import { migrateLegacySchema, installLifecycleIndexes } from './legacy.js';
import { migrateNativeInstances } from '../backends/schema.js';
import { migrateServerKeys } from './server-keys.js';
import { ensureAutoscalingSchema } from '../autoscaling/schema.js';
import { ensureRebalancingSchema } from '../rebalancing/schema.js';
import { migrateFileBlobs } from './file-blobs.js';
import { installPerformanceIndexes } from './performance-indexes.js';
import {
    installMetricsMatchRevisions,
    installMetricsPlayerRevisions,
    installMetricsPolicyRevisions,
    installMetricsProvisioningRevisions,
    installReportRevisions
} from '../reports/revisions.js';
import { enableIncrementalVacuum, retentionClocks } from './retention-clocks.js';
import { migrateHostSchema } from '../hosts/schema.js';
import {
    migrateAuthSchema,
    migrateRememberedSessions,
    migrateSuperViewerRole
} from '../auth/schema.js';
import { migrateGameFileSchema } from '../game-files/schema.js';
import { migrateLeaderboardReports } from './leaderboard-reports.js';
import { migratePlayerScoreTotal } from './player-score-total.js';
import { migrateBank } from './bank.js';
import { migrateBankCredentials } from './bank-credentials.js';
import { migrateTemperatures } from '../hosts/temperatures.js';
import type { Migration } from './migration-runner.js';

// Append only: never renumber entries or change an applied migration to add an
// upgrade. These initial steps bridge every historical, unversioned database;
// their old sentinels are compatibility inputs, not the migration ledger.
export const migrations: readonly Migration[] = [
    {
        version: 1,
        name: 'legacy controller schema and backfills',
        mode: 'foreign-keys-off',
        run: migrateLegacySchema
    },
    {
        version: 2,
        name: 'native instances and file plans',
        mode: 'foreign-keys-off',
        run: migrateNativeInstances
    },
    { version: 3, name: 'per-game server key pools', run: migrateServerKeys },
    { version: 4, name: 'autoscaling', run: ensureAutoscalingSchema },
    { version: 5, name: 'rebalancing', run: ensureRebalancingSchema },
    // Native file plans are stripped before artifact bodies are moved to blobs.
    { version: 6, name: 'shared file blobs', run: migrateFileBlobs },
    {
        version: 7,
        name: 'query indexes and report revisions',
        run: (handle) => {
            installLifecycleIndexes(handle);
            installPerformanceIndexes(handle);
            installReportRevisions(handle);
        }
    },
    {
        version: 8,
        name: 'retention clocks and indexes',
        run: (handle) =>
            retentionClocks(handle, {
                deployments: ['started_at', 'finished_at'],
                server_deployments: ['started_at', 'finished_at'],
                maintenance_jobs: ['requested_at', 'finished_at'],
                watchdog_incidents: ['first_seen_at', 'finished_at'],
                leaderboard_matches: ['started_at', 'last_received_at', 'ended_at'],
                betas: ['opened_at', 'closed_at'],
                script_versions: ['uploaded_at'],
                retention_controls: ['resolved_at']
            })
    },
    { version: 9, name: 'hosts and saved command files', run: migrateHostSchema },
    { version: 10, name: 'authentication', run: migrateAuthSchema },
    { version: 11, name: 'game-file libraries', run: migrateGameFileSchema },
    {
        version: 12,
        name: 'incremental vacuum page map',
        mode: 'autocommit',
        run: enableIncrementalVacuum
    },
    {
        version: 13,
        name: 'metrics policy report revisions',
        run: installMetricsPolicyRevisions
    },
    {
        version: 14,
        name: 'metrics match report revisions',
        run: installMetricsMatchRevisions
    },
    {
        version: 15,
        name: 'metrics provisioning report revisions',
        run: installMetricsProvisioningRevisions
    },
    {
        version: 16,
        name: 'metrics player history and report revisions',
        run: installMetricsPlayerRevisions
    },
    {
        version: 17,
        name: 'super viewer authentication role',
        mode: 'foreign-keys-off',
        run: migrateSuperViewerRole
    },
    {
        version: 18,
        name: 'durable leaderboard report identity and sequences',
        run: migrateLeaderboardReports
    },
    {
        version: 19,
        name: 'cumulative player score per match',
        run: migratePlayerScoreTotal
    },
    { version: 20, name: 'persistent player bank and transfer ledger', run: migrateBank },
    { version: 21, name: 'instance-owned bank credentials', run: migrateBankCredentials },
    { version: 22, name: 'remembered browser sessions', run: migrateRememberedSessions },
    { version: 23, name: 'host temperature history', run: migrateTemperatures }
];

export const databaseVersion = migrations.length;