_pageDriverVersion = '1.0.1';

// Handle color for icon svg with id="logo" based on the current theme
const logo = document.getElementById('logo');
if (logo) {
	logo.style.fill = getComputedStyle(document.documentElement).getPropertyValue('--bulma-text');
}

if (_wrapperVersion === undefined) {
	console.error('API Wrapper not found; Please include the API Wrapper before including the Page Driver');
	exit();
} else {
	console.log('API Wrapper found; Page Driver is ready to use');
}

// Find all tables on the page which have data-dataSource attribute
var tables = document.querySelectorAll('table[data-dataSource]');
//var tables = []

// Get all single values with data-dataSource, data-dataCol and data-dataAction
var singleValues = document.querySelectorAll('span[data-dataSource]');

// Find all search fields with data-searchTargetId
var searchFields = document.querySelectorAll('input[data-searchTargetId]');

// Find all modalForms
var modalForms = document.querySelectorAll('form[data-targetTable]');

// Iterate over all tables
tables.forEach(async (table) => {
	console.log('Table found: ', table);
	// Get THEAD and TBODY elements
	const thead = table.querySelector('thead');
	const tbody = table.querySelector('tbody');

	// get index per column
	const columns = thead.querySelectorAll('th');
	const columnIndices = [];
	columns.forEach((column, index) => {
		columnIndices[column.getAttribute('data-dataCol')] = index;
	});

	// All required cols
	let requiredCols = [];
	columns.forEach((column) => {
		requiredCols.push(column.getAttribute('data-dataCol'));
	});
	console.log('Required columns: ', requiredCols);

	// Get data from API
	//let result = getRowsByTableAndColumnList(table.getAttribute("data-dataSource"), requiredCols);
	let result = await returnTableDataByTableName(table.getAttribute('data-dataSource'));
	// for (resultIndex in result) {
	// 	const row = result[resultIndex];
	// 	const tr = document.createElement("tr");
	// 	requiredCols.forEach(column => {
	// 		const td = document.createElement("td");
	// 		td.innerHTML = row[column];
	// 		tr.appendChild(td);
	// 	});
	// 	tbody.appendChild(tr);
	// }
	writeDataToTable(table, result);

	console.log('Column indices: ', columnIndices);
});

console.info('Processing single values');
console.info(singleValues);

// Iterate over all single values
singleValues.forEach(async (singleValue) => {
	writeSingelton(singleValue);
});

async function writeSingelton(element) {
	const table = element.getAttribute('data-dataSource');
	console.log('Table: ', table, ' Action: ', element.getAttribute('data-dataAction'), ' Element: ', element);
	switch (element.getAttribute('data-dataAction')) {
		case 'COUNT': {
			console.log('Count action found');
			element.innerHTML = await getCountByTable(table);
			break;
		}
		case 'SPECIAL': {
			if (table == 'version') {
				element.innerHTML = (await getServerVersion())['version'];
				break;
			}
		}
		default: {
			console.error('Unknown action found: ', element.getAttribute('data-dataAction'));
			break;
		}
	}

	element.classList.remove('is-skeleton');
}

// Attach listeners to search fields
searchFields.forEach((searchField) => {
	// Apply restrictions to search field (min, max, chars, etc)

	getApiDescriptionByTable(document.getElementById(searchField.getAttribute('data-searchTargetId')).getAttribute('data-dataSource')).then((desc) => {
		desc = desc['GET']['keys']['search'];
		var rules = desc['rules'];
		rules.forEach((rule) => {
			switch (rule['name']) {
				case 'min': {
					searchField.setAttribute('minlength', rule['args']['limit']);
					break;
				}
				case 'max': {
					searchField.setAttribute('maxlength', rule['args']['limit']);
					break;
				}
			}
		});
	});
	searchField.addEventListener('input', async function () {
		console.log('Search field changed: ', searchField);
		if (searchField.checkValidity() == false) {
			console.log('Invalid input');
			searchField.classList.add('is-danger');
			return;
		} else {
			searchField.classList.remove('is-danger');
			const targetId = searchField.getAttribute('data-searchTargetId');
			const target = document.getElementById(targetId);
			const table = target.getAttribute('data-dataSource');
			const column = target.getAttribute('data-dataCol');
			const value = searchField.value;
			console.log('Searching for ', value, ' in ', table, ' column ', column);
			//const result = await returnTableDataByTableNameWithSearch(table, value);
			//clearTable(target);
			//writeDataToTable(target, result);
			refreshTableByName(table);
		}
	});
});

// Attach listeners to modal forms
modalForms.forEach((modalForm) => {
	// Add validation to form by using API description (everything is assumed POST for now)
	modalForm.addEventListener('input', async function (event) {
		if (event.target.checkValidity() == false) {
			modalForm.querySelector("input[type='submit']").setAttribute('disabled', true);
			event.target.classList.add('is-danger');
			return;
		} else {
			modalForm.querySelector("input[type='submit']").removeAttribute('disabled');
			event.target.classList.remove('is-danger');
		}
	});
	getApiDescriptionByTable(modalForm.getAttribute('data-targetTable')).then((desc) => {
		console.log('Description: ', desc);
		const keys = desc['POST']['keys'];
		// Apply resitrictions and types to form fields
		for (key in keys) {
			const field = modalForm.querySelector("input[name='" + key + "']");
			if (field) {
				const rules = keys[key]['rules'];
				const flags = keys[key]['flags'];
				console.log('Field: ', field, ' Rules: ', rules, ' Flags: ', flags);
				rules.forEach((rule) => {
					switch (rule['name']) {
						case 'min': {
							field.setAttribute('minlength', rule['args']['limit']);
							break;
						}
						case 'max': {
							field.setAttribute('maxlength', rule['args']['limit']);
							break;
						}
						case 'pattern': {
							field.setAttribute('pattern', rule['args']['regex'].substring(1, rule['args']['regex'].length - 1));
							//field.setAttribute("pattern", "^[\\+]?[\\(]?[0-9]{3}[\\)]?[\\-\\s\\.]?[0-9]{3}[\\-\\s\\.]?[0-9]{4,9}$");
							break;
						}
						case 'type': {
							//field.setAttribute("type", rule["args"]["type"]);
							console.log('Type: ', rule['args']['type']);
							break;
						}
					}
				});
				if (flags) {
					flags['presence'] == 'required' ? field.setAttribute('required', true) : field.removeAttribute('required');
				}
			}
		}
		console.log('Keys: ', keys);
	});

	modalForm.addEventListener('submit', async function (event) {
		event.preventDefault();
		// Check what button submitted the form and if it has data-actionBtn = save
		// If not, close modal
		const pressedBtn = event.submitter;
		if (pressedBtn.getAttribute('data-actionBtn') != 'save') {
			modalForm.closest('.modal').classList.remove('is-active');
			return;
		}

		// Find .entryPhase and hide it
		const entryPhase = modalForm.querySelector('.entryPhase');
		const loadPhase = modalForm.querySelector('.loadPhase');
		if (entryPhase) {
			entryPhase.classList.add('is-hidden');
		}
		if (loadPhase) {
			loadPhase.classList.remove('is-hidden');
		}
		console.log('Form submitted: ', modalForm);
		const table = modalForm.getAttribute('data-targetTable');
		const data = new FormData(modalForm);
		// Convert to JSON object
		let jsonData = {};
		data.forEach((value, key) => {
			jsonData[key] = value;
		});
		console.log('JSON Data: ', jsonData);
		let resp = await createEntry(table, jsonData);
		console.log('Response: ', resp);
		if (resp['status'] == 'CREATED') {
			console.log('Entry created successfully');
			modalForm.closest('.modal').classList.remove('is-active');
			modalForm.reset();
			// Hide loadPhase
			if (loadPhase) {
				loadPhase.classList.add('is-hidden');
			}
			// Show entryPhase
			if (entryPhase) {
				entryPhase.classList.remove('is-hidden');
			}
		} else {
			// Hide loadPhase
			if (loadPhase) {
				loadPhase.classList.add('is-hidden');
			}
			// Show entryPhase
			if (entryPhase) {
				entryPhase.classList.remove('is-hidden');
			}
			// TODO: Show error message
		}

		// const target = document.getElementById(table);
		// writeDataToTable(target, result);

		// Find all tables with data-searchTargetId set to table
		setTimeout(() => {
			refreshTableByName(table);
			updateSingeltonsByTableName(table);
		}, 500);
	});
});

// Helper
async function refreshTable(table) {
	// Refresh a table while keeping (optionally set) search value
	const searchField = document.querySelector("input[data-searchTargetId='" + table.id + "']");
	if (searchField && searchField.value != '') {
		const value = searchField.value;
		const dbTable = table.getAttribute('data-dataSource');
		const result = await returnTableDataByTableNameWithSearch(dbTable, value);
		clearTable(table);
		writeDataToTable(table, result);
	} else {
		const result = await returnTableDataByTableName(table.getAttribute('data-dataSource'));
		clearTable(table);
		writeDataToTable(table, result);
	}
}

async function refreshTableByName(name) {
	const dirtyTables = document.querySelectorAll("table[data-dataSource='" + name + "']");
	for (dirty of dirtyTables) {
		refreshTable(dirty);
	}
}

async function updateSingeltonsByTableName(name) {
	const dirtySingles = document.querySelectorAll("span[data-dataSource='" + name + "']");
	for (dirty of dirtySingles) {
		writeSingelton(dirty);
	}
}

function clearTable(table) {
	const tbody = table.querySelector('tbody');
	tbody.innerHTML = '';
}

function writeDataToTable(table, data) {
	console.log('Writing data to table: ', table, data);
	// Get THEAD and TBODY elements
	const thead = table.querySelector('thead');
	const tbody = table.querySelector('tbody');

	// get index per column
	const columns = thead.querySelectorAll('th');
	const columnIndices = [];
	columns.forEach((column, index) => {
		columnIndices[column.getAttribute('data-dataCol')] = index;
	});

	// All required cols
	let requiredCols = [];
	columns.forEach((column) => {
		requiredCols.push(column.getAttribute('data-dataCol'));
	});

	for (resultIndex in data) {
		const row = data[resultIndex];
		const tr = document.createElement('tr');
		requiredCols.forEach((column) => {
			const td = document.createElement('td');
			td.innerHTML = row[column];
			tr.appendChild(td);
		});
		tbody.appendChild(tr);
	}
}

// Handle modal
document.addEventListener('DOMContentLoaded', () => {
	// Functions to open and close a modal
	function openModal($el) {
		$el.classList.add('is-active');
	}

	function closeModal($el) {
		$el.classList.remove('is-active');
	}

	function closeAllModals() {
		(document.querySelectorAll('.modal') || []).forEach(($modal) => {
			closeModal($modal);
		});
	}

	// Add a click event on buttons to open a specific modal
	(document.querySelectorAll('.js-modal-trigger') || []).forEach(($trigger) => {
		const modal = $trigger.dataset.target;
		const $target = document.getElementById(modal);

		$trigger.addEventListener('click', () => {
			openModal($target);
		});
	});

	// Add a click event on various child elements to close the parent modal
	(document.querySelectorAll('.modal-close, .modal-card-head .delete, .modal-card-foot .button') || []).forEach(($close) => {
		const $target = $close.closest('.modal');

		$close.addEventListener('click', () => {
			closeModal($target);
		});
	});

	// Add a keyboard event to close all modals
	document.addEventListener('keydown', (event) => {
		if (event.key === 'Escape') {
			closeAllModals();
		}
	});
});