Add time_and_date plugin. Use it for timezones and date formats around the bot.

backend/src/plugins/TimeAndDate/TimeAndDatePlugin.ts

@@ -0,0 +1,50 @@
+import { zeppelinPlugin } from "../ZeppelinPluginBlueprint";
+import { ConfigSchema, TimeAndDatePluginType } from "./types";
+import { GuildMemberTimezones } from "../../data/GuildMemberTimezones";
+import { PluginOptions } from "knub";
+import { SetTimezoneCmd } from "./commands/SetTimezoneCmd";
+import { ViewTimezoneCmd } from "./commands/ViewTimezoneCmd";
+import { defaultDateFormats } from "./defaultDateFormats";
+import { Tail } from "../../utils/typeUtils";
+import { inGuildTz } from "./functions/inGuildTz";
+import { mapToPublicFn } from "../../pluginUtils";
+import { getGuildTz } from "./functions/getGuildTz";
+import { getMemberTz } from "./functions/getMemberTz";
+import { getDateFormat } from "./functions/getDateFormat";
+import { inMemberTz } from "./functions/inMemberTz";
+
+const defaultOptions: PluginOptions<TimeAndDatePluginType> = {
+  config: {
+    timezone: "Etc/UTC",
+    can_set_timezone: false,
+    date_formats: defaultDateFormats,
+  },
+
+  overrides: [
+    {
+      level: ">=50",
+      config: {
+        can_set_timezone: true,
+      },
+    },
+  ],
+};
+
+export const TimeAndDatePlugin = zeppelinPlugin<TimeAndDatePluginType>()("time_and_date", {
+  configSchema: ConfigSchema,
+  defaultOptions,
+
+  commands: [SetTimezoneCmd, ViewTimezoneCmd],
+
+  public: {
+    getGuildTz: mapToPublicFn(getGuildTz),
+    inGuildTz: mapToPublicFn(inGuildTz),
+    getMemberTz: mapToPublicFn(getMemberTz),
+    inMemberTz: mapToPublicFn(inMemberTz),
+    getDateFormat: mapToPublicFn(getDateFormat),
+  },
+
+  onLoad(pluginData) {
+    pluginData.state.memberTimezones = GuildMemberTimezones.getGuildInstance(pluginData.guild.id);
+  },
+});