"""SQLite Datenbank-Setup und Zugriff."""
import aiosqlite
import logging
import os
from config import DB_PATH, DATA_DIR

logger = logging.getLogger("osint.database")

SCHEMA = """
CREATE TABLE IF NOT EXISTS organizations (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    name TEXT NOT NULL,
    slug TEXT UNIQUE NOT NULL,
    is_active INTEGER DEFAULT 1,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS licenses (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    organization_id INTEGER NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
    license_type TEXT NOT NULL DEFAULT 'trial',
    max_users INTEGER NOT NULL DEFAULT 5,
    valid_from TIMESTAMP NOT NULL,
    valid_until TIMESTAMP,
    status TEXT NOT NULL DEFAULT 'active',
    notes TEXT,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS users (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    email TEXT UNIQUE NOT NULL,
    username TEXT NOT NULL,
    password_hash TEXT,
    organization_id INTEGER NOT NULL REFERENCES organizations(id),
    role TEXT NOT NULL DEFAULT 'member',
    is_active INTEGER DEFAULT 1,
    last_login_at TIMESTAMP,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
CREATE TABLE IF NOT EXISTS magic_links (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    email TEXT NOT NULL,
    token TEXT UNIQUE NOT NULL,
    code TEXT NOT NULL,
    purpose TEXT NOT NULL DEFAULT 'login',
    user_id INTEGER REFERENCES users(id),
    is_used INTEGER DEFAULT 0,
    expires_at TIMESTAMP NOT NULL,
    ip_address TEXT,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- Hinweis: portal_admins wird von der Verwaltungs-App (Admin-Portal) genutzt, die dieselbe DB teilt.
CREATE TABLE IF NOT EXISTS portal_admins (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    username TEXT UNIQUE NOT NULL,
    password_hash TEXT NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS incidents (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    title TEXT NOT NULL,
    description TEXT,
    status TEXT DEFAULT 'active',
    type TEXT DEFAULT 'adhoc',
    refresh_mode TEXT DEFAULT 'manual',
    refresh_interval INTEGER DEFAULT 15,
    retention_days INTEGER DEFAULT 0,
    visibility TEXT DEFAULT 'public',
    summary TEXT,
    sources_json TEXT,
    international_sources INTEGER DEFAULT 1,
    category_labels TEXT,
    tenant_id INTEGER REFERENCES organizations(id),
    created_by INTEGER REFERENCES users(id),
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
CREATE TABLE IF NOT EXISTS articles (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    incident_id INTEGER REFERENCES incidents(id) ON DELETE CASCADE,
    headline TEXT NOT NULL,
    headline_de TEXT,
    source TEXT NOT NULL,
    source_url TEXT,
    content_original TEXT,
    content_de TEXT,
    language TEXT DEFAULT 'de',
    published_at TIMESTAMP,
    collected_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    verification_status TEXT DEFAULT 'unverified',
    tenant_id INTEGER REFERENCES organizations(id)
);
CREATE TABLE IF NOT EXISTS fact_checks (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    incident_id INTEGER REFERENCES incidents(id) ON DELETE CASCADE,
    claim TEXT NOT NULL,
    status TEXT DEFAULT 'developing',
    sources_count INTEGER DEFAULT 0,
    evidence TEXT,
    is_notification INTEGER DEFAULT 0,
    checked_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    tenant_id INTEGER REFERENCES organizations(id)
);

CREATE TABLE IF NOT EXISTS refresh_log (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    incident_id INTEGER REFERENCES incidents(id) ON DELETE CASCADE,
    started_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    completed_at TIMESTAMP,
    articles_found INTEGER DEFAULT 0,
    status TEXT DEFAULT 'running',
    tenant_id INTEGER REFERENCES organizations(id)
);

CREATE TABLE IF NOT EXISTS incident_snapshots (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    incident_id INTEGER REFERENCES incidents(id) ON DELETE CASCADE,
    summary TEXT,
    sources_json TEXT,
    article_count INTEGER DEFAULT 0,
    fact_check_count INTEGER DEFAULT 0,
    refresh_log_id INTEGER REFERENCES refresh_log(id),
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    tenant_id INTEGER REFERENCES organizations(id)
);

CREATE TABLE IF NOT EXISTS sources (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    name TEXT NOT NULL,
    url TEXT,
    domain TEXT,
    source_type TEXT NOT NULL DEFAULT 'rss_feed',
    category TEXT NOT NULL DEFAULT 'sonstige',
    status TEXT NOT NULL DEFAULT 'active',
    notes TEXT,
    added_by TEXT,
    article_count INTEGER DEFAULT 0,
    last_seen_at TIMESTAMP,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    tenant_id INTEGER REFERENCES organizations(id)
);

CREATE TABLE IF NOT EXISTS notifications (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    incident_id INTEGER REFERENCES incidents(id) ON DELETE CASCADE,
    type TEXT NOT NULL DEFAULT 'refresh_summary',
    title TEXT NOT NULL,
    text TEXT NOT NULL,
    icon TEXT DEFAULT 'info',
    is_read INTEGER DEFAULT 0,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    tenant_id INTEGER REFERENCES organizations(id)
);
CREATE INDEX IF NOT EXISTS idx_notifications_user_read ON notifications(user_id, is_read);

CREATE TABLE IF NOT EXISTS incident_subscriptions (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    incident_id INTEGER NOT NULL REFERENCES incidents(id) ON DELETE CASCADE,
    notify_email_summary INTEGER DEFAULT 0,
    notify_email_new_articles INTEGER DEFAULT 0,
    notify_email_status_change INTEGER DEFAULT 0,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    UNIQUE(user_id, incident_id)
);

CREATE TABLE IF NOT EXISTS article_locations (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    article_id INTEGER REFERENCES articles(id) ON DELETE CASCADE,
    incident_id INTEGER REFERENCES incidents(id) ON DELETE CASCADE,
    location_name TEXT NOT NULL,
    location_name_normalized TEXT,
    country_code TEXT,
    latitude REAL NOT NULL,
    longitude REAL NOT NULL,
    confidence REAL DEFAULT 0.0,
    source_text TEXT,
    tenant_id INTEGER REFERENCES organizations(id)
);
CREATE INDEX IF NOT EXISTS idx_article_locations_incident ON article_locations(incident_id);
CREATE INDEX IF NOT EXISTS idx_article_locations_article ON article_locations(article_id);


CREATE TABLE IF NOT EXISTS source_health_checks (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    source_id INTEGER NOT NULL REFERENCES sources(id) ON DELETE CASCADE,
    check_type TEXT NOT NULL,
    status TEXT NOT NULL,
    message TEXT,
    details TEXT,
    checked_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
CREATE INDEX IF NOT EXISTS idx_source_health_source ON source_health_checks(source_id);

CREATE TABLE IF NOT EXISTS source_suggestions (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    suggestion_type TEXT NOT NULL,
    title TEXT NOT NULL,
    description TEXT,
    source_id INTEGER REFERENCES sources(id) ON DELETE SET NULL,
    suggested_data TEXT,
    priority TEXT DEFAULT 'medium',
    status TEXT DEFAULT 'pending',
    reviewed_at TIMESTAMP,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
CREATE TABLE IF NOT EXISTS user_excluded_domains (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    domain TEXT NOT NULL,
    notes TEXT,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    UNIQUE(user_id, domain)
);
"""


async def get_db() -> aiosqlite.Connection:
    """Erstellt eine neue Datenbankverbindung."""
    os.makedirs(DATA_DIR, exist_ok=True)
    db = await aiosqlite.connect(DB_PATH)
    db.row_factory = aiosqlite.Row
    await db.execute("PRAGMA journal_mode=WAL")
    await db.execute("PRAGMA foreign_keys=ON")
    await db.execute("PRAGMA busy_timeout=5000")
    return db


async def init_db():
    """Initialisiert die Datenbank mit dem Schema."""
    db = await get_db()
    try:
        await db.executescript(SCHEMA)
        await db.commit()

        # --- Migrationen fuer bestehende Datenbanken ---

        # Incidents-Spalten pruefen
        cursor = await db.execute("PRAGMA table_info(incidents)")
        columns = [row[1] for row in await cursor.fetchall()]

        if "type" not in columns:
            await db.execute("ALTER TABLE incidents ADD COLUMN type TEXT DEFAULT 'adhoc'")
            await db.commit()

        if "sources_json" not in columns:
            await db.execute("ALTER TABLE incidents ADD COLUMN sources_json TEXT")
            await db.commit()

        if "international_sources" not in columns:
            await db.execute("ALTER TABLE incidents ADD COLUMN international_sources INTEGER DEFAULT 1")
            await db.commit()

        if "visibility" not in columns:
            await db.execute("ALTER TABLE incidents ADD COLUMN visibility TEXT DEFAULT 'public'")
            await db.commit()

        if "include_telegram" not in columns:
            await db.execute("ALTER TABLE incidents ADD COLUMN include_telegram INTEGER DEFAULT 0")
            await db.commit()
            logger.info("Migration: include_telegram zu incidents hinzugefuegt")

        if "telegram_categories" not in columns:
            await db.execute("ALTER TABLE incidents ADD COLUMN telegram_categories TEXT DEFAULT NULL")
            await db.commit()
            logger.info("Migration: telegram_categories zu incidents hinzugefuegt")

        if "category_labels" not in columns:
            await db.execute("ALTER TABLE incidents ADD COLUMN category_labels TEXT")
            await db.commit()
            logger.info("Migration: category_labels zu incidents hinzugefuegt")

        if "tenant_id" not in columns:
            await db.execute("ALTER TABLE incidents ADD COLUMN tenant_id INTEGER REFERENCES organizations(id)")
            await db.commit()
            logger.info("Migration: tenant_id zu incidents hinzugefuegt")

        # Migration: Token-Spalten fuer refresh_log
        cursor = await db.execute("PRAGMA table_info(refresh_log)")
        rl_columns = [row[1] for row in await cursor.fetchall()]
        if "input_tokens" not in rl_columns:
            await db.execute("ALTER TABLE refresh_log ADD COLUMN input_tokens INTEGER DEFAULT 0")
            await db.execute("ALTER TABLE refresh_log ADD COLUMN output_tokens INTEGER DEFAULT 0")
            await db.execute("ALTER TABLE refresh_log ADD COLUMN cache_creation_tokens INTEGER DEFAULT 0")
            await db.execute("ALTER TABLE refresh_log ADD COLUMN cache_read_tokens INTEGER DEFAULT 0")
            await db.execute("ALTER TABLE refresh_log ADD COLUMN total_cost_usd REAL DEFAULT 0.0")
            await db.execute("ALTER TABLE refresh_log ADD COLUMN api_calls INTEGER DEFAULT 0")
            await db.commit()

        if "trigger_type" not in rl_columns:
            await db.execute("ALTER TABLE refresh_log ADD COLUMN trigger_type TEXT DEFAULT 'manual'")
            await db.commit()

        if "retry_count" not in rl_columns:
            await db.execute("ALTER TABLE refresh_log ADD COLUMN retry_count INTEGER DEFAULT 0")
            await db.execute("ALTER TABLE refresh_log ADD COLUMN error_message TEXT")
            await db.commit()

        if "tenant_id" not in rl_columns:
            await db.execute("ALTER TABLE refresh_log ADD COLUMN tenant_id INTEGER REFERENCES organizations(id)")
            await db.commit()

        # Migration: notifications-Tabelle (fuer bestehende DBs)
        cursor = await db.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='notifications'")
        if not await cursor.fetchone():
            await db.executescript("""
                CREATE TABLE IF NOT EXISTS notifications (
                    id INTEGER PRIMARY KEY AUTOINCREMENT,
                    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
                    incident_id INTEGER REFERENCES incidents(id) ON DELETE CASCADE,
                    type TEXT NOT NULL DEFAULT 'refresh_summary',
                    title TEXT NOT NULL,
                    text TEXT NOT NULL,
                    icon TEXT DEFAULT 'info',
                    is_read INTEGER DEFAULT 0,
                    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
                    tenant_id INTEGER REFERENCES organizations(id)
                );
                CREATE INDEX IF NOT EXISTS idx_notifications_user_read ON notifications(user_id, is_read);
            """)
            await db.commit()

        # Migration: incident_subscriptions-Tabelle (fuer bestehende DBs)
        cursor = await db.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='incident_subscriptions'")
        if not await cursor.fetchone():
            await db.executescript("""
                CREATE TABLE IF NOT EXISTS incident_subscriptions (
                    id INTEGER PRIMARY KEY AUTOINCREMENT,
                    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
                    incident_id INTEGER NOT NULL REFERENCES incidents(id) ON DELETE CASCADE,
                    notify_email_summary INTEGER DEFAULT 0,
                    notify_email_new_articles INTEGER DEFAULT 0,
                    notify_email_status_change INTEGER DEFAULT 0,
                    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
                    UNIQUE(user_id, incident_id)
                );
            """)
            await db.commit()
            logger.info("Migration: incident_subscriptions-Tabelle erstellt")
        else:
            # Migration: Spalte umbenennen contradiction -> new_articles
            cursor = await db.execute("PRAGMA table_info(incident_subscriptions)")
            sub_columns = [row[1] for row in await cursor.fetchall()]
            if "notify_email_contradiction" in sub_columns:
                await db.execute("ALTER TABLE incident_subscriptions RENAME COLUMN notify_email_contradiction TO notify_email_new_articles")
                await db.commit()
                logger.info("Migration: notify_email_contradiction -> notify_email_new_articles umbenannt")

        # Migration: role-Spalte fuer users
        cursor = await db.execute("PRAGMA table_info(users)")
        user_columns = [row[1] for row in await cursor.fetchall()]
        if "role" not in user_columns:
            await db.execute("ALTER TABLE users ADD COLUMN role TEXT DEFAULT 'member'")
            await db.execute("UPDATE users SET role = 'org_admin'")
            await db.commit()
            logger.info("Migration: role-Spalte zu users hinzugefuegt")

        # Migration: email, organization_id, is_active, last_login_at fuer users
        if "email" not in user_columns:
            await db.execute("ALTER TABLE users ADD COLUMN email TEXT")
            await db.commit()
            logger.info("Migration: email zu users hinzugefuegt")

        if "organization_id" not in user_columns:
            await db.execute("ALTER TABLE users ADD COLUMN organization_id INTEGER REFERENCES organizations(id)")
            await db.commit()
            logger.info("Migration: organization_id zu users hinzugefuegt")

        # Index erst nach Spalten-Migration erstellen
        try:
            await db.execute("CREATE UNIQUE INDEX IF NOT EXISTS idx_users_org_username ON users(organization_id, username)")
            await db.commit()
        except Exception:
            pass  # Index existiert bereits oder Spalte fehlt noch

        if "is_active" not in user_columns:
            await db.execute("ALTER TABLE users ADD COLUMN is_active INTEGER DEFAULT 1")
            await db.commit()

        if "last_login_at" not in user_columns:
            await db.execute("ALTER TABLE users ADD COLUMN last_login_at TIMESTAMP")
            await db.commit()

        # Migration: tenant_id fuer articles
        cursor = await db.execute("PRAGMA table_info(articles)")
        art_columns = [row[1] for row in await cursor.fetchall()]
        if "tenant_id" not in art_columns:
            await db.execute("ALTER TABLE articles ADD COLUMN tenant_id INTEGER REFERENCES organizations(id)")
            await db.commit()

        # Migration: tenant_id fuer fact_checks
        cursor = await db.execute("PRAGMA table_info(fact_checks)")
        fc_columns = [row[1] for row in await cursor.fetchall()]
        if "tenant_id" not in fc_columns:
            await db.execute("ALTER TABLE fact_checks ADD COLUMN tenant_id INTEGER REFERENCES organizations(id)")
            await db.commit()

        # Migration: status_history fuer fact_checks (Faktencheck-Verlauf)
        if "status_history" not in fc_columns:
            await db.execute("ALTER TABLE fact_checks ADD COLUMN status_history TEXT DEFAULT '[]'")
            # Bestehende Eintraege initialisieren
            cursor2 = await db.execute("SELECT id, status, checked_at FROM fact_checks")
            for row2 in await cursor2.fetchall():
                import json as _json
                initial_history = _json.dumps([{"status": row2[1], "at": str(row2[2])}])
                await db.execute("UPDATE fact_checks SET status_history = ? WHERE id = ?", (initial_history, row2[0]))
            await db.commit()
            logger.info("Migration: status_history zu fact_checks hinzugefuegt")

        # Migration: category fuer article_locations (Marker-Klassifizierung)
        cursor = await db.execute("PRAGMA table_info(article_locations)")
        al_columns = [row[1] for row in await cursor.fetchall()]
        if "category" not in al_columns:
            await db.execute("ALTER TABLE article_locations ADD COLUMN category TEXT DEFAULT 'mentioned'")
            await db.commit()
            logger.info("Migration: category zu article_locations hinzugefuegt")

        # Migration: Alte Kategorie-Werte auf neue Keys umbenennen
        try:
            await db.execute(
                "UPDATE article_locations SET category = 'primary' WHERE category = 'target'"
            )
            await db.execute(
                "UPDATE article_locations SET category = 'secondary' WHERE category IN ('response', 'retaliation')"
            )
            await db.execute(
                "UPDATE article_locations SET category = 'tertiary' WHERE category IN ('actor', 'context')"
            )
            changed = db.total_changes
            await db.commit()
            if changed > 0:
                logger.info("Migration: article_locations Kategorien umbenannt (target->primary, response/retaliation->secondary, actor->tertiary)")
        except Exception:
            pass  # Bereits migriert oder keine Daten

        # Migration: tenant_id fuer incident_snapshots
        cursor = await db.execute("PRAGMA table_info(incident_snapshots)")
        snap_columns2 = [row[1] for row in await cursor.fetchall()]
        if "tenant_id" not in snap_columns2:
            await db.execute("ALTER TABLE incident_snapshots ADD COLUMN tenant_id INTEGER REFERENCES organizations(id)")
            await db.commit()

        # Migration: tenant_id fuer sources
        cursor = await db.execute("PRAGMA table_info(sources)")
        src_columns = [row[1] for row in await cursor.fetchall()]
        if "tenant_id" not in src_columns:
            await db.execute("ALTER TABLE sources ADD COLUMN tenant_id INTEGER REFERENCES organizations(id)")
            await db.commit()

        # Migration: tenant_id fuer notifications
        cursor = await db.execute("PRAGMA table_info(notifications)")
        notif_columns = [row[1] for row in await cursor.fetchall()]
        if "tenant_id" not in notif_columns:
            await db.execute("ALTER TABLE notifications ADD COLUMN tenant_id INTEGER REFERENCES organizations(id)")
            await db.commit()

        # Indexes erstellen (nach Spalten-Migrationen)
        for idx_sql in [
            "CREATE INDEX IF NOT EXISTS idx_incidents_tenant_status ON incidents(tenant_id, status)",
            "CREATE INDEX IF NOT EXISTS idx_articles_tenant_incident ON articles(tenant_id, incident_id)",
        ]:
            try:
                await db.execute(idx_sql)
                await db.commit()
            except Exception:
                pass

        # Migration: article_locations-Tabelle (fuer bestehende DBs)
        cursor = await db.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='article_locations'")
        if not await cursor.fetchone():
            await db.executescript("""
                CREATE TABLE IF NOT EXISTS article_locations (
                    id INTEGER PRIMARY KEY AUTOINCREMENT,
                    article_id INTEGER REFERENCES articles(id) ON DELETE CASCADE,
                    incident_id INTEGER REFERENCES incidents(id) ON DELETE CASCADE,
                    location_name TEXT NOT NULL,
                    location_name_normalized TEXT,
                    country_code TEXT,
                    latitude REAL NOT NULL,
                    longitude REAL NOT NULL,
                    confidence REAL DEFAULT 0.0,
                    source_text TEXT,
                    tenant_id INTEGER REFERENCES organizations(id)
                );
                CREATE INDEX IF NOT EXISTS idx_article_locations_incident ON article_locations(incident_id);
                CREATE INDEX IF NOT EXISTS idx_article_locations_article ON article_locations(article_id);
            """)
            await db.commit()
            logger.info("Migration: article_locations-Tabelle erstellt")

        # Verwaiste running-Eintraege beim Start als error markieren (aelter als 15 Min)
        await db.execute(
            """UPDATE refresh_log SET status = 'error', error_message = 'Verwaist beim Neustart',
               completed_at = CURRENT_TIMESTAMP
               WHERE status = 'running'
               AND started_at < datetime('now', '-15 minutes')"""
        )
        await db.commit()

        # Sources-Tabelle seeden (nur wenn leer)
        cursor = await db.execute("SELECT COUNT(*) as cnt FROM sources")
        row = await cursor.fetchone()
        if row["cnt"] == 0:
            await _seed_sources(db)

    finally:
        await db.close()


async def _seed_sources(db: aiosqlite.Connection):
    """Befuellt die sources-Tabelle aus der config.py-Konfiguration."""
    from config import RSS_FEEDS, EXCLUDED_SOURCES

    category_map = {
        "tagesschau": "oeffentlich-rechtlich",
        "ZDF heute": "oeffentlich-rechtlich",
        "Deutsche Welle": "oeffentlich-rechtlich",
        "Spiegel": "qualitaetszeitung",
        "Zeit": "qualitaetszeitung",
        "FAZ": "qualitaetszeitung",
        "Süddeutsche": "qualitaetszeitung",
        "NZZ": "qualitaetszeitung",
        "Reuters": "nachrichtenagentur",
        "AP News": "nachrichtenagentur",
        "BBC World": "international",
        "Al Jazeera": "international",
        "France24": "international",
        "BMI": "behoerde",
        "Europol": "behoerde",
    }

    for _rss_category, feeds in RSS_FEEDS.items():
        for feed in feeds:
            name = feed["name"]
            url = feed["url"]
            try:
                from urllib.parse import urlparse
                domain = urlparse(url).netloc.lower().replace("www.", "")
            except Exception:
                domain = ""

            category = category_map.get(name, "sonstige")
            await db.execute(
                """INSERT INTO sources (name, url, domain, source_type, category, status, added_by, tenant_id)
                   VALUES (?, ?, ?, 'rss_feed', ?, 'active', 'system', NULL)""",
                (name, url, domain, category),
            )

    for excl in EXCLUDED_SOURCES:
        await db.execute(
            """INSERT INTO sources (name, domain, source_type, category, status, added_by, tenant_id)
               VALUES (?, ?, 'excluded', 'sonstige', 'active', 'system', NULL)""",
            (excl, excl),
        )

    await db.commit()
    await refresh_source_counts(db)

    logger.info(f"Sources-Tabelle geseeded: {len(RSS_FEEDS.get('deutsch', []))+len(RSS_FEEDS.get('international', []))+len(RSS_FEEDS.get('behoerden', []))} RSS-Feeds, {len(EXCLUDED_SOURCES)} ausgeschlossene Quellen")


async def refresh_source_counts(db: aiosqlite.Connection):
    """Berechnet Artikelzaehler und last_seen_at fuer alle Quellen neu."""
    cursor = await db.execute("SELECT id, name, domain FROM sources WHERE source_type != 'excluded'")
    sources = await cursor.fetchall()

    for source in sources:
        sid = source["id"]
        name = source["name"]
        domain = source["domain"] or ""

        if domain:
            cursor = await db.execute(
                """SELECT COUNT(*) as cnt, MAX(collected_at) as last_seen
                   FROM articles WHERE source = ? OR source_url LIKE ?""",
                (name, f"%{domain}%"),
            )
        else:
            cursor = await db.execute(
                "SELECT COUNT(*) as cnt, MAX(collected_at) as last_seen FROM articles WHERE source = ?",
                (name,),
            )
        row = await cursor.fetchone()
        await db.execute(
            "UPDATE sources SET article_count = ?, last_seen_at = ? WHERE id = ?",
            (row["cnt"], row["last_seen"], sid),
        )

    await db.commit()


async def db_dependency():
    """FastAPI Dependency fuer Datenbankverbindungen."""
    db = await get_db()
    try:
        yield db
    finally:
        await db.close()