import { z } from 'zod';
import type { FactoryRuleContextBase, FactoryRuleItemContext, FactoryRuleRejectionCode, FactoryRuleSource, FactoryTriageType } from '../rules/types.js';
type Immutable<T> = T extends string | number | boolean | bigint | null | undefined ? T : T extends Date ? string : T extends object ? {
    readonly [K in keyof T]: Immutable<T[K]>;
} : T;
export type BoardTransitionPolicyContext = Immutable<FactoryRuleContextBase & {
    board: string;
    fromStage: string;
    toStage: string;
    source: FactoryRuleSource;
    initialEntry: boolean;
    reenter: boolean;
    itemRevision: number;
    isHumanTransition: boolean;
    requestedTriageType?: FactoryTriageType;
    item: FactoryRuleItemContext & {
        triageType: FactoryTriageType | null;
    };
}>;
export type BoardTransitionPolicyResult = undefined | {
    type: 'allow';
    triageType?: FactoryTriageType;
    accept?: true;
} | {
    type: 'reject';
    code: FactoryRuleRejectionCode;
    reason: string;
};
export type BoardTransitionPolicy = (context: BoardTransitionPolicyContext) => BoardTransitionPolicyResult | Promise<BoardTransitionPolicyResult>;
export declare function immutablePolicySnapshot<T>(value: T): Immutable<T>;
export declare const boardTransitionPolicyResultSchema: z.ZodUnion<readonly [z.ZodUndefined, z.ZodDiscriminatedUnion<[z.ZodObject<{
    type: z.ZodLiteral<"allow">;
    triageType: z.ZodOptional<z.ZodEnum<{
        bug: "bug";
        "feature request": "feature request";
        docs: "docs";
        "question/support": "question/support";
        maintenance: "maintenance";
        duplicate: "duplicate";
        resolved: "resolved";
        invalid: "invalid";
        spam: "spam";
        "out-of-scope": "out-of-scope";
        other: "other";
    }>>;
    accept: z.ZodOptional<z.ZodLiteral<true>>;
}, z.core.$strict>, z.ZodObject<{
    type: z.ZodLiteral<"reject">;
    code: z.ZodEnum<{
        forbidden: "forbidden";
        invalid_transition: "invalid_transition";
        missing_binding: "missing_binding";
        stale: "stale";
        timeout: "timeout";
        rule_error: "rule_error";
        causal_depth_exceeded: "causal_depth_exceeded";
        repeated_transition: "repeated_transition";
        approval_required: "approval_required";
    }>;
    reason: z.ZodString;
}, z.core.$strict>], "type">]>;
export {};
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