"use strict";

const tape = require("tape");
const { Temporal } = require("@js-temporal/polyfill");
const path = require("path");
const seedRandom = require("seed-random");
const filledArray = require("fix-esm").require("filled-array").default;

require("../../src/packages/tape-snapshot").setup(tape, path.join(__dirname, "_snapshots"));

const coders = require("../../src/storage-encoder/coders");
const encodeField = require("../../src/storage-encoder/encode-field");
const namedCartesianProduct = require("../../src/packages/named-cartesian-product");

const zonedTemporal = Temporal.ZonedDateTime.from("2021-11-27T23:43:32.81701281+01:00[Europe/Amsterdam]");
const unzonedTemporal = Temporal.Instant.from("2021-11-27T22:43:32.821012817Z");
const jsDate = new Date("2021-11-27T22:43:32.821012817Z");

tape("date encoding", (test) => {
	let encodingConfigurations = namedCartesianProduct({
		value: [ zonedTemporal, unzonedTemporal, jsDate ],
		withTimezone: [ true, false ],
		asIndexKey: [ true, false ]
	});

	let encoded = encodingConfigurations.map(({ value, withTimezone, asIndexKey }) => {
		// NOTE: This uses `doEncode` to ensure that the input gets normalized to the internal data representation first. This needs to eventually be changed to use `coders.encode` directly, with separate tests for normalization!
		return encodeField({ value, withTimezone, asIndexKey, fieldType: "date", name: "_", required: true });
	});

	test.equalsSnapshot(encoded);

	// FIXME: Decode values again

	test.end();
});

tape("integer encoding", (test) => {
	let generateNumber = seedRandom("zapdb-number-test");

	let numberLists = [];

	// TODO: Add tests for higher numbers using BigInts
	for (let magnitude = 1; magnitude < 15; magnitude++) {
		let maxNumber = Math.pow(10, magnitude);
		numberLists.push(filledArray(() => Math.floor(generateNumber() * maxNumber), 30));
	}

	let positiveNumbers = numberLists.flat();
	let negativeNumbers = positiveNumbers.map((number) => 0 - number);

	let allNumbers = [
		... positiveNumbers,
		... negativeNumbers
	];

	let encodedNumbers = allNumbers.map((number) => {
		return [
			coders.encode("integer", number, { asIndexKey: true }),
			coders.encode("integer", number, { asIndexKey: false }),
		];
	});

	test.equalsSnapshot(encodedNumbers);

	// FIXME: Decode values again

	test.end();
});


tape("boolean encoding", (test) => {
	test.equalsSnapshot([
		coders.encode("boolean", true, { asIndexKey: true }),
		coders.encode("boolean", true, { asIndexKey: false }),
		coders.encode("boolean", false, { asIndexKey: true }),
		coders.encode("boolean", false, { asIndexKey: false }),
	]);

	// FIXME: Decode values again

	test.end();
});