ja

discord.js

@@ -0,0 +1,82 @@
+// Discord OAuth2 Service
+const DISCORD_API = 'https://discord.com/api/v10';
+
+export function getDiscordAuthUrl() {
+  const params = new URLSearchParams({
+    client_id: process.env.DISCORD_CLIENT_ID,
+    redirect_uri: process.env.DISCORD_REDIRECT_URI,
+    response_type: 'code',
+    scope: 'identify guilds.members.read'
+  });
+  return `https://discord.com/oauth2/authorize?${params}`;
+}
+
+export async function exchangeCode(code) {
+  const response = await fetch(`${DISCORD_API}/oauth2/token`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/x-www-form-urlencoded'
+    },
+    body: new URLSearchParams({
+      client_id: process.env.DISCORD_CLIENT_ID,
+      client_secret: process.env.DISCORD_CLIENT_SECRET,
+      grant_type: 'authorization_code',
+      code,
+      redirect_uri: process.env.DISCORD_REDIRECT_URI
+    })
+  });
+
+  if (!response.ok) {
+    const error = await response.text();
+    throw new Error(`Failed to exchange code: ${error}`);
+  }
+
+  return response.json();
+}
+
+export async function getDiscordUser(accessToken) {
+  const response = await fetch(`${DISCORD_API}/users/@me`, {
+    headers: {
+      Authorization: `Bearer ${accessToken}`
+    }
+  });
+
+  if (!response.ok) {
+    throw new Error('Failed to get Discord user');
+  }
+
+  return response.json();
+}
+
+export async function getGuildMember(userId) {
+  const response = await fetch(
+    `${DISCORD_API}/guilds/${process.env.DISCORD_GUILD_ID}/members/${userId}`,
+    {
+      headers: {
+        Authorization: `Bot ${process.env.DISCORD_BOT_TOKEN}`
+      }
+    }
+  );
+
+  if (!response.ok) {
+    if (response.status === 404) {
+      return null; // User not in guild
+    }
+    throw new Error('Failed to get guild member');
+  }
+
+  return response.json();
+}
+
+export function getUserRole(memberRoles) {
+  const adminRoleId = process.env.DISCORD_ADMIN_ROLE_ID;
+  const modRoleId = process.env.DISCORD_MOD_ROLE_ID;
+
+  if (memberRoles.includes(adminRoleId)) {
+    return 'superadmin';
+  }
+  if (memberRoles.includes(modRoleId)) {
+    return 'moderator';
+  }
+  return 'user';
+}