1 files changed, 271 insertions, 0 deletions

diff --git a/assets/js/lopolisc.js b/assets/js/lopolisc.js
new file mode 100644
index 0000000..1f5291a
--- /dev/null
+++ b/assets/js/lopolisc.js
@@ -0,0 +1,271 @@
+function getStringBetween(string, start, end) {
+	return string.split(start).pop().split(end)[0];
+}
+
+const LOPOLIS_URL = "https://lopolis.gimb.tk/";
+const LOPOLISC_ERR_NET = "LOPOLSIC NETWORK ERROR (ajax error)";
+const	LOPOLISC_ERR_NET_POSTBACK_GET = "LOPOLISC NETWORK ERROR (ajax error) in postback GET"
+const LOPOLISC_ERR_NET_POSTBACK_POST = "LOPOLISC NETWORK ERROR (ajax error) in postback POST"
+const LOPOLISC_ERR_LOGIN = "LOPOLISC LOGIN ERROR";
+const LOPOLISC_ERR_CHECKOUTS = "LOPOLISC CHECKOUTS ERROR"
+const LOPOLISC_SIGNATURE = "lopolisc.js neuradni API - anton<at>sijanec.eu"
+
+class lopolisc {
+
+	constructor() {
+	}
+
+	parseAndPost(inputHTML, params, formId = null, useDiffAction = null) {
+		return new Promise((resolve, reject) => {
+			let parser = new DOMParser();
+			let parsed = parser.parseFromString(inputHTML, "text/html");
+
+			var form;
+			if (formId == null) {
+				form = parsed.getElementsByTagName("form")[0];
+			} else {
+				form = parsed.getElementById(formId);
+			}
+
+			var otherParams = $(form).serializeArray();
+			for (const input of otherParams) {
+				if (!(input.name in params)) {
+					params[input.name] = input.value; // so we don't overwrite existing values
+				}
+			}
+		
+			var action;
+			if (useDiffAction == null || useDiffAction == false) {
+				action = new URL($(form).attr("action"), LOPOLIS_URL); // absolute == relative + base
+			} else {
+				action = useDiffAction;
+			}
+
+			params["programska-oprema"] = LOPOLISC_SIGNATURE;
+			$.ajax({
+				xhrFields: {
+					withCredentials: true
+				},
+				crossDomain: true,
+				url: action,
+				cache: false,
+				type: "POST",
+				data: params,
+				dataType: "text",
+				success: (postData, textStatus, xhr) => {
+					resolve({data: postData, textStatus: textStatus, code: xhr.status});
+				},
+				error: () => {
+					reject(new Error(LOPOLISC_ERR_NET_POSTBACK_POST));
+				}
+			});
+		});
+	}
+
+	postback(getUrl, params = {}, formId = null, useDiffAction = null) {
+		return new Promise( (resolve, reject) => {
+			$.ajax({
+				xhrFields: {
+					withCredentials: true
+				},
+				crossDomain: true,
+				url: getUrl,
+				cache: false,
+				type: "GET",
+				dataType: "html",
+				success: (data) => {
+					if (useDiffAction == true) {
+						useDiffAction = getUrl;
+					}
+					this.parseAndPost(data, params, formId, useDiffAction).then((value) => {
+						resolve(value);
+					});
+				},
+				error: () => {
+					reject(new Error(LOPOLISC_ERR_NET_POSTBACK_GET));
+				}
+			});
+		});
+	}
+
+	login(usernameToLogin, passwordToLogin) {
+		return new Promise((resolve, reject) => {
+			var dataToSend = {
+				"Uporabnik": usernameToLogin,
+				"Geslo": passwordToLogin
+			};
+			this.postback(LOPOLIS_URL + "/Uporab/Prijava", dataToSend, null, true).then((response) => { // če je true, bo URL, če je false, bo action
+				let parser = new DOMParser();
+				let parsed = parser.parseFromString(response.data, "text/html");
+				if (parsed.getElementById("divPrijavaOsvezi") != null) {
+					resolve(true);
+				}
+				reject(new Error(LOPOLISC_ERR_LOGIN));
+			});
+		});
+	}
+
+	fetchCheckouts(date_object = new Date()) {
+		return new Promise((resolve) => {
+			var dataToSend = {
+				"MesecModel.Mesec": String(date_object.getMonth()),
+				"MesecModel.Leto": String(date_object.getFullYear()),
+				"Ukaz": ""
+			};
+			this.postback(LOPOLIS_URL+"/Prehrana/Odjava", dataToSend, "form1", true).then((response) => {
+				let parser = new DOMParser();
+				let parsed = parser.parseFromString(response.data, "text/html");
+				let checkouts = {};
+				for (const element of parsed.getElementsByTagName("tbody")[0].
+															getElementsByTagName("tr")) {
+					checkouts[element.getElementsByTagName("input")[2].value] = {
+						checked: element.getElementsByTagName("input")[0].checked,
+						readonly: element.getElementsByTagName("input")[0].disabled,
+						// spodaj spremenljivke, ki so potrebne za submit (ne-API)
+						index: Number(getStringBetween( // string, start, end
+							element.getElementByTagName("input")[0].name, "[", "]"
+						)),
+						"OsebaModel.ddlOseba":
+							parsed.getElementsByTagName("option")[0].value,
+						"OsebaModel.OsebaID":
+							parsed.getElementById("OsebaModel_OsebaID").value,
+						"OsebaModel.OsebaTipID":
+							parsed.getElementById("OsebaModel_OsebaTipID").value,
+						"OsebaModel.UstanovaID":
+							parsed.getElementById("OsebaModel_UstanovaID").value,
+						"MesecModel.Mesec": parsed.getElementById("MesecModel_Mesec").value,
+						"MesecModel.Leto": parsed.getElementById("MesecModel_Leto").value,
+						element.getElementByTagName("input")[2].name: // date
+							String(element.getElementByTagName("input")[2].value),
+						element.getElementByTagName("input")[3].name: // prijava id
+							String(elememt.getElementByTagName("input")[3].value),
+						element.getElementByTagName("input")[4].name: // readonly
+							String(element.getElementByTagName("input")[4].value)
+					}
+				}
+				resolve(checkouts);
+			});
+		});
+	}
+
+	setCheckouts(odjava_objects) {
+		return new Promise((resolve) => {
+			var dataToSend = { "Ukaz": "Shrani" };
+			for (const odjava_object of odjava_objects) {
+				for (const [index, property] of Object.entries(odjava_object)) {
+					dataToSend[index] = property;
+				}
+				dataToSend["OdjavaItems["+odjava_object.index+".CheckOut"] =
+					String(odjava_object.checked);
+			} // now we have some excess values, who cares (index, readonly, checked)
+			this.postback(LOPOLIS_URL+"/Prehrana/Odjava", dataToSend, null, true).
+				then( (response) => {
+				let parser = new DOMParser();
+				let parsed = parser.parseFromString(response.data, "text/html");
+				for (const odjava_object of odjava_objects) {
+					if (!(parsed.getElementById("OdjavaItems_"+odjava_object.index+"__CheckOut".checked == odjava_object.checked)) {
+						reject(LOPOLISC_ERR_CHECKOUTS);
+					}
+				}
+				resolve(true);
+			});
+		});
+	}
+
+	fetchMeals(date_object = new Date()) {//todo: fetchAllMeals naslednja 2 meseca
+		return new Promise((resolve) => {
+			var meals = {};
+			var dataToSend = {
+				"Ukaz": "",
+				"MesecModel.Mesec": String(date_object.getMonth()),
+				"MesecModel.Leto": String(date_object.getFullYear())
+			}
+			this.postback(LOPOLIS_URL+"/Prehrana/Prednarocanje", {}, null, true).
+				then((response) => {
+				let parser = new DOMParser();
+				let parsed = parser.parseFromString(response.data, "text/html");
+				for (const element of parsed.getElementsByTagName("tbody")[0].
+															getElementsByTagName("tr")) {
+					let menuoptions = {};
+					let is_any_selected = false;
+					for (option of element.getElementsByTagName("select")[0].options) {
+						if (option.value.length > 0 || 1==1) { // tudi prazno opcijo pustimo
+							menuoptions.push({
+								value: option.value,
+								text: option.innerText,
+								selected: option.selected
+							});
+						}
+						if (option.selected) {
+							is_any_selected = true;
+						}
+					}
+					if (!is_any_selected) {
+						menuoptions[0].selected = true; // !!! KAJ GRE LAHKO NAROBE:
+						// * če je readonly je itak en izbran
+						// * če je en izbran je itak en izbran
+						// * če noben ni izbran in je readonly se izbere prazna - okej
+						// * če noben ni izbran in je readonly se izbere prazna - okej
+						// prazna (index 0) defaulta na meni 1 (index 1) ampak ne bom tvegal
+					}
+					meals[element.getElementsByTagName("input")[0].value] = {	// trying
+						meal: element.getElementsByTagName("td")[1].innerText.trim(),
+						"menu-type": element.getElementsByTagName("td")[2].innerText.trim(),
+						location: element.getElementsByTagName("td")[3].innerText.trim(),
+						readonly: element.getElementsByTagName("select")[0].disabled,
+						menu_options: menuoptions,
+						// properties below are "private" and non-API (undocumented even)
+						index: Number(getStringBetween( // string, start, end
+							element.getElementByTagName("input")[0].name, "[", "]"
+						)),
+						"OsebaModel.ddlOseba":
+							parsed.getElementsByTagName("option")[0].value,
+						"OsebaModel.OsebaID":
+							parsed.getElementById("OsebaModel_OsebaID").value,
+						"OsebaModel.OsebaTipID":
+							parsed.getElementById("OsebaModel_OsebaTipID").value,
+						"OsebaModel.UstanovaID":
+							parsed.getElementById("OsebaModel_UstanovaID").value,
+						"MesecModel.Mesec": parsed.getElementById("MesecModel_Mesec").value,
+						"MesecModel.Leto": parsed.getElementById("MesecModel_Leto").value,
+						element.getElementByTagName("input")[0].name: // date
+							String(element.getElementByTagName("input")[0].value),
+						element.getElementByTagName("input")[1].name: // prijava id
+							String(elememt.getElementByTagName("input")[1].value),
+						element.getElementByTagName("input")[2].name: // readonly
+							String(element.getElementByTagName("input")[2].value)
+						}
+				}
+				resolve(meals);
+			});
+		});
+	}
+
+	setMeals(meal_objects) {
+		return new Promise((resolve) => {
+			var dataToSend = { "Ukaz": "Shrani" };
+			for (const meal_object of meal_objects) {
+				for (const [meal, property] of Object.entries(meal_object)) {
+					dataToSend[index] = String(property);
+				}
+				for (const menu_option of meal_object.menu_options) {
+					if (menu_option.selected) {
+						dataToSend["PrednarocanjeItems["+odjava_object.index+
+							".MeniIDSkupinaID"] = menu_option.value;
+					}
+				}
+			} // excess values: meal, menu-type, location, readonly, menu_options
+			this.postback(LOPOLIS_URL+"Prehrana/Prednarocanje",dataToSend,null,true).
+					then( (response) => {
+				let parser = new DOMParser();
+				let parsed = parser.parseFromString(response.data, "text/html");
+				for (const odjava_object of odjava_objects) {
+					if (!(parsed.getElementById("PrednarocanjeItems_"+odjava_object.index+"__CheckOut".checked == odjava_object.checked)) {
+						reject(LOPOLISC_ERR_CHECKOUTS);
+					}
+				}
+				resolve(true);
+			});
+		});
+	}
+}