "hospital"
    ROAD = "road"
    BRIDGE = "bridge"
    WATER = "water"
    POWER = "power"
    AGRICULTURE = "agriculture"
    RENEWABLE = "renewable"
    HOUSING = "housing"
    SANITATION = "sanitation"
    DIGITAL = "digital"
    ENVIRONMENTAL = "environmental"
    EMERGENCY = "emergency"
    FOOD = "food"
    EDUCATION = "education"
    HEALTHCARE = "healthcare"
    MICROFINANCE = "microfinance"
    WOMEN_EMPOWERMENT = "women_empowerment"
    YOUTH_EMPLOYMENT = "youth_employment"

class AidProjectStatus(str, enum.Enum):
    PLANNED = "planned"
    ACTIVE = "active"
    COMPLETED = "completed"
    DELAYED = "delayed"
    ABANDONED = "abandoned"
    UNDER_MAINTENANCE = "under_maintenance"

class AidProject(Base):
    __tablename__ = "aid_projects"
    
    id = Column(Integer, primary_key=True, index=True)
    project_id = Column(String(50), unique=True, nullable=False)
    name = Column(String(500), nullable=False)
    description = Column(Text)
    country = Column(String(255), nullable=False)
    region = Column(String(255))
    district = Column(String(255))
    project_type = Column(Enum(AidProjectType), nullable=False)
    status = Column(Enum(AidProjectStatus), default=AidProjectStatus.PLANNED)
    funding_agency = Column(String(255))
    implementing_partner = Column(String(255))
    budget_usd = Column(Numeric(12, 2))
    start_date = Column(DateTime)
    expected_completion = Column(DateTime)
    actual_completion = Column(DateTime)
    location = Column(JSON)
    aii_score = Column(Integer)
    confidence = Column(Integer)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

class AidObservation(Base):
    __tablename__ = "aid_observations"
    
    id = Column(Integer, primary_key=True, index=True)
    observation_id = Column(String(50), unique=True, nullable=False)
    project_id = Column(Integer, ForeignKey("aid_projects.id"))
    observation_type = Column(String(50), nullable=False)
    date = Column(DateTime, nullable=False)
    contributor_id = Column(String(100))
    location = Column(JSON)
    media_urls = Column(JSON)
    ai_analysis = Column(JSON)
    confidence = Column(Integer)
    verified = Column(Boolean, default=False)
    created_at = Column(DateTime, default=datetime.utcnow)

class AidAlert(Base):
    __tablename__ = "aid_alerts"
    
    id = Column(Integer, primary_key=True, index=True)
    alert_id = Column(String(50), unique=True, nullable=False)
    severity = Column(String(20), nullable=False)
    alert_type = Column(String(100), nullable=False)
    project_id = Column(Integer, ForeignKey("aid_projects.id"))
    description = Column(Text)
    detected_at = Column(DateTime, default=datetime.utcnow)
    confidence = Column(Integer)
    status = Column(String(50), default="open")
    resolved_at = Column(DateTime)
    resolved_by = Column(Integer, ForeignKey("users.id"))

# ─── SYSTEM HEALTH ────────────────────────────────────────────────────────────

class ServiceHealth(Base):
    __tablename__ = "service_health"
    
    id = Column(Integer, primary_key=True, index=True)
    service_name = Column(String(255), nullable=False)
    service_url = Column(String(500))
    status = Column(String(50), default="unknown")
    last_check = Column(DateTime, default=datetime.utcnow)
    response_time_ms = Column(Integer)
    error_rate = Column(Float)
    uptime_percentage = Column(Float)