import { expr } from "./cxn";
export type Kind = "aspect" | "context" | "service" | "entity" | "type" | "action" | "function" | "annotation" | "element" | "action" | "function" | "event";
interface Elements {
    elements: {
        [element: string]: ElementDefinition;
    };
}
interface ActionOrFunction {
    params?: {
        [paramName: string]: {
            type: BuiltInType;
        };
    };
    returns?: {
        type: BuiltInType;
    };
}
export interface EventDefinition extends Definition, Elements {
    kind: "event";
    elements: {
        [element: string]: ElementDefinition;
    };
}
export interface TypeDefinition extends Definition {
    kind: "type";
    type: BuiltInType;
    length?: number;
    precision?: number;
    scale?: number;
    default?: expr;
    target?: string;
    keys?: Array<expr>;
}
export interface AspectDefinition extends Definition, Elements {
    kind: "aspect";
}
export interface ActionDefinition extends Definition, ActionOrFunction {
    kind: "action";
}
export interface FunctionDefinition extends Definition, ActionOrFunction {
    kind: "function";
}
export interface AssociationDefinition extends ElementDefinition {
    type: "cds.Association";
    target: string;
    cardinality?: {
        max: string;
    };
    on?: Array<expr>;
    keys?: Array<expr>;
}
/**
 * entity definition type
 */
export interface EntityDefinition extends Definition, Elements {
    kind: "entity";
    /**
     * aspects
     */
    includes?: Array<string>;
    projection?: {
        from: {
            ref: Array<string>;
        };
        columns: Array<expr>;
    };
    query?: {
        from: {
            ref: Array<string>;
        };
        columns: Array<expr>;
    };
}
export type BuiltInType = "cds.Binary" | "cds.Boolean" | "cds.String" | "cds.Integer" | "cds.UUID" | "cds.Decimal" | "cds.Date" | "cds.Time" | "cds.DateTime" | "cds.TimeStamp" | "cds.Binary" | "cds.LargeBinary" | "cds.LargeString" | "cds.Association";
/**
 * element definition type
 */
export interface ElementDefinition {
    key?: boolean;
    type: BuiltInType | string;
    isAssociation?: boolean;
    [attributes: string]: any;
}
export interface ServiceDefinition extends Definition {
    kind: "service";
    path: string;
    "@source"?: string;
    "@requires"?: any;
}
export interface Definition {
    kind: Kind;
    name?: string;
    localized?: boolean;
    [attributes: string]: any;
}
export type VarDefinition = ServiceDefinition | ActionDefinition | FunctionDefinition | AspectDefinition | TypeDefinition | EntityDefinition | EventDefinition;
export declare class CSN {
    namespace?: string;
    $version: string;
    definitions: {
        [key: string]: VarDefinition;
    };
    meta?: {
        creator?: string;
        flavor?: string;
    };
}
export {};