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var arrayReduceRight = require('./_arrayReduceRight'),
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    baseEachRight = require('./_baseEachRight'),
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    baseIteratee = require('./_baseIteratee'),
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    baseReduce = require('./_baseReduce'),
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    isArray = require('./isArray');
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/**
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 * This method is like `_.reduce` except that it iterates over elements of
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 * `collection` from right to left.
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 *
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 * @static
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 * @memberOf _
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 * @since 0.1.0
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 * @category Collection
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 * @param {Array|Object} collection The collection to iterate over.
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 * @param {Function} [iteratee=_.identity] The function invoked per iteration.
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 * @param {*} [accumulator] The initial value.
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 * @returns {*} Returns the accumulated value.
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 * @see _.reduce
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 * @example
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 *
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 * var array = [[0, 1], [2, 3], [4, 5]];
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 *
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 * _.reduceRight(array, function(flattened, other) {
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 *   return flattened.concat(other);
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 * }, []);
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 * // => [4, 5, 2, 3, 0, 1]
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 */
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function reduceRight(collection, iteratee, accumulator) {
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  var func = isArray(collection) ? arrayReduceRight : baseReduce,
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      initAccum = arguments.length < 3;
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  return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
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}
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module.exports = reduceRight;
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