import os
import sqlite3
import json
from datetime import datetime, timezone
from app.config import DB_PATH


def _conn():
    conn = sqlite3.connect(DB_PATH)
    conn.row_factory = sqlite3.Row
    return conn


def init_db():
    os.makedirs(os.path.dirname(os.path.abspath(DB_PATH)), exist_ok=True)
    conn = _conn()
    conn.executescript('''
        CREATE TABLE IF NOT EXISTS players (
            id                  INTEGER PRIMARY KEY,
            name                TEXT    NOT NULL,
            online              INTEGER NOT NULL DEFAULT 0,
            last_seen           TEXT,
            updating            INTEGER NOT NULL DEFAULT 0,
            registered          INTEGER NOT NULL DEFAULT 0,
            workspace_name      TEXT,
            player_type         TEXT,
            updated_at          TEXT    NOT NULL,
            last_pushed         TEXT,
            last_ip_address     TEXT,
            status_last_updated TEXT,
            screen_resolution   TEXT,
            hardware_version    TEXT,
            hostname            TEXT,
            eth0_ip             TEXT
        );

        CREATE TABLE IF NOT EXISTS logs (
            id         INTEGER PRIMARY KEY AUTOINCREMENT,
            timestamp  TEXT NOT NULL,
            event_type TEXT NOT NULL,
            message    TEXT NOT NULL,
            details    TEXT
        );

        CREATE INDEX IF NOT EXISTS idx_logs_ts ON logs(timestamp DESC);
    ''')
    # Migrate existing databases that predate the new columns
    new_cols = [
        ('last_pushed',         'TEXT'),
        ('last_ip_address',     'TEXT'),
        ('status_last_updated', 'TEXT'),
        ('screen_resolution',   'TEXT'),
        ('hardware_version',    'TEXT'),
        ('hostname',            'TEXT'),
        ('eth0_ip',             'TEXT'),
    ]
    for col, typ in new_cols:
        try:
            conn.execute(f'ALTER TABLE players ADD COLUMN {col} {typ}')
        except Exception:
            pass  # column already exists
    conn.commit()
    conn.close()


def upsert_player(p):
    state = p.get('state', {})
    workspace = p.get('workspace', {})
    ps = p.get('player_status') or {}
    res = ps.get('screen_resolution')
    eth0 = (ps.get('public_ip') or {}).get('eth0') or {}
    now = datetime.now(timezone.utc).isoformat()
    conn = _conn()
    conn.execute('''
        INSERT INTO players (id, name, online, last_seen, updating, registered,
                             workspace_name, player_type, updated_at,
                             last_pushed, last_ip_address, status_last_updated,
                             screen_resolution, hardware_version, hostname, eth0_ip)
        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
        ON CONFLICT(id) DO UPDATE SET
            name                = excluded.name,
            online              = excluded.online,
            last_seen           = excluded.last_seen,
            updating            = excluded.updating,
            registered          = excluded.registered,
            workspace_name      = excluded.workspace_name,
            player_type         = excluded.player_type,
            updated_at          = excluded.updated_at,
            last_pushed         = excluded.last_pushed,
            last_ip_address     = excluded.last_ip_address,
            status_last_updated = excluded.status_last_updated,
            screen_resolution   = excluded.screen_resolution,
            hardware_version    = excluded.hardware_version,
            hostname            = excluded.hostname,
            eth0_ip             = excluded.eth0_ip
    ''', (
        p['id'],
        p['name'],
        1 if state.get('online') else 0,
        state.get('last_seen'),
        1 if state.get('updating') else 0,
        1 if state.get('registered') else 0,
        workspace.get('name'),
        p.get('player_type'),
        now,
        p.get('last_pushed'),
        p.get('last_ip_address'),
        ps.get('status_last_updated'),
        f"{res[0]}x{res[1]}" if isinstance(res, list) and len(res) == 2 else None,
        ps.get('hardware_version'),
        ps.get('hostname'),
        eth0.get('ip_v4'),
    ))
    conn.commit()
    conn.close()


def get_all_players():
    conn = _conn()
    rows = conn.execute('SELECT * FROM players ORDER BY name').fetchall()
    conn.close()
    return [dict(r) for r in rows]


def get_player_counts():
    conn = _conn()
    total  = conn.execute('SELECT COUNT(*) FROM players').fetchone()[0]
    online = conn.execute('SELECT COUNT(*) FROM players WHERE online = 1').fetchone()[0]
    conn.close()
    return total, online


def add_log(event_type, message, details=None):
    now = datetime.now(timezone.utc).isoformat()
    conn = _conn()
    conn.execute(
        'INSERT INTO logs (timestamp, event_type, message, details) VALUES (?, ?, ?, ?)',
        (now, event_type, message, json.dumps(details) if details else None),
    )
    conn.commit()
    conn.close()


def get_recent_logs(limit=200):
    conn = _conn()
    rows = conn.execute('SELECT * FROM logs ORDER BY id DESC LIMIT ?', (limit,)).fetchall()
    conn.close()
    return [dict(r) for r in rows]