import keyCode from "../lib/keycode";

export default function ($, Inputmask) {
	$.caret = function (input, begin, end) {
		input = input.nodeName ? input : input[0];
		input.focus();
		var range;
		if (typeof begin === "number") {
			end = (typeof end == "number") ? end : begin;
			// if (!$(input).is(":visible")) {
			// 	return;
			// }

			if (input.setSelectionRange) {
				input.setSelectionRange(begin, end);
			} else if (window.getSelection) {
				range = document.createRange();
				if (input.firstChild === undefined) {
					var textNode = document.createTextNode("");
					input.appendChild(textNode);
				}
				range.setStart(input.firstChild, begin < input.value.length ? begin : input.value.length);
				range.setEnd(input.firstChild, end < input.value.length ? end : input.value.length);
				range.collapse(true);
				var sel = window.getSelection();
				sel.removeAllRanges();
				sel.addRange(range);
				//input.focus();
			} else if (input.createTextRange) {
				range = input.createTextRange();
				range.collapse(true);
				range.moveEnd("character", end);
				range.moveStart("character", begin);
				range.select();

			}
		} else {
			if ("selectionStart" in input && "selectionEnd" in input) {
				begin = input.selectionStart;
				end = input.selectionEnd;
			} else if (window.getSelection) {
				range = window.getSelection().getRangeAt(0);
				if (range.commonAncestorContainer.parentNode === input || range.commonAncestorContainer === input) {
					begin = range.startOffset;
					end = range.endOffset;
				}
			} else if (document.selection && document.selection.createRange) {
				range = document.selection.createRange();
				begin = 0 - range.duplicate().moveStart("character", -100000);
				end = begin + range.text.length;
			}
			/*eslint-disable consistent-return */
			return {
				"begin": begin,
				"end": end
			};
			/*eslint-enable consistent-return */
		}
	};
	$.fn = $.fn || $.prototype;
	$.fn.SendKey = function (keycode, modifier) {
		var elem = this.nodeName ? this : this[0], origCode = keycode;
		elem.type = "text"; //force textinput to support caret fn


		function trigger(elem, evnt) {
			elem.focus();
			if ($ === window.jQuery) {
				$(elem).trigger(evnt);
			} else {
				if (document.createEvent) {
					elem.dispatchEvent(evnt);
				} else {
					elem.fireEvent("on" + evnt.eventType, evnt);
				}
			}
		}

		var sendDummyKeydown = false;
		if (Object.prototype.toString.call(keycode) == "[object String]") {
			keycode = keycode.charCodeAt(0);
			sendDummyKeydown = true;
		}

		switch (keycode) {
			case keyCode.HOME:
				if (modifier == undefined) {
					var pos = $.caret(this);
					$.caret(this, 0);
					break;
				}
			case keyCode.END:
				if (modifier == undefined) {
					var pos = $.caret(this);
					$.caret(this, elem.value.length);
					break;
				}
			case keyCode.LEFT:
				if (modifier == undefined) {
					var pos = $.caret(this);
					$.caret(this, pos.begin - 1);
					break;
				}
			case keyCode.RIGHT:
				if (modifier == undefined) {
					var pos = $.caret(this);
					$.caret(this, pos.end + 1);
					break;
				}
			default:
				if ((window.Inputmask && window.Inputmask.prototype.defaults.inputEventOnly === true) ||
					(elem.inputmask && elem.inputmask.opts.inputEventOnly === true)) {
					var input = new $.Event("input"),
						currentValue = (elem.inputmask && elem.inputmask.__valueGet) ? elem.inputmask.__valueGet.call(elem) : elem.value,
						caretPos = $.caret(elem), caretOffset = 0;

					// console.log("initial " + currentValue);
					// console.log(caretPos);

					var front = currentValue.substring(0, caretPos.begin),
						back = currentValue.substring(caretPos.end),
						newValue = currentValue;

					switch (keycode) {
						case keyCode.BACKSPACE:
							if (caretPos.begin === caretPos.end) {
								front = front.substr(0, front.length - 1);
							}
							newValue = front + back;
							break;
						case keyCode.DELETE:
							if (origCode !== ".") {
								if (caretPos.begin === caretPos.end) {
									back = back.slice(1);
								}
								newValue = front + back;
								break;
							}
						default:
							newValue = front + String.fromCharCode(keycode) + back;
							caretOffset = front.length > 0 ? 1 : 0;
							break;
					}

					if (elem.inputmask && elem.inputmask.__valueSet) {
						elem.inputmask.__valueSet.call(elem, newValue);
					} else {
						elem.value = newValue;
					}
					$.caret(elem, (newValue.length - back.length));
					trigger(elem, input);
				} else {
					var keydown = new $.Event("keydown"),
						keypress = new $.Event("keypress"),
						keyup = new $.Event("keyup");

					if (!sendDummyKeydown) {
						keydown.keyCode = keycode;
						if (modifier == keyCode.CONTROL) {
							keydown.ctrlKey = true;
						}
					}
					trigger(elem, keydown);
					if (!keydown.defaultPrevented) {
						keypress.keyCode = keycode;
						if (modifier == keyCode.CONTROL) {
							keypress.ctrlKey = true;
						}
						trigger(elem, keypress);
						//if (!keypress.isDefaultPrevented()) {
						keyup.keyCode = keycode;
						if (modifier == keyCode.CONTROL) {
							keyup.ctrlKey = true;
						}
						trigger(elem, keyup);
						//}
					}
				}
		}
	};
	if (!("append" in $.fn)) {
		$.fn.append = function (child) {
			var input = this.nodeName ? this : this[0];
			input.insertAdjacentHTML("beforeend", child);
		};
	}
	if (!("remove" in $.fn)) {
		$.fn.remove = function () {
			var input = this.nodeName ? this : this[0];
			if (input !== undefined && input !== null) {
				input.parentElement.removeChild(input);
				input = undefined;
			}
		};
	}
	if (!("val" in $.fn)) {
		$.fn.val = function (value) {
			var input = this.nodeName ? this : this[0];
			if (value !== undefined) {
				if (input.inputmask) {
					input.inputmask._valueSet(value, true);
					$(input).trigger("setvalue");
				} else {
					input.value = value;
				}
			}

			return input.value;
		};
	}

	$.fn.Type = function (inputStr) {
		var input = this.nodeName ? this : this[0],
			$input = $(input);
		$.each(inputStr.split(""), function (ndx, lmnt) {
			$input.SendKey(lmnt);
		});
	};

	$.fn.paste = function (inputStr) {
		var input = this.nodeName ? this : this[0],
			$input = $(input);
		if (window.clipboardData) {
			window.clipboardData.setData("Text", inputStr);
		} else {
			$.data($input, "clipboard", inputStr);
			window.clipboardData = {
				getData: function () {
					window.clipboardData = undefined;
					return $.data($input, "clipboard");
				}
			};
		}

		$input.trigger("paste");
	};

	$.fn.input = function (inputStr, caretBegin, caretEnd) {
		var input = this.nodeName ? this : this[0];
		input.inputmask.__valueSet.call(input, inputStr);
		if (caretBegin !== undefined) {
			$.caret(input, caretBegin, caretEnd);
		}
		$(input).trigger("input");
	};
}
