export type RelationDef = {
    entity: string;
    type: 'one' | 'many';
    required?: boolean;
};
export type EntityDef = {
    fields: Record<string, unknown>;
    relations: Record<string, RelationDef>;
    filters?: Record<string, unknown>;
    insertInput?: Record<string, unknown>;
    updateInput?: Record<string, unknown>;
    orderBy?: Record<string, unknown>;
};
export type AnyEntityDefs = Record<string, EntityDef>;
/** Opaque wrapper that prevents TS from expanding entity defs during serialization */
export interface EntityDefsRef<TDefs extends AnyEntityDefs> {
    readonly __defs: TDefs;
}
export type EntityDescriptor = {
    queryName: string;
    queryListName: string;
    countName: string;
    insertName: string;
    insertSingleName: string;
    updateName: string;
    deleteName: string;
    fields: readonly string[];
    relations: Record<string, {
        entity: string;
        type: 'one' | 'many';
    }>;
};
export type SchemaDescriptor = Record<string, EntityDescriptor>;
export type SelectInput<TDefs extends AnyEntityDefs, TEntity extends EntityDef> = {
    [K in keyof TEntity['fields'] | keyof TEntity['relations']]?: K extends keyof TEntity['relations'] ? TEntity['relations'][K] extends RelationDef ? TEntity['relations'][K]['entity'] extends keyof TDefs ? SelectInput<TDefs, TDefs[TEntity['relations'][K]['entity']]> : never : never : K extends keyof TEntity['fields'] ? true : never;
};
type Simplify<T> = {
    [K in keyof T]: T[K];
} & {};
export type InferResult<TDefs extends AnyEntityDefs, TEntity extends EntityDef, TSelect> = Simplify<InferScalars<TEntity, TSelect> & InferRelations<TDefs, TEntity, TSelect>>;
type InferScalars<TEntity extends EntityDef, TSelect> = Pick<TEntity['fields'], keyof TSelect & keyof TEntity['fields']>;
type InferRelations<TDefs extends AnyEntityDefs, TEntity extends EntityDef, TSelect> = {
    [K in keyof TSelect & keyof TEntity['relations'] as TSelect[K] extends Record<string, unknown> ? K : never]: TEntity['relations'][K] extends RelationDef ? TEntity['relations'][K]['entity'] extends keyof TDefs ? TEntity['relations'][K]['type'] extends 'many' ? InferResult<TDefs, TDefs[TEntity['relations'][K]['entity']], TSelect[K]>[] : InferResult<TDefs, TDefs[TEntity['relations'][K]['entity']], TSelect[K]> | null : never : never;
};
export type ClientConfig<TSchema extends SchemaDescriptor = SchemaDescriptor> = {
    url: string | (() => string);
    schema: TSchema;
    headers?: HeadersInit | (() => HeadersInit | Promise<HeadersInit>);
};
export {};