//
// Create readable table with scope changes of a JIRA Version/Release/Fix Version
// The existing graph is nice, but hard to read the details
//
// Known bug: you have to refresh the page after first load and after selecting another version in the dropdown
//
// get parameters from url
let searchParams = new URLSearchParams(window.location.search)
let versionId = searchParams.get('version')
let rapidViewId = searchParams.get('rapidView')

// Get numerical part of issuekey
// Split issuekey at dash (-). So ABC-123 becomes ABC and Id 123 and returns Id 
function GetIdOfIssueKey(issuekey) {
	aIssueKeyParts = issuekey.split("-");
	return aIssueKeyParts[1];
}

$.getJSON( "../rest/greenhopper/1.0/rapid/charts/versionreport?rapidViewId=" + rapidViewId + "&versionId=" + versionId, function( data ) {
	
	// First gather some general data of all stories in selected Version
	var storyData = [];
	
	// get all information (title, SPs) of all incompleted issues
	var incompleteEstimatedIssues = data.contents.incompleteEstimatedIssues;
	$.each( incompleteEstimatedIssues, function( key, value ) {
		keyId = GetIdOfIssueKey(value.key); 
		storyData[keyId] = value.summary;
	});
	
	// get all information (title, SPs) of all completed issues
	var completedIssues = data.contents.completedIssues;
	//console.log(data.contents.completedIssues);
	$.each( completedIssues, function( key, value ) {
	keyId = GetIdOfIssueKey(value.key); 
		storyData[keyId] = value.summary;
	});

	// get all information (title, SPs) of all incompleteUnestimatedIssues issues
	var incompleteUnestimatedIssues = data.contents.incompleteUnestimatedIssues;
	$.each( incompleteUnestimatedIssues, function( key, value ) {
	keyId = GetIdOfIssueKey(value.key); 
		storyData[keyId] = value.summary;
	});
	
	// Then: get change-entries of Version
	GetChanges(storyData);
});


// does not work yet:  table needs up update if otheh Version is selected
$( "#ghx-dropdown-trigger, #ghx-chart-picker, #ghx-chart-picker-form, .ghx-controls" ).change(function() {
	console.log('change');
	alert('change');
	GetChanges(storyData);
});

/**
 * Get title of story and add it to html-element 
 * 
 */
function GetIssueInfo (storyId, rapidViewId, thisobj) {
	// get story information
	$.getJSON( "../rest/greenhopper/1.0/xboard/issue/details.json?rapidViewId=" + rapidViewId + "&issueIdOrKey=" + storyId, function( data ) {
		// get SPs
		if (data) {
			storySP = data.tabs.defaultTabs[0].fields[2].value;
			title = data.tabs.defaultTabs[0].fields[0].text + ' (' + storySP + ')';
			$(thisobj).text(title);
		}
	});
}

function GetChanges (storyData) {
		
		// get changes of Version
		$.getJSON( "../rest/greenhopper/1.0/rapid/charts/versionprogresschart?rapidViewId=" + rapidViewId + "&versionId=" + versionId, function( data ) {
			// get changes
			changes = data.changes;
			var lastDate, lastStoryKey, lastStoryTitle;
			var aaDateStory = {};
			var aLastKnownSp = {};
			var rows = "";
			var sub = '';
			var rowClass = '';
			var	filterLink = '';
				
			// loop all changes
			$.each( changes, function( key, value ) {
				filterLink = '';
				var changeEntry = value[0]; // make human readable
				keyId = parseInt(changeEntry.key.substr(4, 20));
			  
				var tskey = parseInt(key);
				var ts = new Date(tskey);
				//console.log(ts);
				var y = ts.getFullYear();
				
				var m =  ts.getMonth();
			    m += 1;  // JavaScript months are 0-11
			    if (m < 10) {
			        m = "0" + m;
			    }
			    
			    var d = ts.getDate();
				if (d < 10) {
			        d = "0" + d;
			    }
			    
			    var h = ts.getHours();
			    if (h < 10) {
			        h = "0" + h;
			    }
			    
			    var min = ts.getMinutes(); 
			    if (min < 10) {
			        min = "0" + min;
			    }
				
				date = y + "-"+ m + "-"+ d;
				time = h + ":"+ min ; // + ":"+ ts.getSeconds()
	
				var content = 0; // tracks if there is valuable content in this changeEntry
				var addedOrRemoved = '';
				if (changeEntry.added === true) {
					addedOrRemoved = 'added'; // added to this version
					content++;
				} else if (changeEntry.added === false)  {
					addedOrRemoved = 'removed '; //removed from this version
					content++;
				} else {
					addedOrRemoved = ''; // like: a changed story that was not added of removed
				}
				
				var spChange = '';
				var diff = '';
				var storyKey = changeEntry.key;
				
				// a change with statc filled has a changed amount of SP
				if (changeEntry.statC && Object.keys(changeEntry.statC).length > 0) {
					var old;
					var iDiff;
					
					var newSP;
					var sign = "";
					if (changeEntry.statC.newValue) {
						newSP = changeEntry.statC.newValue;
						aLastKnownSp[storyKey] = newSP;
						diff = "(+" + newSP + ")";
					} else {
						// items witout a statC.newValue can be skipped
						return true;
					}
					
					//console.log(value[0].statC);
					// 
					if (changeEntry.statC.oldValue) {
						old = changeEntry.statC.oldValue;
						iDiff = changeEntry.statC.newValue - changeEntry.statC.oldValue;
						if (iDiff > 0 ) {
							sign = '+';
						} 
						diff = "(" + sign + iDiff + ")";
						
					} else {
						old = "-";
					}
					

					spChange = '<span class="vrp-oldSP">' + old + '</span>&nbsp;<span class="vrp-SPdivider">-></span>&nbsp;<span class="vrp-newSP">' + newSP + '</span>';
					content++;
				} else  {
					if (aLastKnownSp[storyKey]) {
						spChange = '<span class="vrp-oldSP">' + aLastKnownSp[storyKey] + '</span>';
					} else {
						spChange = '&nbsp;';
					}
				}
				
				// skip if not usefull content, like ????
				if (content == 0) return true;

				storyTitle = storyData[keyId];
				
				var storyKeyDisp, storyTitleDisp, dateDisp;
				
			
				
				// hide showing date if its the same date as previous change
				if (lastDate == date) {
					dateDisp = '<span class="vrp-hideData">' + date + '</span>';
				} else {
					dateDisp = date;
				}
				// hide showing storyKey if its the same story as previous change
				if (lastStoryKey == storyKey) {
					storyKeyDisp = '<span class="vrp-hideData">' + storyKey + '</span>';
					
				} else {
					storyKeyDisp = '<a href="/jira/browse/' + changeEntry.key + '">' + storyKey + '</a>';
					filterLink =  ' <span class="vrp-populateSearch" data-keyid="' + changeEntry.key + '">+</span>';
				}
				
				sub = false;
				rowClass = '';
				if (lastStoryKey == storyKey && lastDate == date) {
					sub = true;
					rowClass = 'class="vrp-subentry"'
					//time = '';
				}
				
				// hide title if the same as previous row
				if (lastStoryTitle == storyTitle) {
					storyTitleDisp = '-';
				
				// n/a if title is unavilable (like when issue is currently not part of Version)
				} else if (!storyTitle) {
					storyTitleDisp = '<span data-keyid="' + changeEntry.key + '" class="vrp-nadata">n/a (click to load)</span>';
				}	else {
					storyTitleDisp = storyTitle;
				}
				
				// build table
				rows += '<tr ' + rowClass + '><td>'  + dateDisp + '</td><td>'  + time + '</td><td>' + addedOrRemoved + '</td><td>' + spChange + '<span class="vrp-SPdiff">' + diff +  '</span></td><td>' + storyKeyDisp + filterLink + '</td><td>' +  storyTitleDisp + '</td>'  /*+ '<td>'+ JSON.stringify(value[0].statC)+'</td>'*/+'</tr>';
					 
				
				// try to combine changes of same story with same minute (like: an add + a SP change)
				if (keyId < 10000){
					sKeyId = "0"+ keyId;
				} else {
					sKeyId = keyId;
				}
				var sArrayKey = y+""+m+""+d+""+sKeyId; // y+""+m+""+d+""+h+""+min+""+keyId;
				var arrayKey = sArrayKey.toString();
			
				// Story all data in one big array to be processed later for merging/combining data
				if (!aaDateStory[arrayKey]) aaDateStory[arrayKey] = {};
				if (!aaDateStory[arrayKey].combined) aaDateStory[arrayKey].combined = 0;
				aaDateStory[arrayKey].date = date;
				aaDateStory[arrayKey].time = time;
				aaDateStory[arrayKey].storyKey = storyKey;
				aaDateStory[arrayKey].title = storyTitle;
				aaDateStory[arrayKey].combined++; // count how much events are combined to one
				
				if (changeEntry.added) aaDateStory[arrayKey].addedOrRemoved = addedOrRemoved;
				
				if (value[0].statC) {
					if (changeEntry.statC.newValue) {
						aaDateStory[arrayKey].newValue = changeEntry.statC.newValue;
						// if newValue but no oldValue: oldValue is 0
						if (!changeEntry.statC.oldValue) {
							changeEntry.statC.oldValue = "0";
							aaDateStory[arrayKey].oldValue = "0";
						}
					}
					
					// keep first oldValue: dont overwrite with new oldValue: 2->5 + 5->3 should be 2-> 4
					if (changeEntry.statC.oldValue && aaDateStory[arrayKey].oldValue != "") {
						aaDateStory[arrayKey].oldValue = changeEntry.statC.oldValue;
					}
				}
				
				
				lastStoryKey = storyKey;
				if (storyTitle) {
					lastStoryTitle = storyTitle;
				} else {
					lastStoryTitle = Math.random();
				}
				lastDate = date;

				// <td>' + JSON.stringify(value[0].statC) +  '</td>
			});
			/*console.log(aaDateStory);
			rows += '<tr><th colspan="5">----</th></tr>';
			

			$.each( aaDateStory, function( key, value ) {
				
			
				if (!value) return true;
				
				if (value.oldValue) {
					oldValueDisp = value.oldValue; 
				} else {
					oldValueDisp = "";
				}
				if (value.newValue) {
					newValueDisp = value.newValue; 
				} else {
					newValueDisp = "";
				}
				if (value.addedOrRemoved) {
					addedOrRemovedDisp = value.addedOrRemoved; 
				} else {
					addedOrRemovedDisp = "";
				}
				rows += '<tr><td title="'  + key + '">'  + value.date + '</td><td>'  + value.time + '</td><td>' + addedOrRemovedDisp + '</td><td>' + oldValueDisp +  '</td><td>' + newValueDisp +  '</td><td><a href="/jira/browse/' +  value.storyKey + '">' +  value.storyKey + '</a></td><td>' + value.title +  '</td><td>'  + value.combined + 'x</td></tr>';
			});*/
			
			var headerrow = '<tr><th>Date</th><th>Time</th><th>Add/Rem.</th><th >SP change</th><th>Key</th><th>Summary</th></tr>';
			$("#ghx-report-content").prepend('<input class="text vrp-search" type="text" placeholder="Search.."><table class="aui vrp-table">' + headerrow + rows + '</table>');
	
			// Add Search/filter
			  $(".vrp-search").on("keyup", function() {
			    //$(".vrp-search").width("600px");
			    var value = $(this).val().toLowerCase();
			    $(".vrp-table tr").filter(function() {
			      $(this).toggle($(this).text().toLowerCase().indexOf(value) > -1)
			    });
			  });
			  
			  // Insert Issuekey in Search/filter
			  $(".vrp-populateSearch").on("click", function() {
				keyid = $(this).data('keyid');
				$(".vrp-search").val(keyid).focus().click().keyup();

			  });			  
			  // Get title 
			  $(".vrp-nadata").on("click", function() {
				$(this).text('loading title...');
				keyid = $(this).data('keyid');
				GetIssueInfo(keyid, rapidViewId, this);
			  });
		});
}