import { selectServerObservation, type GameObservation } from '../../server-observation.js';
import { classifyHealth } from './health.js';
import { isProvisioning } from './provisioning.js';
import { restartSettling } from '../provisioning/restarts.js';
import { type ServerRow } from './servers.js';
import { telemetryReport, latestGameSubmission } from './status-evidence.js';

/** Shared snapshot for REST, status events, metrics, and other server-side readers. */
export function serverObservation(server: ServerRow) {
    let roster = null;
    try { roster = server.last_roster ? JSON.parse(server.last_roster) : null; } catch { /* unavailable */ }
    const rcon: GameObservation = { last_players: server.last_players, last_map: server.last_map,
        last_gametype: server.last_gametype, last_seen_at: server.last_seen_at, last_error: server.last_error, roster };
    const provisioning = isProvisioning(server.name);
    const state = restartSettling(server.name) ? 'restarting' : server.container_state;
    const ready = !provisioning && (!state || state === 'running');
    const health = provisioning ? 'provisioning' : classifyHealth(server.last_seen_at, server.last_error, state);
    return selectServerObservation({ ...server, ...rcon, rcon_status: rcon, container_state: state, health,
        status_source: null as 'telemetry' | 'rcon' | null,
        telemetry: telemetryReport(server.name) ?? undefined,
        telemetry_after: latestGameSubmission(server.name),
        last_error: ready ? server.last_error : null,
        replySnippet: ready ? server.last_reply_snippet : null,
        active_since: ready ? server.active_since : null, inactive_since: ready ? server.inactive_since : null,
        game_started_at: ready ? server.game_started_at : null, game_ended_at: ready ? server.game_ended_at : null
    }, undefined, Date.now());
}