"""Flask CLI commands."""

import click
from flask.cli import with_appcontext


@click.group('db-utils')
def db_cli():
    """Database utility commands."""
    pass


@db_cli.command('create-all')
@with_appcontext
def create_all():
    """Create all database tables."""
    from shopdb.extensions import db

    db.create_all()
    click.echo(click.style("All tables created.", fg='green'))


@db_cli.command('drop-all')
@click.confirmation_option(prompt='This will delete ALL data. Are you sure?')
@with_appcontext
def drop_all():
    """Drop all database tables."""
    from shopdb.extensions import db

    db.drop_all()
    click.echo(click.style("All tables dropped.", fg='yellow'))


@click.group('seed')
def seed_cli():
    """Database seeding commands."""
    pass


@seed_cli.command('reference-data')
@with_appcontext
def seed_reference_data():
    """Seed reference data (machine types, statuses, etc.)."""
    from shopdb.extensions import db
    from shopdb.core.models import MachineType, MachineStatus, OperatingSystem
    from shopdb.core.models.relationship import RelationshipType

    # Machine types
    machine_types = [
        {'machinetype': 'CNC Mill', 'category': 'Equipment', 'description': 'CNC Milling Machine'},
        {'machinetype': 'CNC Lathe', 'category': 'Equipment', 'description': 'CNC Lathe'},
        {'machinetype': 'CMM', 'category': 'Equipment', 'description': 'Coordinate Measuring Machine'},
        {'machinetype': 'EDM', 'category': 'Equipment', 'description': 'Electrical Discharge Machine'},
        {'machinetype': 'Grinder', 'category': 'Equipment', 'description': 'Grinding Machine'},
        {'machinetype': 'Inspection Station', 'category': 'Equipment', 'description': 'Inspection Station'},
        {'machinetype': 'Desktop PC', 'category': 'PC', 'description': 'Desktop Computer'},
        {'machinetype': 'Laptop', 'category': 'PC', 'description': 'Laptop Computer'},
        {'machinetype': 'Shopfloor PC', 'category': 'PC', 'description': 'Shopfloor Computer'},
        {'machinetype': 'Server', 'category': 'Network', 'description': 'Server'},
        {'machinetype': 'Switch', 'category': 'Network', 'description': 'Network Switch'},
        {'machinetype': 'Access Point', 'category': 'Network', 'description': 'Wireless Access Point'},
    ]

    for mt_data in machine_types:
        existing = MachineType.query.filter_by(machinetype=mt_data['machinetype']).first()
        if not existing:
            mt = MachineType(**mt_data)
            db.session.add(mt)

    # Machine statuses
    statuses = [
        {'status': 'In Use', 'description': 'Currently in use', 'color': '#28a745'},
        {'status': 'Spare', 'description': 'Available as spare', 'color': '#17a2b8'},
        {'status': 'Retired', 'description': 'No longer in use', 'color': '#6c757d'},
        {'status': 'In Repair', 'description': 'Currently being repaired', 'color': '#ffc107'},
        {'status': 'Pending', 'description': 'Pending installation', 'color': '#007bff'},
    ]

    for s_data in statuses:
        existing = MachineStatus.query.filter_by(status=s_data['status']).first()
        if not existing:
            s = MachineStatus(**s_data)
            db.session.add(s)

    # Operating systems
    os_list = [
        {'osname': 'Windows 10', 'osversion': '10.0'},
        {'osname': 'Windows 11', 'osversion': '11.0'},
        {'osname': 'Windows Server 2019', 'osversion': '2019'},
        {'osname': 'Windows Server 2022', 'osversion': '2022'},
        {'osname': 'Linux', 'osversion': 'Various'},
    ]

    for os_data in os_list:
        existing = OperatingSystem.query.filter_by(osname=os_data['osname']).first()
        if not existing:
            os_obj = OperatingSystem(**os_data)
            db.session.add(os_obj)

    # Connection types (pre-1.0 legacy; kept for backward compat with
    # existing relationship rows. New ADR-001 code reasons about the three
    # canonical types below via free-text label.)
    connection_types = [
        {'relationshiptype': 'Serial Cable', 'description': 'RS-232 or similar serial connection'},
        {'relationshiptype': 'Direct Ethernet', 'description': 'Direct network cable (airgapped)'},
        {'relationshiptype': 'USB', 'description': 'USB connection'},
        {'relationshiptype': 'WiFi', 'description': 'Wireless network connection'},
        {'relationshiptype': 'Dualpath', 'description': 'Redundant/failover network path'},
    ]

    for ct_data in connection_types:
        existing = RelationshipType.query.filter_by(relationshiptype=ct_data['relationshiptype']).first()
        if not existing:
            ct = RelationshipType(**ct_data)
            db.session.add(ct)

    # ADR-001 canonical relationship types. Created first without propagation
    # FKs, then patched with propagatesthroughid since `controls` points at
    # `partof` (same table). All three are idempotent.
    adr_types = [
        {'relationshiptype': 'partof', 'description': 'Composition / sub-assembly (ADR-001)'},
        {'relationshiptype': 'controls', 'description': 'Operational authority over another asset (ADR-001)'},
        {'relationshiptype': 'connectedto', 'description': 'Network or data link without authority (ADR-001)'},
    ]
    for at in adr_types:
        existing = RelationshipType.query.filter_by(relationshiptype=at['relationshiptype']).first()
        if not existing:
            db.session.add(RelationshipType(**at))
    db.session.flush()

    # Wire `controls` -> `partof` propagation rail. partof + connectedto stay
    # null (no propagation).
    partof = RelationshipType.query.filter_by(relationshiptype='partof').first()
    controls = RelationshipType.query.filter_by(relationshiptype='controls').first()
    if partof and controls and controls.propagatesthroughid != partof.relationshiptypeid:
        controls.propagatesthroughid = partof.relationshiptypeid

    db.session.commit()
    click.echo(click.style("Reference data seeded.", fg='green'))


@seed_cli.command('test-user')
@with_appcontext
def seed_test_user():
    """Create a test admin user."""
    from shopdb.extensions import db
    from shopdb.core.models import User, Role
    from werkzeug.security import generate_password_hash

    # Create admin role if not exists
    admin_role = Role.query.filter_by(rolename='admin').first()
    if not admin_role:
        admin_role = Role(rolename='admin', description='Administrator')
        db.session.add(admin_role)

    # Create test user
    test_user = User.query.filter_by(username='admin').first()
    if not test_user:
        test_user = User(
            username='admin',
            email='admin@localhost',
            passwordhash=generate_password_hash('admin123'),
            isactive=True
        )
        test_user.roles.append(admin_role)
        db.session.add(test_user)
        db.session.commit()
        click.echo(click.style("Test user created: admin / admin123", fg='green'))
    else:
        click.echo(click.style("Test user already exists", fg='yellow'))


@seed_cli.command('permissions')
@with_appcontext
def seed_permissions():
    """Seed predefined permissions."""
    from shopdb.extensions import db
    from shopdb.core.models import Permission

    created = Permission.seed()
    db.session.commit()
    click.echo(click.style(f"{created} permissions created.", fg='green'))


@seed_cli.command('settings')
@with_appcontext
def seed_settings():
    """Seed default system settings."""
    from shopdb.extensions import db
    from shopdb.core.models import Setting

    defaults = [
        # Zabbix integration
        {
            'key': 'zabbix_enabled',
            'value': 'false',
            'valuetype': 'boolean',
            'category': 'integrations',
            'description': 'Enable Zabbix integration for printer supply monitoring'
        },
        {
            'key': 'zabbix_url',
            'value': '',
            'valuetype': 'string',
            'category': 'integrations',
            'description': 'Zabbix API URL (e.g., http://zabbix.example.com:8080)'
        },
        {
            'key': 'zabbix_token',
            'value': '',
            'valuetype': 'string',
            'category': 'integrations',
            'description': 'Zabbix API authentication token'
        },
        # Email/SMTP settings
        {
            'key': 'smtp_enabled',
            'value': 'false',
            'valuetype': 'boolean',
            'category': 'email',
            'description': 'Enable email notifications and alerts'
        },
        {
            'key': 'smtp_host',
            'value': '',
            'valuetype': 'string',
            'category': 'email',
            'description': 'SMTP server hostname'
        },
        {
            'key': 'smtp_port',
            'value': '587',
            'valuetype': 'integer',
            'category': 'email',
            'description': 'SMTP server port (usually 587 for TLS, 465 for SSL, 25 for unencrypted)'
        },
        {
            'key': 'smtp_username',
            'value': '',
            'valuetype': 'string',
            'category': 'email',
            'description': 'SMTP authentication username'
        },
        {
            'key': 'smtp_password',
            'value': '',
            'valuetype': 'string',
            'category': 'email',
            'description': 'SMTP authentication password'
        },
        {
            'key': 'smtp_use_tls',
            'value': 'true',
            'valuetype': 'boolean',
            'category': 'email',
            'description': 'Use TLS encryption for SMTP connection'
        },
        {
            'key': 'smtp_from_address',
            'value': '',
            'valuetype': 'string',
            'category': 'email',
            'description': 'From address for outgoing emails'
        },
        {
            'key': 'smtp_from_name',
            'value': 'ShopDB',
            'valuetype': 'string',
            'category': 'email',
            'description': 'From name for outgoing emails'
        },
        {
            'key': 'alert_recipients',
            'value': '',
            'valuetype': 'string',
            'category': 'email',
            'description': 'Default email recipients for alerts (comma-separated)'
        },
        # Audit log settings
        {
            'key': 'audit_retention_days',
            'value': '90',
            'valuetype': 'integer',
            'category': 'audit',
            'description': 'Number of days to retain audit logs (0 = keep forever)'
        },
        # Authentication settings
        {
            'key': 'saml_enabled',
            'value': 'false',
            'valuetype': 'boolean',
            'category': 'auth',
            'description': 'Enable SAML SSO authentication'
        },
        {
            'key': 'saml_idp_metadata_url',
            'value': '',
            'valuetype': 'string',
            'category': 'auth',
            'description': 'SAML Identity Provider metadata URL'
        },
        {
            'key': 'saml_entity_id',
            'value': '',
            'valuetype': 'string',
            'category': 'auth',
            'description': 'SAML Service Provider entity ID (e.g., https://shopdb.example.com)'
        },
        {
            'key': 'saml_acs_url',
            'value': '',
            'valuetype': 'string',
            'category': 'auth',
            'description': 'SAML Assertion Consumer Service URL'
        },
        {
            'key': 'saml_allow_local_login',
            'value': 'true',
            'valuetype': 'boolean',
            'category': 'auth',
            'description': 'Allow local username/password login when SAML is enabled'
        },
        {
            'key': 'saml_auto_create_users',
            'value': 'true',
            'valuetype': 'boolean',
            'category': 'auth',
            'description': 'Automatically create users on first SAML login'
        },
        {
            'key': 'saml_admin_group',
            'value': '',
            'valuetype': 'string',
            'category': 'auth',
            'description': 'SAML group name that grants admin role'
        },
    ]

    created = 0
    for d in defaults:
        if not Setting.query.filter_by(key=d['key']).first():
            setting = Setting(**d)
            db.session.add(setting)
            created += 1

    db.session.commit()
    click.echo(click.style(f"{created} default settings created.", fg='green'))
