Start working on the Stats Viewer application

module/utils/databases/Memory.mjs

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+/* eslint-disable no-unused-vars */
+import { Table } from "./model.mjs";
+
+export class MemoryDatabase {
+	static getTables() {
+		/** @type {Array<{ name: string; }>} */
+		return [
+			{ name: `Dice/d4` },
+			{ name: `Dice/d6` },
+			{ name: `Dice/d8` },
+			{ name: `Dice/d10` },
+			{ name: `Dice/d12` },
+			{ name: `Dice/d20` },
+			{ name: `Dice/d100` },
+			{ name: `Count of Successes` },
+		];
+	};
+
+	static createRow(table, user, row) {};
+
+	static getRows(tableId, ...users) {
+		if (users.length === 0) { users = [game.user] };
+
+		const datasets = {};
+
+		return datasets;
+	};
+
+	static updateRow(table, user, rowId, changes) {};
+
+	static deleteRow(table, user, rowId) {};
+};
+
+/* eslint-enable no-unused-vars */

module/utils/databases/UserFlag.mjs

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+/* eslint-disable no-unused-vars */
+import { Table } from "./model.mjs";
+
+const tablesFlag = `tables`;
+
+export class UserFlagDatabase {
+	static getTables() {
+		/** @type {Array<{ name: string; }>} */
+		const tableConfig = game.settings.get(__ID__, `tables`);
+		return tableConfig ?? [];
+	};
+
+	static createRow(table, user, row) {};
+
+	static getRows(tableId, ...users) {
+		if (users.length === 0) { users = [game.user] };
+
+		const datasets = {};
+		for (const user of users) {
+			const tables = user.getFlag(__ID__, tablesFlag) ?? {};
+			if (tables[tableId] === undefined) {
+				datasets[user.id] = null;
+				continue;
+			};
+
+			const table = new Table(tables[tableId]);
+		}
+		return datasets;
+	};
+
+	static updateRow(table, user, rowId, changes) {};
+
+	static deleteRow(table, user, rowId) {};
+};
+
+/* eslint-enable no-unused-vars */

module/utils/databases/model.mjs

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+const { fields } = foundry.data;
+
+// MARK: Table
+export class Table extends foundry.abstract.DataModel {
+	static defineSchema() {
+		return {
+			name: new fields.StringField({
+				nullable: false,
+				required: true,
+				blank: false,
+				trim: true,
+				validate(value) {
+					return !value.match(/[^a-z0-9_\-:]/i);
+				},
+			}),
+			data: new fields.TypedObjectField(Row),
+		};
+	};
+};
+
+// MARK: Row
+export class Row extends foundry.abstract.DataModel {
+	static defineSchema() {
+		return {
+			id: new fields.StringField({
+				nullable: false,
+				required: true,
+				blank: false,
+			}),
+			timestamp: new fields.NumberField({
+				min: 0,
+				required: true,
+				nullable: false,
+			}),
+			value: new fields.AnyField(),
+			private: new fields.BooleanField({
+				initial: false,
+				required: true,
+				nullable: false,
+			}),
+		};
+	};
+};