query/src/filter.js

class Filter {
	constructor(options) {
		this._options = options
	}

	_eq(value, key, result) {
		let isValid = false

		if (result[key] === value) {
			isValid = true
		}

		return isValid
	}

	_neq(value, key, result) {
		let isValid = false

		if (result[key] !== value) {
			isValid = true
		}

		return isValid
	}

	_in(value, key, result) {
		let isValid = false

		if (!result[key]) {
			isValid = false
		}

		if (Array.isArray(value)) {
			let found = false

			// run through array
			value.forEach((v, index) => {
				if (result[key].indexOf(v) !== -1) {
					found = true
				}
			})

			if (found) {
				isValid = true
			}
		} else {
			if (result[key].indexOf(value) !== -1) {
				isValid = true
			}
		}

		return isValid
	}

	validate(result) {

		let isValid = true

		for (const [key, value] of Object.entries(this._options)) {

			const operators = Object.keys(value)

			operators.forEach((operator) => {
				if (!this[operator](value[operator], key, result)) {
					isValid = false
				}
			})
		}

		return isValid
	}
}

module.exports = Filter