Add DB operations for used quotes and history.

src/utils/data.ts

@@ -0,0 +1,50 @@
+import fs from "fs/promises";
+
+/**
+ * Retrieves the historical data for each bracket that was ran for a channel.
+ *
+ * @param guild_id The guild ID that we are loading the history of brackets for
+ */
+export async function loadHistory(guild_id: string): Promise<bracket_history[]> {
+	try {
+		return JSON.parse(await fs.readFile(`data/history/${guild_id}.json`, `utf-8`))
+	} catch (err) {
+		return [];
+	};
+};
+
+/**
+ * Loads all of the quotes used by the system in previous quote brackets to
+ * prevent duplicates.
+ *
+ * @param guild_id The guild ID that we are loading quotes for
+ * @returns The quotes which have been used
+ */
+export async function loadUsedQuotes(guild_id: string): Promise<string[]> {
+	try {
+		return JSON.parse(await fs.readFile(`data/used_quotes/${guild_id}.json`, `utf-8`))
+	} catch (err) {
+		return [];
+	};
+};
+
+/**
+ * Saves the guild's quote bracket history.
+ *
+ * @param guild_id The ID of the guild which is being saved.
+ * @param data The data that we are saving to disk.
+ */
+export async function saveHistory(guild_id: string, data: any) {
+	fs.writeFile(`data/history/${guild_id}.json`, JSON.stringify(data));
+};
+
+/**
+ * Saves the data to the guild's Used Quotes file to prevent duplicate quotes from
+ * being used.
+ *
+ * @param guild_id The guild's ID
+ * @param data The data that we are saving
+ */
+export async function saveUsedQuotes(guild_id: string, data: any) {
+	fs.writeFile(`data/used_quotes/${guild_id}.json`, JSON.stringify(data));
+};