import isObject from './helpers/isObject.js'
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// Extracts the following properties from function arguments:
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// * input `text`
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// * `options` object
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// * `metadata` JSON
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export default function normalizeArguments(args) {
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const [arg_1, arg_2, arg_3, arg_4] = Array.prototype.slice.call(args)
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let text
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let options
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let metadata
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// If the phone number is passed as a string.
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// `parsePhoneNumber('88005553535', ...)`.
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if (typeof arg_1 === 'string') {
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text = arg_1
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}
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else throw new TypeError('A text for parsing must be a string.')
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// If "default country" argument is being passed then move it to `options`.
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// `parsePhoneNumber('88005553535', 'RU', [options], metadata)`.
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if (!arg_2 || typeof arg_2 === 'string')
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{
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if (arg_4) {
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options = arg_3
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metadata = arg_4
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} else {
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options = undefined
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metadata = arg_3
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}
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if (arg_2) {
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options = { defaultCountry: arg_2, ...options }
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}
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}
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// `defaultCountry` is not passed.
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// Example: `parsePhoneNumber('+78005553535', [options], metadata)`.
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else if (isObject(arg_2))
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{
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if (arg_3) {
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options = arg_2
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metadata = arg_3
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} else {
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metadata = arg_2
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}
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}
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else throw new Error(`Invalid second argument: ${arg_2}`)
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return {
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text,
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options,
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metadata
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}
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}
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