import * as Schema from 'effect/Schema';
import { QueryAST } from '@dxos/echo-protocol';
import { SchemaEx } from '@dxos/effect';
import * as internal from './internal';
import * as Obj from './Obj';
import * as Type from './Type';
/**
 * Stored field metadata (e.g., for UX).
 */
export declare const FieldSchema: Schema.Struct<{
    id: typeof Schema.String;
    path: Schema.Schema<SchemaEx.JsonPath, SchemaEx.JsonPath, never>;
    visible: Schema.optional<typeof Schema.Boolean>;
    referencePath: Schema.optional<Schema.Schema<SchemaEx.JsonPath, SchemaEx.JsonPath, never>>;
}>;
export type FieldType = Schema.Schema.Type<typeof FieldSchema>;
export declare const KeyValueProps: Schema.Record$<typeof Schema.String, typeof Schema.Any>;
export declare const createFieldId: () => string;
export declare const Projection: Schema.Struct<{
    /**
     * Optional schema override used to customize the underlying schema.
     */
    schema: Schema.optional<Schema.Schema<internal.JsonSchemaType, internal.JsonSchemaType, never>>;
    /**
     * UX metadata associated with displayed fields (in table, form, etc.)
     */
    fields: Schema.Array$<Schema.Struct<{
        id: typeof Schema.String;
        path: Schema.Schema<SchemaEx.JsonPath, SchemaEx.JsonPath, never>;
        visible: Schema.optional<typeof Schema.Boolean>;
        referencePath: Schema.optional<Schema.Schema<SchemaEx.JsonPath, SchemaEx.JsonPath, never>>;
    }>>;
    /**
     * The id for the field used to pivot the view.
     * E.g., the field to use for kanban columns or the field to use for map coordinates.
     */
    pivotFieldId: Schema.optional<typeof Schema.String>;
}>;
export type Projection = Schema.Schema.Type<typeof Projection>;
/**
 * Views are generated or user-defined projections of a schema's properties.
 * They are used to configure the visual representation of the data.
 */
declare const ViewSchema: Type.Obj<{
    readonly query: {
        readonly raw?: string | undefined;
        readonly ast: QueryAST.QueryFilterClause | QueryAST.QueryFromClause | QueryAST.QueryHierarchyTraversalClause | QueryAST.QueryIncomingReferencesClause | QueryAST.QueryLimitClause | QueryAST.QueryOptionsClause | QueryAST.QueryOrderClause | QueryAST.QueryReferenceTraversalClause | QueryAST.QueryRelationClause | QueryAST.QueryRelationTraversalClause | QueryAST.QuerySelectClause | QueryAST.QuerySetDifferenceClause | QueryAST.QueryUnionClause;
    };
    readonly projection: {
        readonly schema?: internal.JsonSchemaType | undefined;
        readonly fields: readonly {
            readonly id: string;
            readonly path: SchemaEx.JsonPath;
            readonly visible?: boolean | undefined;
            readonly referencePath?: SchemaEx.JsonPath | undefined;
        }[];
        readonly pivotFieldId?: string | undefined;
    };
}, Schema.Struct.Fields>;
export interface View extends Type.InstanceType<typeof ViewSchema> {
}
export declare const View: Type.Obj<View>;
export declare const make: (props: Partial<Obj.MakeProps<typeof View>>) => View;
export {};
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