/* ***************** LCS DB GRID FUNCTIONS ******************** */

$.fn.scrollStopped = function(callback) {
  var that = this, $this = $(that);
  $this.scroll(function(ev) {
	clearTimeout($this.data('scrollTimeout'));
	$this.data('scrollTimeout', setTimeout(callback.bind(that), 250, ev));
  });
};

var ar_lcs_db_load = [];
var ar_lcs_db_loaded = [];
var lcs_db_keep_alive_interval;
var lcs_db_resizing = false;
var lcs_db_resize_col_class;
var lcs_db_resize_orig_width;
var lcs_db_resize_new_width;
var lcs_db_resize_mouse_x_start;
var lcs_db_resize_mouse_x_end;
var lcs_currentMousePos = { x: -1, y: -1 };
var lcs_db_resize_grid_id;
var lcs_db_multi_filter = [];

$(document).mousemove(function(event) {
	lcs_currentMousePos.x = event.pageX;
	lcs_currentMousePos.y = event.pageY;
});

function lcs_scrolled_into_view(elem, parent_elem) {
	var $elem = $(elem);
	var $window = $(parent_elem);

	var docViewTop = $window.scrollTop();
	var docViewBottom = docViewTop + $window.height();

	var elemTop = $elem.offset().top;
	var elemBottom = elemTop + $elem.height();

	return ((elemBottom <= docViewBottom) && (elemTop >= docViewTop));
}

function lcs_scrolled_past_view(elem, parent_elem) {
	var $elem = $(elem);
	var $window = $(parent_elem);

	var docViewTop = $window.scrollTop();
	var docViewBottom = docViewTop + $window.height();

	var elemTop = $elem.offset().top;
	var elemBottom = elemTop + $elem.height();

	return (elemTop >= docViewTop);
}

function lcs_db_scrollbar_width() {
	var $outer = $('<div>').css({visibility: 'hidden', width: 100, overflow: 'scroll'}).appendTo('body'),
		widthWithScroll = $('<div>').css({width: '100%'}).appendTo($outer).outerWidth();
	$outer.remove();
	return 100 - widthWithScroll;
}

function lcs_db_cell_spacing() {
	var $p = $('<div class="lcs_dbg_cell_spacer"></div>').hide().appendTo("body");
	var spacer_width = parseInt($p.css("width"));
	$p.remove();
	return spacer_width;
}

function lcs_db_adjust_sapcer_height(div) {
	var h = $('#' + div + ' .lcs_dbg_row').first().height();
	$('.lcs_dbg_cell_spacer').height(h);
}

function lcs_db_toggle_filter(div, call, func, ix_form, sort_col, sort_order, search_str, parm1, parm2, parm3, filter_cols, multi_filter, filter_index, callback, lazy_callback) {
	//alert('toggle');
	var ar_filter_cols = filter_cols.split(',');
	if (ar_filter_cols[filter_index - 1] == 1) {
		ar_filter_cols[filter_index - 1] = 0;
	} else {
		ar_filter_cols[filter_index - 1] = 1;
	}
	filter_cols = ar_filter_cols.join(',');
	lcs_db_load(div, call, func, ix_form, sort_col, sort_order, search_str, parm1, parm2, parm3, filter_cols, multi_filter, callback, lazy_callback);
}

function lcs_db_multi_filter_open(popup_div_id) {
	//alert('toggle');
	$('#' + popup_div_id).show();
}

function lcs_db_multi_filter_close(popup_div_id) {
	$('#' + popup_div_id).hide();
}

function lcs_db_multi_filter_clear(popup_div_id) {
	$('#' + popup_div_id + ' input:checkbox').removeAttr('checked');
}

function lcs_db_multi_filter_apply(key, popup_div_id, div, call, func, ix_form, sort_col, sort_order, search_str, parm1, parm2, parm3, filter_cols, filter_index, callback = null, lazy_callback = null) {
	//alert('toggle');
	/*
	var ar_filter_cols = filter_cols.split(',');
	if (ar_filter_cols[filter_index - 1] == 1) {
		ar_filter_cols[filter_index - 1] = 0;
	} else {
		ar_filter_cols[filter_index - 1] = 1;
	}
	filter_cols = ar_filter_cols.join(',');
	*/
	if (typeof lcs_db_multi_filter[div] === 'undefined') {
		lcs_db_multi_filter[div] = [];
	}
	lcs_db_multi_filter[div][key] = [];
	$('#' + popup_div_id + ' input:checkbox:checked').each(function(){
		lcs_db_multi_filter[div][key].push($(this).val());
	});
	lcs_db_multi_filter_close(popup_div_id);
	lcs_db_load(div, call, func, ix_form, sort_col, sort_order, search_str, parm1, parm2, parm3, filter_cols, lcs_db_multi_filter[div], callback, lazy_callback);
}

function lcs_db_load(div, call, func, ix_form, sort_col, sort_order, search_str, parm1, parm2, parm3, filter_cols, multi_filter=[], callback = null, lazy_callback = null) {
	//console.log('lcs_db_resizing: ' + lcs_db_resizing);
	if (lcs_db_resizing) {
		return;
	}
	sort_col = sort_col || 0;
	sort_order = sort_order || 0;
	search_str = search_str || '';
	filter_cols = filter_cols || '';
	callback = callback || null;
	lazy_callback = lazy_callback || null;
	if (typeof window[div + '_uid'] === 'undefined') {
		window[div + '_uid'] = '0';
	}
	$.ajax({
		url: "ajax.php?div=" + div + "&call=" + call + "&func=" + func + "&ix_form=" + encodeURIComponent(ix_form) + "&scrollbar_width=" + lcs_db_scrollbar_width() + 
			"&spacer_width=" + lcs_db_cell_spacing() + "&sort_col=" + sort_col + "&sort_order=" + sort_order + "&search_str=" + search_str +
			"&parm1=" + encodeURIComponent(parm1) + "&parm2=" + encodeURIComponent(parm2) + "&parm3=" + encodeURIComponent(parm3) + "&filter_cols=" + filter_cols + "&callback=" + encodeURIComponent(callback) + "&lazy_callback=" + encodeURIComponent(lazy_callback) + "&old_uid=" + window[div + '_uid'] + "&multi_filter=" + encodeURIComponent(JSON.stringify(multi_filter)),
		cache: false,
		dataType: "json",
		success: function(json) {
			//alert('html characters: ' + json.html.length);
			$('#' + div + '_total_count').text(json.row_count);
			$('#' + div + '_extra_data').text(json.extra_data);
			window[div + '_xls_sql'] = json.xls_sql;
			$('#' + div).html(json.html);
			/*
			$('.resizable').resizable({
				handles: "n, e, s, w"
			});
			*/
			//lcs_db_adjust_sapcer_height(div);
			//alert(json.xls_sql);
			//alert(json.xls_sql);
			//alert(json.html);
			//alert(window[div + '_uid']);
			//alert(window[div + '_load_method']);
			if (window[div + '_load_method'] == 'lazy2' || window[div + '_load_method'] == 'lazy3') {
				window[div + '_scroll_top'] = $('#lcs_dbg_data_' + window[div + '_uid']).scrollTop();
				if (window[div + '_load_method'] == 'lazy2') {
					lcs_db_lazy_load2(window[div + '_uid'], div, lazy_callback);
				} else if (window[div + '_load_method'] == 'lazy3') {
					clearInterval(lcs_db_keep_alive_interval);
					lcs_db_lazy_load3(window[div + '_uid'], div, false, lazy_callback);
					lcs_db_keep_alive_interval = setInterval(lcs_db_keep_alive, 60000, window[div + '_uid'], div);
				}
				$('#lcs_dbg_data_wrapper_' + window[div + '_uid']).scrollStopped(function () { 
					if ($('#lcs_dbg_data_wrapper_' + window[div + '_uid']).scrollTop() > ($('#lcs_dbg_data_wrapper_' + window[div + '_uid'])[0].scrollHeight - $('#lcs_dbg_data_wrapper_' + window[div + '_uid']).height() * 2) ) {
						window[div + '_scroll_top'] = $('#lcs_dbg_data_wrapper_' + window[div + '_uid']).scrollTop();
						$('.lcs_appear').each(function() {
							if (window[div + '_load_method'] == 'lazy2') {
								lcs_db_lazy_load2(window[div + '_uid'], div, lazy_callback);
							} else if (window[div + '_load_method'] == 'lazy3') {
								lcs_db_lazy_load3(window[div + '_uid'], div, true, lazy_callback);
							}
							$(this).removeClass('lcs_appear');
						});
					}
				});
			}
		}
		,error: function (request, status, error) { alert(status + ", " + error + " Response: " + request.responseText); }
	});
}

function lcs_db_scroll(uid, div) {
	//alert($('#lcs_dbg_header_' + uid).scrollLeft());
	$('#lcs_dbg_header_' + uid).scrollLeft($('#lcs_dbg_data_' + uid).scrollLeft());
}

function lcs_db_search() {
	$('#' + table_id + '_strSearch').on( 'keyup', function () {
		if (this.value > ' ') {
			$('#' + table_id + '_strSearch').removeClass('search');
			$('#' + table_id + '_strSearch').addClass('search_cancel');
			$('#' + table_id + '_search_box a').show();
		} else {
			$('#' + table_id + '_strSearch').removeClass('search_cancel');
			$('#' + table_id + '_strSearch').addClass('search');
			$('#' + table_id + '_search_box a').hide();
		}
	} );
}

function lcs_db_lazy_load1(i, imax, uid, div, lazy_callback) {
	if (i > imax) {
		return;
	}
	$("#lcs_dbg_data_" + uid).append(window[div + '_ar_blocks'][i]);
	if (lazy_callback) {
		lazy_callback();
	}

	i = i + 1;
	setTimeout(function() { lcs_db_lazy_load1(i, imax, uid, div, lazy_callback) }, 200);
}

function lcs_db_lazy_load2(uid, div, lazy_callback) {
	if (window[div + '_current_block'] > window[div + '_block_count']) {
		return;
	}
	$('div#lcs_db_loading').show();
	$("#lcs_dbg_data_" + uid).append(window[div + '_ar_blocks'][window[div + '_current_block']]);
	window[div + '_current_block'] = window[div + '_current_block'] + 1;
	if (lazy_callback) {
		lazy_callback();
	}
	$('div#lcs_db_loading').hide();
}

function lcs_db_lazy_load3(uid, div, load_async, lazy_callback = null) {
	if (window[div + '_current_block'] > window[div + '_block_count']) {
		return;
	}
	$('div#lcs_db_loading').show();
	$.ajax({
		url: "ajax.php?call=lcs_db_grid_ajax&func=load_block&uid=" + uid + "&block=" + window[div + '_current_block'],
		cache: false,
		async: load_async,
		dataType: "json",
		success: function(json) {
			//alert(json.html);
			$("#lcs_dbg_data_" + uid).append(json.html);
			window[div + '_current_block'] = window[div + '_current_block'] + 1;
			if (lazy_callback) {
				lazy_callback();
			}
			$('div#lcs_db_loading').hide();
		}
		,error: function (request, status, error) { 
			$('div#lcs_db_loading').hide();
			alert(status + ", " + error + " Response: " + request.responseText);
		}
	});
}

function lcs_db_keep_alive(uid, div) {
	//console.log('lcs_db_keep_alive');
	$.ajax({
		url: "ajax.php?call=lcs_db_grid_ajax&func=keep_alive&uid=" + uid + "&bypass_session_timeout=true",
		cache: false,
		dataType: "text",
		success: function(text) {
			//$('#' + div + '_diag').text(text);
		}
		,error: function (request, status, error) { alert(status + ", " + error + " Response: " + request.responseText); }
	});
}

function lcs_db_col_resize_start(col_class, elem, grid_id) {
	//console.log('start ' + col_class + ' grid: ' + grid_id);
	lcs_db_resizing = true;
	lcs_db_resize_orig_width = parseInt($(elem).parent().css('width'));
	//console.log('orig width ' + lcs_db_resize_orig_width);
	lcs_db_resize_mouse_x_start = lcs_currentMousePos.x;
	lcs_db_resize_col_class = col_class;
	lcs_db_resize_grid_id = grid_id;
	$('#lcs_dbg_resizer_guide_' + lcs_db_resize_grid_id).css('left', (lcs_currentMousePos.x - 1) + 'px');
	$('#lcs_dbg_resizer_guide_' + grid_id).show();
	$('*').addClass('lcs_resize_cursor');
	$('body').mouseup(function() {
		if (lcs_db_resizing) {
			lcs_db_col_resize_stop();
		}
	});
	$('body').mousemove(function() {
		if (lcs_db_resizing) {
			lcs_db_col_resize_move();
		}
	});
}

function lcs_db_col_resize_stop() {
	//console.log('stop');
	//$('.' + lcs_db_resize_col_class).css('width', '75px');
	$('#lcs_dbg_resizer_guide_' + lcs_db_resize_grid_id).hide();
	$('*').removeClass('lcs_resize_cursor');
	lcs_db_resize_mouse_x_end = lcs_currentMousePos.x;
	var mouse_travel = lcs_db_resize_mouse_x_end - lcs_db_resize_mouse_x_start;
	lcs_db_resize_new_width = lcs_db_resize_orig_width + mouse_travel;
	if (lcs_db_resize_new_width < 25) {
		lcs_db_resize_new_width = 25;
	}
	if (lcs_db_resize_new_width > 1000) {
		lcs_db_resize_new_width = 1000;
	}
	$('head').append('<style type="text/css">div.' + lcs_db_resize_col_class + '{width:' + lcs_db_resize_new_width + 'px;}</style>');
	setTimeout(function() {
		lcs_db_resize_col_class = '';
		lcs_db_resizing = false;
	}, 500);
}

function lcs_db_col_resize_move() {
	//console.log('moving');
	$('#lcs_dbg_resizer_guide_' + lcs_db_resize_grid_id).css('left', (lcs_currentMousePos.x - 1) + 'px');
}

function lcs_db_grid_reload(grid) {
	//ar_lcs_db_load[grid]();
	//console.log(window[grid + "_search_str"]);
	var div = grid;
	var call = window[grid + "_call"];
	var func = window[grid + "_func"];
	var ix_form = window[grid + "_ix_form"];
	var sort_col = window[grid + "_sort_col"];
	var sort_order = window[grid + "_sort_order"];
	var search_str = window[grid + "_search_str"];
	var parm1 = window[grid + "_parm1"];
	var parm2 = window[grid + "_parm2"];
	var parm3 = window[grid + "_parm3"];
	var filter_cols = window[grid + "_filter_cols"];
	var multi_filter = window[grid + "_multi_filter"];
	var callback = window[grid + "_callback"];
	var lazy_callback = window[grid + "_lazy_callback"];
	lcs_db_load(div, call, func, ix_form, sort_col, sort_order, search_str, parm1, parm2, parm3, filter_cols, multi_filter, callback, lazy_callback);
}

$(document).ready(function() {
	/*
	console.log('DB Grid document ready');
	$('.resizable').resizable({
		handles: "n, e, s, w"
	});
	*/
});