// Query types
export declare type queryIndexSignature = '_field' | '_gt' | '_value' | '_gte' | '_lt' | '_lte' | '_and' | '_or' | '_not' | '_in' | '_contains' | '_id' | '_between' | '_parent' | '_parent' | '_child' | '_type' | '_string' | '_like' | '_wildcard';
export type IQueryObject = {
	[key in queryIndexSignature]?: IQueryObject | IQueryObject[] | string | number | object
};

// Query Functions
export function Eq(field: string, value: any): IQueryObject { // tslint:disable-line:no-any
	return { '_field': field, '_value': value };
}
export function Gt(field: string, value: any): IQueryObject { // tslint:disable-line:no-any
	return { '_gt': { field: value } };
}
export function Gte(field: string, value: any): IQueryObject { // tslint:disable-line:no-any
	return { '_gte': { field: value } };
}
export function Lt(field: string, value: any): IQueryObject { // tslint:disable-line:no-any
	return { '_lt': { field: value } };
}
export function Lte(field: string, value: any): IQueryObject { // tslint:disable-line:no-any
	return { '_lte': { field: value } };
}
export function And(...criteria: IQueryObject[]): IQueryObject {
	return { '_and': criteria };
}
export function Or(...criteria: IQueryObject[]): IQueryObject {
	return { '_or': criteria };
}
export function Not(criteria: IQueryObject[]): IQueryObject {
	return { '_not': criteria };
}
export function In(field: string, values: any[]): IQueryObject { // tslint:disable-line:no-any
	return { '_in': { '_field': field, '_values': values } };
}
export function Contains(field: string): IQueryObject {
	return { '_contains': field };
}
export function Id(id: string | number): IQueryObject {
	return { '_id': id };
}
export function Between(field: string, fromValue: any, toValue: any): IQueryObject { // tslint:disable-line:no-any
	return { '_between': { '_field': field, '_from': fromValue, '_to': toValue } };
}
export function ParentId(tpe: string, id: string): IQueryObject {
	return { '_parent': { '_type': tpe, '_id': id } };
}
export function Parent(tpe: string, criterion: IQueryObject): IQueryObject {
	return { '_parent': { '_type': tpe, '_query': criterion } };
}
export function Child(tpe: string, criterion: IQueryObject): IQueryObject {
	return { '_child': { '_type': tpe, '_query': criterion } };
}
export function Type(tpe: string): IQueryObject {
	return { '_type': tpe };
}
export function queryString(queryString: string): IQueryObject {
	return { '_string': queryString };
}
export function Like(field: string, value: string): IQueryObject {
	return { '_like': { '_field': field, '_value': value } };
}
export function StartsWith(field: string, value: string) {
	if (!value.startsWith('*')) {
		value = value + '*';
	}
	return { '_wildcard': { '_field': field, '_value': value } };
}
export function EndsWith(field: string, value: string) {
	if (!value.endsWith('*')) {
		value = '*' + value;
	}
	return { '_wildcard': { '_field': field, '_value': value } };
}
export function ContainsString(field: string, value: string) {
	if (!value.endsWith('*')) {
		value = value + '*';
	}
	if (!value.startsWith('*')) {
		value = '*' + value;
	}
	return { '_wildcard': { '_field': field, '_value': value } };
}