export const parseBoolean = (value) => {
    switch (value) {
        case "true":
            return true;
        case "false":
            return false;
        default:
            throw new Error(`Unable to parse boolean value "${value}"`);
    }
};
export const expectBoolean = (value) => {
    if (value === null || value === undefined) {
        return undefined;
    }
    if (typeof value === "number") {
        if (value === 0 || value === 1) {
            logger.warn(stackTraceWarning(`Expected boolean, got ${typeof value}: ${value}`));
        }
        if (value === 0) {
            return false;
        }
        if (value === 1) {
            return true;
        }
    }
    if (typeof value === "string") {
        const lower = value.toLowerCase();
        if (lower === "false" || lower === "true") {
            logger.warn(stackTraceWarning(`Expected boolean, got ${typeof value}: ${value}`));
        }
        if (lower === "false") {
            return false;
        }
        if (lower === "true") {
            return true;
        }
    }
    if (typeof value === "boolean") {
        return value;
    }
    throw new TypeError(`Expected boolean, got ${typeof value}: ${value}`);
};
export const expectNumber = (value) => {
    if (value === null || value === undefined) {
        return undefined;
    }
    if (typeof value === "string") {
        const parsed = parseFloat(value);
        if (!Number.isNaN(parsed)) {
            if (String(parsed) !== String(value)) {
                logger.warn(stackTraceWarning(`Expected number but observed string: ${value}`));
            }
            return parsed;
        }
    }
    if (typeof value === "number") {
        return value;
    }
    throw new TypeError(`Expected number, got ${typeof value}: ${value}`);
};
const MAX_FLOAT = Math.ceil(2 ** 127 * (2 - 2 ** -23));
export const expectFloat32 = (value) => {
    const expected = expectNumber(value);
    if (expected !== undefined && !Number.isNaN(expected) && expected !== Infinity && expected !== -Infinity) {
        if (Math.abs(expected) > MAX_FLOAT) {
            throw new TypeError(`Expected 32-bit float, got ${value}`);
        }
    }
    return expected;
};
export const expectLong = (value) => {
    if (value === null || value === undefined) {
        return undefined;
    }
    if (Number.isInteger(value) && !Number.isNaN(value)) {
        return value;
    }
    throw new TypeError(`Expected integer, got ${typeof value}: ${value}`);
};
export const expectInt = expectLong;
export const expectInt32 = (value) => expectSizedInt(value, 32);
export const expectShort = (value) => expectSizedInt(value, 16);
export const expectByte = (value) => expectSizedInt(value, 8);
const expectSizedInt = (value, size) => {
    const expected = expectLong(value);
    if (expected !== undefined && castInt(expected, size) !== expected) {
        throw new TypeError(`Expected ${size}-bit integer, got ${value}`);
    }
    return expected;
};
const castInt = (value, size) => {
    switch (size) {
        case 32:
            return Int32Array.of(value)[0];
        case 16:
            return Int16Array.of(value)[0];
        case 8:
            return Int8Array.of(value)[0];
    }
};
export const expectNonNull = (value, location) => {
    if (value === null || value === undefined) {
        if (location) {
            throw new TypeError(`Expected a non-null value for ${location}`);
        }
        throw new TypeError("Expected a non-null value");
    }
    return value;
};
export const expectObject = (value) => {
    if (value === null || value === undefined) {
        return undefined;
    }
    if (typeof value === "object" && !Array.isArray(value)) {
        return value;
    }
    const receivedType = Array.isArray(value) ? "array" : typeof value;
    throw new TypeError(`Expected object, got ${receivedType}: ${value}`);
};
export const expectString = (value) => {
    if (value === null || value === undefined) {
        return undefined;
    }
    if (typeof value === "string") {
        return value;
    }
    if (["boolean", "number", "bigint"].includes(typeof value)) {
        logger.warn(stackTraceWarning(`Expected string, got ${typeof value}: ${value}`));
        return String(value);
    }
    throw new TypeError(`Expected string, got ${typeof value}: ${value}`);
};
export const expectUnion = (value) => {
    if (value === null || value === undefined) {
        return undefined;
    }
    const asObject = expectObject(value);
    const setKeys = Object.entries(asObject)
        .filter(([, v]) => v != null)
        .map(([k]) => k);
    if (setKeys.length === 0) {
        throw new TypeError(`Unions must have exactly one non-null member. None were found.`);
    }
    if (setKeys.length > 1) {
        throw new TypeError(`Unions must have exactly one non-null member. Keys ${setKeys} were not null.`);
    }
    return asObject;
};
export const strictParseDouble = (value) => {
    if (typeof value == "string") {
        return expectNumber(parseNumber(value));
    }
    return expectNumber(value);
};
export const strictParseFloat = strictParseDouble;
export const strictParseFloat32 = (value) => {
    if (typeof value == "string") {
        return expectFloat32(parseNumber(value));
    }
    return expectFloat32(value);
};
const NUMBER_REGEX = /(-?(?:0|[1-9]\d*)(?:\.\d+)?(?:[eE][+-]?\d+)?)|(-?Infinity)|(NaN)/g;
const parseNumber = (value) => {
    const matches = value.match(NUMBER_REGEX);
    if (matches === null || matches[0].length !== value.length) {
        throw new TypeError(`Expected real number, got implicit NaN`);
    }
    return parseFloat(value);
};
export const limitedParseDouble = (value) => {
    if (typeof value == "string") {
        return parseFloatString(value);
    }
    return expectNumber(value);
};
export const handleFloat = limitedParseDouble;
export const limitedParseFloat = limitedParseDouble;
export const limitedParseFloat32 = (value) => {
    if (typeof value == "string") {
        return parseFloatString(value);
    }
    return expectFloat32(value);
};
const parseFloatString = (value) => {
    switch (value) {
        case "NaN":
            return NaN;
        case "Infinity":
            return Infinity;
        case "-Infinity":
            return -Infinity;
        default:
            throw new Error(`Unable to parse float value: ${value}`);
    }
};
export const strictParseLong = (value) => {
    if (typeof value === "string") {
        return expectLong(parseNumber(value));
    }
    return expectLong(value);
};
export const strictParseInt = strictParseLong;
export const strictParseInt32 = (value) => {
    if (typeof value === "string") {
        return expectInt32(parseNumber(value));
    }
    return expectInt32(value);
};
export const strictParseShort = (value) => {
    if (typeof value === "string") {
        return expectShort(parseNumber(value));
    }
    return expectShort(value);
};
export const strictParseByte = (value) => {
    if (typeof value === "string") {
        return expectByte(parseNumber(value));
    }
    return expectByte(value);
};
const stackTraceWarning = (message) => {
    return String(new TypeError(message).stack || message)
        .split("\n")
        .slice(0, 5)
        .filter((s) => !s.includes("stackTraceWarning"))
        .join("\n");
};
export const logger = {
    warn: console.warn,
};