Refactor authentication system to consolidate auth flow and remove provider-based commands

🤖 Generated with [OpenCode](https://opencode.ai)

Co-Authored-By: OpenCode <noreply@opencode.ai>

packages/opencode/src/cli/cmd/auth.ts

@@ -0,0 +1,144 @@
+import { AuthAnthropic } from "../../auth/anthropic"
+import { Auth } from "../../auth"
+import { cmd } from "./cmd"
+import * as prompts from "@clack/prompts"
+import open from "open"
+import { UI } from "../ui"
+import { ModelsDev } from "../../provider/models"
+
+export const AuthCommand = cmd({
+  command: "auth",
+  builder: (yargs) =>
+    yargs
+      .command(AuthLoginCommand)
+      .command(AuthLogoutCommand)
+      .command(AuthListCommand)
+      .demandCommand(),
+  async handler(args) {},
+})
+
+export const AuthListCommand = cmd({
+  command: "list",
+  aliases: ["ls"],
+  describe: "list providers",
+  async handler() {
+    UI.empty()
+    prompts.intro("Credentials")
+    const results = await Auth.all().then((x) => Object.entries(x))
+    const database = await ModelsDev.get()
+
+    for (const [providerID, result] of results) {
+      const name = database[providerID]?.name || providerID
+      prompts.log.info(`${name} ${Bun.color("gray", "ansi")}(${result.type})`)
+    }
+
+    prompts.outro(`${results.length} credentials`)
+  },
+})
+
+export const AuthLoginCommand = cmd({
+  command: "login",
+  describe: "login to a provider",
+  async handler() {
+    UI.empty()
+    prompts.intro("Add credential")
+    const provider = await prompts.select({
+      message: "Select provider",
+      maxItems: 2,
+      options: [
+        {
+          label: "Anthropic",
+          value: "anthropic",
+        },
+        {
+          label: "OpenAI",
+          value: "openai",
+        },
+        {
+          label: "Google",
+          value: "google",
+        },
+      ],
+    })
+    if (prompts.isCancel(provider)) throw new UI.CancelledError()
+
+    if (provider === "anthropic") {
+      const method = await prompts.select({
+        message: "Login method",
+        options: [
+          {
+            label: "Claude Pro/Max",
+            value: "oauth",
+          },
+          {
+            label: "API Key",
+            value: "api",
+          },
+        ],
+      })
+      if (prompts.isCancel(method)) throw new UI.CancelledError()
+
+      if (method === "oauth") {
+        // some weird bug where program exits without this
+        await new Promise((resolve) => setTimeout(resolve, 10))
+        const { url, verifier } = await AuthAnthropic.authorize()
+        prompts.note("Opening browser...")
+        await open(url)
+        prompts.log.info(url)
+
+        const code = await prompts.text({
+          message: "Paste the authorization code here: ",
+          validate: (x) => (x.length > 0 ? undefined : "Required"),
+        })
+        if (prompts.isCancel(code)) throw new UI.CancelledError()
+
+        await AuthAnthropic.exchange(code, verifier)
+          .then(() => {
+            prompts.log.success("Login successful")
+          })
+          .catch(() => {
+            prompts.log.error("Invalid code")
+          })
+        prompts.outro("Done")
+        return
+      }
+    }
+
+    const key = await prompts.password({
+      message: "Enter your API key",
+      validate: (x) => (x.length > 0 ? undefined : "Required"),
+    })
+    if (prompts.isCancel(key)) throw new UI.CancelledError()
+    await Auth.set(provider, {
+      type: "api",
+      key,
+    })
+
+    prompts.outro("Done")
+  },
+})
+
+export const AuthLogoutCommand = cmd({
+  command: "logout",
+  describe: "logout from a configured provider",
+  async handler() {
+    UI.empty()
+    const credentials = await Auth.all().then((x) => Object.entries(x))
+    prompts.intro("Remove credential")
+    if (credentials.length === 0) {
+      prompts.log.error("No credentials found")
+      return
+    }
+    const database = await ModelsDev.get()
+    const providerID = await prompts.select({
+      message: "Select credential",
+      options: credentials.map(([key, value]) => ({
+        label: database[key]?.name || key,
+        value: key,
+      })),
+    })
+    if (prompts.isCancel(providerID)) throw new UI.CancelledError()
+    await Auth.remove(providerID)
+    prompts.outro("Logout successful")
+  },
+})