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const {constants} = require('../lifx');
const {format} = require('util');
const validate = exports;
/**
* Checks validity of given color hue, saturation and brightness values
* @param {any} hue value to validate
* @param {any} saturation value to validate
* @param {any} brightness brightness value to validate
* @param {String} context validation context
*/
validate.colorHsb = function(hue, saturation, brightness, context) {
const hueMessage = 'LIFX %s expects hue to be a number between ' + constants.HSBK_MINIMUM_HUE + ' and ' + constants.HSBK_MAXIMUM_HUE;
if (typeof hue !== 'number') {
throwTypeError(hueMessage, context);
} else if (hue < constants.HSBK_MINIMUM_HUE || hue > constants.HSBK_MAXIMUM_HUE) {
throwRangeError(hueMessage, context);
}
const saturationMessage = 'LIFX %s expects saturation to be a number between ' + constants.HSBK_MINIMUM_SATURATION + ' and ' +
constants.HSBK_MAXIMUM_SATURATION;
if (typeof saturation !== 'number') {
throwTypeError(saturationMessage, context);
} else if (saturation < constants.HSBK_MINIMUM_SATURATION || saturation > constants.HSBK_MAXIMUM_SATURATION) {
throwRangeError(saturationMessage, context);
}
const brightnessMessage = 'LIFX %s expects brightness to be a number between ' + constants.HSBK_MINIMUM_BRIGHTNESS + ' and ' +
constants.HSBK_MAXIMUM_BRIGHTNESS;
if (typeof brightness !== 'number') {
throwTypeError(brightnessMessage, context);
} else if (brightness < constants.HSBK_MINIMUM_BRIGHTNESS || brightness > constants.HSBK_MAXIMUM_BRIGHTNESS) {
throwRangeError(brightnessMessage, context);
}
};
/**
* Checks validity of color RGB values
* @param {any} red Red value to validate
* @param {any} green Green value to validate
* @param {any} blue Blue value to validate
* @param {String} context validation context
*/
validate.colorRgb = function(red, green, blue, context) {
if (typeof red !== 'number') {
throwTypeError('LIFX %s expects first parameter red to a number', context);
}
if (red < constants.RGB_MINIMUM_VALUE || red > constants.RGB_MAXIMUM_VALUE) {
throwRangeError('LIFX %s expects first parameter red to be between 0 and 255', context);
}
if (typeof green !== 'number') {
throwTypeError('LIFX %s expects second parameter green to a number', context);
}
if (green < constants.RGB_MINIMUM_VALUE || green > constants.RGB_MAXIMUM_VALUE) {
throwRangeError('LIFX %s expects second parameter green to be between 0 and 255', context);
}
if (typeof blue !== 'number') {
throwTypeError('LIFX %s expects third parameter blue to a number', context);
}
if (blue < constants.RGB_MINIMUM_VALUE || blue > constants.RGB_MAXIMUM_VALUE) {
throw new RangeError('LIFX light colorRgb method expects third parameter blue to be between 0 and 255');
}
};
/**
* Checks validity of IR brightness
* @param {any} brightness IR brightness to validate
* @param {String} context validation context
*/
validate.irBrightness = function(brightness, context) {
if (typeof brightness !== 'number' || brightness < constants.IR_MINIMUM_BRIGHTNESS || brightness > constants.IR_MAXIMUM_BRIGHTNESS) {
throwRangeError('LIFX %s expects brightness to be a number between ' +
constants.IR_MINIMUM_BRIGHTNESS + ' and ' + constants.IR_MAXIMUM_BRIGHTNESS, context);
}
};
/**
* Checks validity of an optional kelvin value
* @param {any} kelvin Kelvin value to validate
* @param {String} context validation context
*/
validate.optionalKelvin = function(kelvin, context) {
if (kelvin !== undefined) {
const message = `LIFX %s expects kelvin to be a number between ${constants.HSBK_MINIMUM_KELVIN} and ${constants.HSBK_MAXIMUM_KELVIN}`;
if (typeof kelvin !== 'number') {
throwTypeError(message, context);
} else if (kelvin < constants.HSBK_MINIMUM_KELVIN || kelvin > constants.HSBK_MAXIMUM_KELVIN) {
throwRangeError(message, context);
}
}
};
/**
* Checks validity of an optional transition time
* @param {any} duration Transition time to validate
* @param {String} context validation context
*/
validate.optionalDuration = function(duration, context) {
if (duration !== undefined && typeof duration !== 'number') {
throwTypeError('LIFX %s expects duration to be a number', context);
}
};
/**
* Checks validity of a callback function
* @param {any} callback Callback to validate
* @param {String} context validation context
*/
validate.callback = function(callback, context) {
if (typeof callback !== 'function') {
throwTypeError('LIFX %s expects callback to be a function', context);
}
};
/**
* Checks validity of an optional callback function
* @param {any} callback Callback to validate
* @param {String} context validation context
*/
validate.optionalCallback = function(callback, context) {
if (callback !== undefined && typeof callback !== 'function') {
throwTypeError('LIFX %s expects callback to be a function', context);
}
};
/**
* Checks validity of an optional boolean
* @param {any} value value to validate
* @param {any} parameter validated parameter name
* @param {String} context validation context
*/
validate.optionalBoolean = function(value, parameter, context) {
if (value !== undefined && typeof value !== 'boolean') {
throwTypeError('LIFX %s expects "%s" to be a boolean', context, parameter);
}
};
/**
* Checks validity of an optional number
* @param {any} value value to validate
* @param {any} parameter validated parameter name
* @param {String} context validation context
*/
validate.optionalNumber = function(value, parameter, context) {
Iif (value !== undefined && typeof value !== 'number') {
throwTypeError('LIFX %s expects "%s" to be a number', context, parameter);
}
};
/**
* Checks validity of an waveform id
* @param {any} value value to validate
* @param {String} context validation context
*/
validate.optionalWaveform = function(value, context) {
Iif (value !== undefined && typeof value !== 'number') {
throwTypeError('LIFX %s expects "%s" to be a number', context, 'waveform');
}
Eif (value !== undefined) {
Iif (value < 0) {
throwTypeError('LIFX %s expects "%s" to be >= 0', context, 'waveform');
}
Iif (value > 4) {
throwTypeError('LIFX %s expects "%s" to be <= 4', context, 'waveform');
}
}
};
/**
* Checks validity of a light zone index
* @param {any} index Light zone index to validate
* @param {String} context validation context
*/
validate.zoneIndex = function(index, context) {
const zoneMessage = 'LIFX %s expects zone to be a number between ' +
constants.ZONE_INDEX_MINIMUM_VALUE + ' and ' + constants.ZONE_INDEX_MAXIMUM_VALUE;
if (typeof index !== 'number') {
throwTypeError(zoneMessage, context);
} else if (index < constants.ZONE_INDEX_MINIMUM_VALUE || index > constants.ZONE_INDEX_MAXIMUM_VALUE) {
throwRangeError(zoneMessage, context);
}
};
/**
* Checks validity of an optional light zone index
* @param {any} index Light zone index to validate
* @param {String} context validation context
* @return {Boolean} const true or an exception
*/
validate.optionalZoneIndex = function(index, context) {
const zoneMessage = 'LIFX %s expects zone to be a number between ' +
constants.ZONE_INDEX_MINIMUM_VALUE + ' and ' + constants.ZONE_INDEX_MAXIMUM_VALUE;
Eif (index !== undefined) {
if (typeof index !== 'number') {
throwTypeError(zoneMessage, context);
} else if (index < constants.ZONE_INDEX_MINIMUM_VALUE || index > constants.ZONE_INDEX_MAXIMUM_VALUE) {
throwRangeError(zoneMessage, context);
}
}
return true;
};
/**
* Checks validity of a relay index
* @param {any} index Light relay index to validate
* @param {String} context validation context
*/
validate.relayIndex = function(index, context) {
const relayMessage = 'LIFX %s expects zone to be a number between ' +
constants.RELAY_INDEX_MINIMUM_VALUE + ' and ' + constants.RELAY_INDEX_MAXIMUM_VALUE;
if (typeof index !== 'number') {
throwTypeError(relayMessage, context);
} else if (index < constants.RELAY_INDEX_MINIMUM_VALUE || index > constants.RELAY_INDEX_MAXIMUM_VALUE) {
throwRangeError(relayMessage, context);
}
};
/**
* test if the given value is an uint value
* @param {Number} val the given uint value as number
* @param {String} context the string for the error message
* @param {Number} range the range of the uint value
* @return {Boolean} const true or an exception
*/
validate.isUIntRange = function(val, context, range) {
if (typeof val !== 'number') {
throwTypeError('LIFX %s expects "%s" to be a number', context, val);
}
if (!(val >= 0 && val <= range)) {
throw new RangeError(`LIFX ${context} expects "${val}" to be a number between 0 and ${range}`);
}
return true;
};
/**
* test if the given value is an uint8 value
* @param {Number} val the given uint8 value as number
* @param {String} context the string for the error message
* @return {Boolean} const true or an exception
*/
validate.isUInt8 = function(val, context) {
return validate.isUIntRange(val, context, 0xff);
};
/**
* test if the given value is an uint16 value
* @param {Number} val the given uint16 value as number
* @param {String} context the string for the error message
* @return {Boolean} const true or an exception
*/
validate.isUInt16 = function(val, context) {
return validate.isUIntRange(val, context, 0xffff);
};
/**
* test if the given value is an uint32 value
* @param {Number} val the given uint32 value as number
* @param {String} context the string for the error message
* @return {Boolean} const true or an exception
*/
validate.isUInt32 = function(val, context) {
return validate.isUIntRange(val, context, 0xffffffff);
};
/**
* Formats error message and throws a TypeError
* @param {String} message Error message
* @param {String} context Validation context
* @param {String} [parameter] Validated parameter name
*/
function throwTypeError(message, context, parameter) {
throw new TypeError(format(message, context, parameter));
}
/**
* Formats the error message and throws a RangeError
* @param {String} message Error message
* @param {String} context Validation context
* @param {String} [parameter] Validated parameter name
*/
function throwRangeError(message, context, parameter) {
throw new RangeError(format(message, context, parameter));
}
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