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var basicFunc = require('./basicFunction.js');

var miscellaneousOperations = require('./Miscellaneous.js');

var deepClone = require('matrix_deep_clone');

var Operator =

function() {

function executeOnTwoArray(data_array, to_operation, task_to_perform) {

for (i in data_array) {

if (typeof(data_array[i]) == 'number') {

data_array[i] = task_to_perform(data_array[i], to_operation[i]);

} else if (typeof(data_array[i] == 'object')) {

executeOnTwoArray(data_array[i], to_operation[i], task_to_perform);

}

}

return data_array;

}

function executeOnNumberAndArray(data_array, to_operation, task_to_perform) {

for (i in data_array) {

if (typeof(data_array[i]) == 'object') {

data_array[i] = executeOnNumberAndArray(data_array[i], to_operation, task_to_perform);

} else {

data_array[i] = task_to_perform(data_array[i], to_operation[0]);

}

}

return data_array;

}

function executeOnNonEqualArray(data_array, to_operation, task_to_perform) {

var data_dimension = miscellaneousOperations.get_Dimensions(data_array);

var to_operation_dimension = miscellaneousOperations.get_Dimensions(to_operation);

var subset_data_dimension = data_dimension.slice(data_dimension.length - to_operation_dimension.length);

function isInnerDimensionSame() {

for (var i in to_operation_dimension) {

if (to_operation_dimension[i] != subset_data_dimension[i]) {

return false;

}

}

return true;

}

if (isInnerDimensionSame()) {

res = executeOnInnerDimensions(data_array, to_operation, data_array.slice(), 0, task_to_perform);

} else {

if (data_dimension[data_dimension.length - 2] == to_operation_dimension[0]) {

executeOnColumns(data_array, to_operation, 0, task_to_perform);

} else if (data_dimension[data_dimension.length - 1] == to_operation_dimension[1]) {

executeOnRow(data_array, to_operation, 0, task_to_perform);

} else {

throw new Error("Cannot compute the request Sorry");

}

}

return data_array;

}

function executeOnColumns(data_array, to_operation, i = 0, task_to_perform) {

if (typeof(data_array[0]) == 'number') {

data_array = executeOnNumberAndArray(data_array,to_operation[i],task_to_perform);

} else if (typeof(data_array[i] == 'object')) {

for (y in data_array) {

executeOnColumns(data_array[y], to_operation, y, task_to_perform);

}

}

}

function executeOnRow(data_array, to_operation, i = 0, task_to_perform) {

// if (miscellaneousOperations.get_Dimensions(data_array).length == 2 && miscellaneousOperations.get_Dimensions(data_array)[0] == 1) {

if (basicFunc.isSingleArray(data_array)) {

/**

* Here we cannot use executeOnNumberAndArray since

* we want to add a number to a element and not

* a number to and array

*/

for (j in data_array) {

data_array[j] = task_to_perform(data_array[j], to_operation[j]);

}

} else {

for (k in data_array) {

executeOnRow(data_array[k], to_operation, k, task_to_perform);

}

}

}

function executeOnInnerDimensions(data_array, to_operation, to_store = data_array.slice(), i = 0, task_to_perform) {

/*

* Here to_store is required because it task_to_perform with it self and creates a loop

* so to avoid circular we need a separate array

*/

if (i < data_array.length) {

if (basicFunc.are_dimensions_same(data_array, to_operation)) {

to_store[i] = executeOnTwoArray(data_array, to_operation, task_to_perform);

} else {

for (j in data_array) {

executeOnInnerDimensions(data_array[j], to_operation, data_array[j].slice(), j, task_to_perform);

}

}

}

return to_store;

}

function innerExecute(data_array, to_operation, task_to_perform) {

if (basicFunc.hasSingleItem(to_operation)) {

return executeOnNumberAndArray(data_array, to_operation, task_to_perform);

} else if (typeof(to_operation) == 'object') {

if (basicFunc.are_dimensions_same(data_array, to_operation)) {

return executeOnTwoArray(data_array, to_operation, task_to_perform);

} else {

return executeOnNonEqualArray(data_array, to_operation, task_to_perform);

}

}

return data_array;

}

function mainExecute(data_array, to_operation, replace, task_to_perform) {

if (typeof(data_array) == 'number') {

var temp = data_array;

data_array = [];

data_array[0] = temp;

}

if (typeof(to_operation) == 'number') {

var temp = to_operation;

to_operation = [];

to_operation[0] = temp;

}

var res = [];

var safety = [];

function get_toStore_object(data, replace) {

var safety = []

if (replace == true) {

safety = data;

} else {

safety = deepClone.deepCloneMatrix(data);

}

return safety;

}

if (basicFunc.is_first_greater(data_array, to_operation)) {

task_to_perform.shuffle = false;

safety = get_toStore_object(data_array, replace);

res = innerExecute(safety, to_operation, task_to_perform);

} else {

task_to_perform.shuffle = true;

safety = get_toStore_object(to_operation, replace);

res = innerExecute(safety, data_array, task_to_perform);

}

return res;

}

return {

execute: mainExecute

}

}

module.exports = Operator();