import type { MigrationOperation, SnapshotDiffResult } from '../diff/types.js';
import type { SemanticCompatibilityPlanOptions } from '../compat/types.js';
import type { Snapshot } from '../snapshot/types.js';
export type MigrationOperationClassification = 'metadata' | 'mutation' | 'data-copy' | 'forbidden';
export type MigrationPlanDiagnosticLevel = 'warning' | 'error';
export interface MigrationPlanDiagnostic {
    level: MigrationPlanDiagnosticLevel;
    kind: string;
    message: string;
    operationIndex?: number;
}
export interface MigrationPlanBlocker {
    kind: string;
    message: string;
    tableName?: string;
    columnName?: string;
    operationIndex?: number;
}
export interface MigrationPlanConfirmation {
    kind: string;
    message: string;
    operationIndex: number;
}
export interface ClickHouseMigrationSyncSetting {
    name: 'alter_sync' | 'mutations_sync' | 'replication_alter_partitions_sync' | 'distributed_ddl_task_timeout';
    value: string | number;
    reason: string;
}
export interface ClickHouseTableCostStats {
    tableName: string;
    totalRows?: number;
    totalBytes?: number;
    activeParts?: number;
    pendingMutations?: number;
    replicaAbsoluteDelaySeconds?: number;
    replicaQueueSize?: number;
}
export interface ClickHouseMigrationPlanContext {
    tables?: Record<string, ClickHouseTableCostStats> | ClickHouseTableCostStats[];
    mutationWarningBytes?: number;
    mutationWarningRows?: number;
    activePartsWarningThreshold?: number;
    pendingMutationsWarningThreshold?: number;
    replicaDelayWarningSeconds?: number;
}
export interface MigrationOperationCostEstimate {
    tableName?: string;
    affectedRows?: number;
    affectedBytes?: number;
    activeParts?: number;
    pendingMutations?: number;
    replicaAbsoluteDelaySeconds?: number;
    replicaQueueSize?: number;
    source: 'static' | 'provided-context';
    confidence: 'none' | 'low' | 'medium';
}
export interface PlannedMigrationOperation {
    operation: MigrationOperation;
    classification: MigrationOperationClassification;
    costEstimate: MigrationOperationCostEstimate;
    diagnostics: MigrationPlanDiagnostic[];
    requiredConfirmations: MigrationPlanConfirmation[];
    recommendedSyncSettings: ClickHouseMigrationSyncSetting[];
    requiredSyncSettings: ClickHouseMigrationSyncSetting[];
}
export interface MigrationPlan {
    previousSnapshot: Snapshot;
    nextSnapshot: Snapshot;
    sourceSnapshotHash: string;
    targetSnapshotHash: string;
    operations: PlannedMigrationOperation[];
    diagnostics: MigrationPlanDiagnostic[];
    blockers: MigrationPlanBlocker[];
    requiredConfirmations: MigrationPlanConfirmation[];
    recommendedSyncSettings: ClickHouseMigrationSyncSetting[];
    requiredSyncSettings: ClickHouseMigrationSyncSetting[];
}
export interface MigrationPlanAnalyzerContext {
    diff: SnapshotDiffResult;
    clickhouse?: ClickHouseMigrationPlanContext;
}
export interface MigrationPlanAnalyzerResult {
    diagnostics?: MigrationPlanDiagnostic[];
    blockers?: MigrationPlanBlocker[];
    confirmations?: MigrationPlanConfirmation[];
}
export type MigrationPlanAnalyzer = (plan: MigrationPlan, context: MigrationPlanAnalyzerContext) => MigrationPlanAnalyzerResult;
export interface CreateMigrationPlanOptions {
    requireConfirmationForMutations?: boolean;
    analyzers?: MigrationPlanAnalyzer[];
    context?: ClickHouseMigrationPlanContext;
    semanticCompatibility?: SemanticCompatibilityPlanOptions;
}
export type MigrationPlanInput = SnapshotDiffResult | MigrationPlan;
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