Switch from ajv to io-ts for config validation; validate configs on save in the API/dashboard; start work on creating io-ts schemas for all plugins

src/configValidator.ts

@@ -0,0 +1,51 @@
+import * as t from "io-ts";
+import { IPluginOptions } from "knub";
+import { pipe } from "fp-ts/lib/pipeable";
+import { fold } from "fp-ts/lib/Either";
+import { PathReporter } from "io-ts/lib/PathReporter";
+import { availablePlugins } from "./plugins/availablePlugins";
+import { ZeppelinPlugin } from "./plugins/ZeppelinPlugin";
+import { validateStrict } from "./validatorUtils";
+
+const pluginNameToClass = new Map<string, typeof ZeppelinPlugin>();
+for (const pluginClass of availablePlugins) {
+  // @ts-ignore
+  pluginNameToClass.set(pluginClass.pluginName, pluginClass);
+}
+
+const guildConfigRootSchema = t.type({
+  prefix: t.string,
+  levels: t.record(t.string, t.number),
+  plugins: t.record(t.string, t.unknown),
+});
+const partialGuildConfigRootSchema = t.exact(t.partial(guildConfigRootSchema.props));
+
+const globalConfigRootSchema = t.type({
+  url: t.string,
+  owners: t.array(t.string),
+  plugins: t.record(t.string, t.unknown),
+});
+
+const partialMegaTest = t.partial({ name: t.string });
+
+export function validateGuildConfig(config: any): string[] | null {
+  const rootErrors = validateStrict(partialGuildConfigRootSchema, config);
+  if (rootErrors) return rootErrors;
+
+  if (config.plugins) {
+    for (const [pluginName, pluginOptions] of Object.entries(config.plugins)) {
+      if (!pluginNameToClass.has(pluginName)) {
+        return [`Unknown plugin: ${pluginName}`];
+      }
+
+      const pluginClass = pluginNameToClass.get(pluginName);
+      let pluginErrors = pluginClass.validateOptions(pluginOptions);
+      if (pluginErrors) {
+        pluginErrors = pluginErrors.map(err => `${pluginName}: ${err}`);
+        return pluginErrors;
+      }
+    }
+  }
+
+  return null;
+}