/**
 * Applies IR-diff migration plans via Prisma Migrate or Drizzle/SQL execution.
 *
 * Prisma: write `migration.sql` under a migrate folder, then `prisma migrate deploy`.
 * Drizzle: write SQL artifact, then apply against DATABASE_URL (pg), matching db-init.
 */
export type MigrationTool = 'prisma' | 'drizzle';
export interface MigrationArtifactPlan {
    sql: string[];
    prisma: string[];
    summary: string[];
}
export interface CommandResult {
    code: number;
    stdout: string;
    stderr: string;
}
export type CommandRunner = (command: string, args: readonly string[], options: {
    cwd: string;
    env: NodeJS.ProcessEnv;
}) => Promise<CommandResult>;
export type SqlApplier = (sql: string, databaseUrl: string) => Promise<void>;
export interface MigrationToolRunnerDeps {
    writeFile?: (filePath: string, body: string) => Promise<void>;
    mkdir?: (dir: string) => Promise<void>;
    runCommand?: CommandRunner;
    applySql?: SqlApplier;
    now?: () => Date;
    env?: NodeJS.ProcessEnv;
}
export interface ApplyMigrationOptions {
    tool: MigrationTool;
    cwd: string;
    migrationsDir: string;
    databaseUrl?: string;
    /** When true, write artifacts but skip tool/SQL execution. */
    dryRun?: boolean;
}
export interface ApplyMigrationResult {
    migrationDir: string;
    sqlPath: string;
    prismaNotesPath: string | null;
    command?: CommandResult;
    appliedVia: 'prisma-migrate-deploy' | 'sql-database-url' | 'dry-run';
}
export declare class MigrationToolRunner {
    private readonly writeFile;
    private readonly mkdir;
    private readonly runCommand;
    private readonly applySql;
    private readonly now;
    private readonly env;
    constructor(deps?: MigrationToolRunnerDeps);
    apply(plan: MigrationArtifactPlan, options: ApplyMigrationOptions): Promise<ApplyMigrationResult>;
}
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