import * as t from "io-ts";
import { StrKey, Dict } from "./utils/util-types";
import { AliasHierarchyVisitor } from "./AliasHierarchyVisitor";
import { MappedField } from "./MappedField";
import { TypeSpec } from "./utils/types";
import { GraphQLInputType, GraphQLOutputType } from "graphql";
declare const BaseFieldMappingRT: t.IntersectionC<[t.TypeC<{
    /**
     * @memberof BaseFieldMapping
     */
    type: import("./utils/util-types").InstanceType<TypeSpec<unknown, any, any>>;
}>, t.PartialC<{
    /**
     * @memberof BaseFieldMapping
     */
    exposed: t.BooleanC;
    /**
     * @memberof BaseFieldMapping
     */
    description: t.StringC;
    /**
     * @memberof BaseFieldMapping
     */
    getColumnMappingList: t.FunctionC;
}>]>;
declare const ColumnFieldMappingRT: t.IntersectionC<[t.IntersectionC<[t.TypeC<{
    /**
     * @memberof BaseFieldMapping
     */
    type: import("./utils/util-types").InstanceType<TypeSpec<unknown, any, any>>;
}>, t.PartialC<{
    /**
     * @memberof BaseFieldMapping
     */
    exposed: t.BooleanC;
    /**
     * @memberof BaseFieldMapping
     */
    description: t.StringC;
    /**
     * @memberof BaseFieldMapping
     */
    getColumnMappingList: t.FunctionC;
}>]>, t.PartialC<{
    sourceColumn: t.StringC;
    sourceTable: t.StringC;
    isPrimary: t.BooleanC;
    fromSource: t.FunctionC;
    toSource: t.FunctionC;
}>]>;
declare const ComputedFieldMappingRT: t.IntersectionC<[t.IntersectionC<[t.TypeC<{
    /**
     * @memberof BaseFieldMapping
     */
    type: import("./utils/util-types").InstanceType<TypeSpec<unknown, any, any>>;
}>, t.PartialC<{
    /**
     * @memberof BaseFieldMapping
     */
    exposed: t.BooleanC;
    /**
     * @memberof BaseFieldMapping
     */
    description: t.StringC;
    /**
     * @memberof BaseFieldMapping
     */
    getColumnMappingList: t.FunctionC;
}>]>, t.IntersectionC<[t.TypeC<{
    dependencies: t.ArrayC<t.StringC>;
    derive: t.FunctionC;
}>, t.PartialC<{
    reduce: t.FunctionC;
}>]>]>;
/**
 *
 * @api-category ConfigType
 */
export interface BaseFieldMapping<TMapped> extends t.TypeOf<typeof BaseFieldMappingRT> {
    type: TypeSpec<TMapped, GraphQLInputType, GraphQLOutputType>;
    getColumnMappingList?: (aliasHierarchyVisitor: AliasHierarchyVisitor, aliasColumnsToTableScope: boolean) => ColumnMapping[];
}
/**
 * @api-category ConfigType
 */
declare type ColumnFieldMapping$1<TMapped = any> = BaseFieldMapping<TMapped> & t.TypeOf<typeof ColumnFieldMappingRT>;
export interface ColumnFieldMapping<TMapped = any> extends ColumnFieldMapping$1<TMapped> {
    fromSource?: (i: any) => TMapped;
    toSource?: (i: TMapped) => any;
}
/**
 * @api-category ConfigType
 */
export declare type ComputedFieldMapping<TMapped = any, TArgs extends {} = any> = BaseFieldMapping<TMapped> & t.TypeOf<typeof ComputedFieldMappingRT> & {
    dependencies: Array<StrKey<TArgs>>;
    derive: (args: TArgs) => TMapped;
    reduce?: (args: TArgs) => Dict;
};
export declare const FieldMappingRT: t.UnionC<[t.IntersectionC<[t.IntersectionC<[t.TypeC<{
    /**
     * @memberof BaseFieldMapping
     */
    type: import("./utils/util-types").InstanceType<TypeSpec<unknown, any, any>>;
}>, t.PartialC<{
    /**
     * @memberof BaseFieldMapping
     */
    exposed: t.BooleanC;
    /**
     * @memberof BaseFieldMapping
     */
    description: t.StringC;
    /**
     * @memberof BaseFieldMapping
     */
    getColumnMappingList: t.FunctionC;
}>]>, t.PartialC<{
    sourceColumn: t.StringC;
    sourceTable: t.StringC;
    isPrimary: t.BooleanC;
    fromSource: t.FunctionC;
    toSource: t.FunctionC;
}>]>, t.IntersectionC<[t.IntersectionC<[t.TypeC<{
    /**
     * @memberof BaseFieldMapping
     */
    type: import("./utils/util-types").InstanceType<TypeSpec<unknown, any, any>>;
}>, t.PartialC<{
    /**
     * @memberof BaseFieldMapping
     */
    exposed: t.BooleanC;
    /**
     * @memberof BaseFieldMapping
     */
    description: t.StringC;
    /**
     * @memberof BaseFieldMapping
     */
    getColumnMappingList: t.FunctionC;
}>]>, t.IntersectionC<[t.TypeC<{
    dependencies: t.ArrayC<t.StringC>;
    derive: t.FunctionC;
}>, t.PartialC<{
    reduce: t.FunctionC;
}>]>]>]>;
/**
 * @api-category ConfigType
 */
export declare type FieldMappingArgs<T extends FieldMapping<any, any>> = T extends FieldMapping<any, infer I> ? I : never;
export interface ColumnMapping {
    field: MappedField;
    columnRef: string;
    columnAlias: string;
}
/**
 * @api-category ConfigType
 */
export declare type FieldMapping<TMapped, TArgs extends {}> = ColumnFieldMapping<TMapped> | ComputedFieldMapping<TMapped, TArgs>;
export {};