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import {pipe} from 'fp-ts/function';
import { Expr, ListExpr } from '../types'
import {match} from '../utils';
export const find = <T>([startO, exprs, endO]: ListExpr, list: T[]): any => {
const check = (expr: Expr) => <T>(x: T, i: number, ls: T[]): boolean => {
return pipe(
expr,
match<boolean, Expr>({
AnyItem: _ => true,
AnyNumber: _ => typeof x === 'number',
AnyString: _ => typeof x === 'string',
AnyBool: _ => typeof x === 'boolean',
Truthy: _ => !!x,
Falsey: _ => !x,
Group: ({ exprs }) => exprs.every(e => check(e)(x, i, ls)),
_: _ => false,
})
)
};
const cs = exprs.map(check)
return list.filter((x, i, ls) => cs.every(c => c(x, i, ls)))
}
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