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import { _ISelection, IValue, _IIndex, _ITable, getId, _Transaction, _Explainer, _SelectExplanation, IndexKey, Stats } from '../interfaces-private.ts';import { FilterBase } from './transform-base.ts';import { DataType, CastError, QueryError } from '../interfaces.ts';import { nullIsh } from '../utils.ts';
export class NotInFilter<T = any> extends FilterBase<T> {
    private index: _IIndex;    private keys: IndexKey[];
    entropy(t: _Transaction) {        return this.onValue.index!.entropy({            type: 'nin',            keys: this.keys,            t,        });    }
    hasItem(item: T, t: _Transaction): boolean {        const val = this.onValue.get(item, t);        return !nullIsh(val)            && !this.elts.some(x => this.onValue.type.equals(x, val));    }
    constructor(private onValue: IValue<T>        , private elts: any[]) {        super(onValue.origin!);        this.index = onValue.index!;        if (this.index.expressions.length !== 1) {            throw new Error('Only supports IN with signle expressions index');        }        if (!Array.isArray(elts)) {            throw new QueryError('Cannot iterate element list');        }        this.keys = elts.map(x => [x]);    }

    stats(t: _Transaction): Stats | null {        const all = this.base.stats(t);        if (!all) {            return null;        }        const elts = this.elts.map(x => this.index.stats(t, [x]));        if (elts.some(x => !x)) {            return null;        }        // compute based on 'all'        for (const i of elts) {            all.count -= i!.count;        }        return all;    }
    *enumerate(t: _Transaction): Iterable<T> {        yield* this.index.enumerate({            type: 'nin',            keys: this.keys,            t,        });    }

    explain(e: _Explainer): _SelectExplanation {        return {            id: e.idFor(this),            _: 'neq',            entropy: this.entropy(e.transaction),            on: this.onValue.index!.explain(e),        };    }}