"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var fromArgumentsToArray_1 = require("../../cast/fromArgumentsToArray");
var curry_1 = require("../../fp/curry");
var max_1 = require("../../math/max");
var _reduce_1 = require("./_reduce");
var pluck_1 = require("./pluck");
var _map_1 = require("./_map");
/**
 * Accepts a converging function and a list of branching functions and returns
 * a new function. When invoked, this new function is applied to some
 * arguments, each branching function is applied to those same arguments. The
 * results of each branching function are passed as arguments to the converging
 * function to produce the return value.
 * @since 5.0.0-beta.6
 * @memberOf fp
 *
 * @param {Function} after A function. `after` will be invoked with the return values of
 *        `fn1` and `fn2` as its arguments.
 * @param {Array} functions A list of functions.
 * @return {Function} A new function.
 *
 * @NOTE important to use 2+ functions in functions param
 *
 * @func
 * @fork v0.4.2
 * @category Function
 * @sig ((x1, x2, ...) -> z) -> [((a, b, ...) -> x1), ((a, b, ...) -> x2), ...] -> (a -> b -> ... -> z)
 * @symb converge(f, [g, h])(a, b) = f(g(a, b), h(a, b))
 *
 * @see useWith
 *
 * @example
 *
 *      var average = converge(divide, [sum, length])
 *      average([1, 2, 3, 4, 5, 6, 7]) //=> 4
 *
 *      var strangeConcat = converge(concat, [toUpper, toLower])
 *      strangeConcat("Yodel") //=> "YODELyodel"
 *
 */
function _converge(after, fns) {
    var num = _reduce_1.default(max_1.default, 0, pluck_1.default('length', fns));
    return curry_1.default(num, function () {
        var args = fromArgumentsToArray_1.fromArgumentsToArray.apply(void 0, arguments);
        var self = this;
        var index = 0;
        return after.apply(self, _map_1.default(function (fn) {
            fn = fn || fns[index++];
            // console.log({fn, args, fns, after, index, i: fns[index++]})
            return fn.apply(self, args);
        }, fns));
    });
}
var converge = curry_1.default(2, _converge);
exports.default = converge;
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