/**
 * PZG Pro - Drift Guard Generator
 * DMMF-based implementation for schema change detection
 */
import { DMMF } from '@prisma/generator-helper';
import { ProFeatureBase } from '../../core/ProFeatureBase';
export interface DriftGuardConfig {
    baseBranch?: string;
    headBranch?: string;
    outputFormat?: 'github' | 'json' | 'text';
    strictMode?: boolean;
    allowedBreaks?: string[];
}
export interface SchemaChange {
    type: 'breaking' | 'non-breaking';
    category: 'field' | 'enum' | 'model' | 'type' | 'validation';
    model: string;
    field?: string;
    change: string;
    description: string;
    severity: 'error' | 'warning' | 'info';
}
export declare class DriftGuardGenerator extends ProFeatureBase {
    private config;
    constructor(context: any, config?: DriftGuardConfig);
    protected getFeatureName(): string;
    /**
     * Drift Guard writes no files.
     *
     * It compares two schema revisions, which needs both revisions — something
     * `prisma generate` does not have. It is driven by the `pzg-pro guard` CLI or by
     * `validateDrift()`. This used to log "Analyzed N models for schema drift
     * detection" and produce nothing, which reads as a successful generation.
     */
    protected generateFeature(): Promise<void>;
    /**
     * Compare two DMMF documents and detect schema changes
     */
    compareSchemas(baseDMMF: DMMF.Document, headDMMF: DMMF.Document): SchemaChange[];
    private compareModels;
    private compareModelFields;
    private compareFieldProperties;
    private compareEnums;
    private compareEnumValues;
    /**
     * Format changes for output
     */
    formatOutput(changes: SchemaChange[]): string;
    private formatGitHubOutput;
    private formatJSONOutput;
    private formatTextOutput;
    /**
     * Validate changes and determine if they should fail CI
     */
    /** How many of these breaks the caller explicitly allowed. */
    private countWhitelisted;
    shouldFailCI(changes: SchemaChange[]): boolean;
    private buildChangeIdentifier;
}