move generic js into root

1 files changed, 133 insertions, 0 deletions

diff --git a/js/graduation-common.js b/js/graduation-common.js
new file mode 100644
index 0000000..4716e6d
--- /dev/null
+++ b/js/graduation-common.js
@@ -0,0 +1,133 @@
+import { GRADUATION_DB_ID, GRADUATION_ACTIVITY_ID, GRADUATION_DB_PARAMS_MAP } from "./config.js";
+import { loadFromDatabase, addEntryToDatabaseActivity } from "./database.js"
+
+class GraduationChange {
+	constructor(date, id, name, group, change, reason, coach, json) {
+		this.date = date;
+		this.id = id;
+		this.name = name;
+		this.group = group;
+		this.change = change;
+		this.reason = reason;
+		this.coach = coach;
+		this.json = json;
+	}
+
+	static DB_FIELDS = ["id", "name", "group", "change", "reason", "json"];
+
+	static newGreenPointChange(student, reason, coach) {
+		return new GraduationChange(
+			new Date(),
+			student.id, student.name, student.group,
+			"Grün", reason, coach, ""
+		);
+	}
+
+	static newOrangePointChange(student, reason, coach) {
+		return new GraduationChange(
+			new Date(),
+			student.id, student.name, student.group,
+			"Orange", reason, coach, ""
+		);
+	}
+
+	static newRedPointChange(student, reason, coach) {
+		return new GraduationChange(
+			new Date(),
+			student.id, student.name, student.group,
+			"Rot", reason, coach, ""
+		);
+	}
+}
+
+class Graduation {
+	constructor(student, green, orange, red, level, stickers, changes) {
+		this.student = student;
+		this.green = green;
+		this.orange = orange;
+		this.red = red;
+		this.level = level;
+		this.stickers = stickers;
+		this.changes = changes;
+
+		student.graduation = this;
+	}
+
+	static from(student, changes) {
+		let green = 0;
+		let orange = 0;
+		let red = 0;
+		let level = "Beginner";
+		let stickers = [];
+		for (const change of changes) {
+			switch (change.change) {
+			case "Grün":
+				green++;
+				break;
+			case "Orange":
+				orange++;
+				break;
+			case "Rot":
+				red++;
+				break;
+			case "Gespräch":
+				orange = 0;
+				break;
+			case "Änderung":
+				// TODO:
+				break;
+			default:
+				alert(`Unexpected change: ${change}`);
+			}
+		}
+		return new Graduation(student, green, orange, red, level, stickers, changes);
+	}
+
+	addChange(change) {
+		// TODO(muhq): Implement incremental addition
+		let changes = this.changes;
+		changes.push(change);
+		// This updates the student.graduation reference as well
+		Graduation.from(this.student, changes);
+	}
+}
+
+async function fetchGraduationChanges(student) {
+	let params = {};
+	// The id is enough
+	params[GRADUATION_DB_PARAMS_MAP["id"]] = student.id;
+
+	const data = await loadFromDatabase(GRADUATION_DB_ID, params);
+
+	let changes = [];
+	for (const e of data) {
+		const gradChange = new GraduationChange(e.date, e.id, e.name, e.group, e.change, e.reason, e.coach, e.json);
+		changes.push(gradChange);
+	}
+	return changes;
+}
+
+async function fetchGraduation(student) {
+	const changes = await fetchGraduationChanges(student);
+	return Graduation.from(student, changes);
+}
+
+async function submitGraduationChange(student, change) {
+	let params = {};
+	student.graduation.addChange(change);
+	for (const key of GraduationChange.DB_FIELDS) {
+		if (GRADUATION_DB_PARAMS_MAP[key]) {
+			params[GRADUATION_DB_PARAMS_MAP[key]] = change[key];
+		}
+	}
+
+	addEntryToDatabaseActivity(GRADUATION_ACTIVITY_ID, params);
+}
+
+export {
+	GraduationChange,
+	Graduation,
+	fetchGraduation,
+	fetchGraduationChanges,
+	submitGraduationChange
+};
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