Reorganize project. Add folder for shared code between backend/dashboard. Switch from jest to ava for tests.

backend/src/plugins/WelcomeMessage.ts

@@ -0,0 +1,80 @@
+import { ZeppelinPlugin } from "./ZeppelinPlugin";
+import { decorators as d, IPluginOptions } from "knub";
+import { Member, TextChannel } from "eris";
+import { renderTemplate } from "../templateFormatter";
+import { createChunkedMessage, stripObjectToScalars, tNullable } from "../utils";
+import { LogType } from "../data/LogType";
+import { GuildLogs } from "../data/GuildLogs";
+import * as t from "io-ts";
+
+const ConfigSchema = t.type({
+  send_dm: t.boolean,
+  send_to_channel: tNullable(t.string),
+  message: t.string,
+});
+type TConfigSchema = t.TypeOf<typeof ConfigSchema>;
+
+export class WelcomeMessagePlugin extends ZeppelinPlugin<TConfigSchema> {
+  public static pluginName = "welcome_message";
+  public static configSchema = ConfigSchema;
+
+  public static pluginInfo = {
+    prettyName: "Welcome message",
+  };
+
+  protected logs: GuildLogs;
+
+  public static getStaticDefaultOptions(): IPluginOptions<TConfigSchema> {
+    return {
+      config: {
+        send_dm: false,
+        send_to_channel: null,
+        message: null,
+      },
+    };
+  }
+
+  protected onLoad() {
+    this.logs = new GuildLogs(this.guildId);
+  }
+
+  @d.event("guildMemberAdd")
+  async onGuildMemberAdd(_, member: Member) {
+    const config = this.getConfig();
+    if (!config.message) return;
+    if (!config.send_dm && !config.send_to_channel) return;
+
+    const formatted = await renderTemplate(config.message, {
+      member: stripObjectToScalars(member, ["user"]),
+    });
+
+    if (config.send_dm) {
+      const dmChannel = await member.user.getDMChannel();
+      if (!dmChannel) return;
+
+      try {
+        await createChunkedMessage(dmChannel, formatted);
+      } catch (e) {
+        this.logs.log(LogType.BOT_ALERT, {
+          body: `Failed send a welcome DM to {userMention(member)}`,
+          member: stripObjectToScalars(member),
+        });
+      }
+    }
+
+    if (config.send_to_channel) {
+      const channel = this.guild.channels.get(config.send_to_channel);
+      if (!channel || !(channel instanceof TextChannel)) return;
+
+      try {
+        await createChunkedMessage(channel, formatted);
+      } catch (e) {
+        this.logs.log(LogType.BOT_ALERT, {
+          body: `Failed send a welcome message for {userMention(member)} to {channelMention(channel)}`,
+          member: stripObjectToScalars(member),
+          channel: stripObjectToScalars(channel),
+        });
+      }
+    }
+  }
+}