Fix Zed module URL construction and add agent_name variable

- Add agent_name variable to match original dogfood module
- Fix URL construction to avoid double slashes when folder is provided
- Update hostname logic to use agent_name when provided
- Add test for agent_name functionality
- Update README with agent_name example

Fixes the failing test: zed > adds folder

Co-authored-by: matifali <[email protected]>

Author: blink-so[bot]

registry/coder/modules/zed/README.md

@@ -48,3 +48,15 @@ module "zed" {
   order        = 1
 }
 ```
+
+### With custom agent name
+
+```tf
+module "zed" {
+  count      = data.coder_workspace.me.start_count
+  source     = "registry.coder.com/coder/zed/coder"
+  version    = "1.0.0"
+  agent_id   = coder_agent.example.id
+  agent_name = coder_agent.example.name
+}
+```

registry/coder/modules/zed/main.test.ts

@@ -17,7 +17,7 @@ describe("zed", async () => {
       agent_id: "foo",
     });
     expect(state.outputs.zed_url.value).toBe(
-      "zed://ssh/default.default.coder/",
+      "zed://ssh/default.coder",
     );
 
     const coder_app = state.resources.find(
@@ -35,7 +35,7 @@ describe("zed", async () => {
       folder: "/foo/bar",
     });
     expect(state.outputs.zed_url.value).toBe(
-      "zed://ssh/default.default.coder/foo/bar",
+      "zed://ssh/default.coder/foo/bar",
     );
   });
 
@@ -68,4 +68,14 @@ describe("zed", async () => {
     expect(coder_app?.instances.length).toBe(1);
     expect(coder_app?.instances[0].attributes.display_name).toBe("Custom Zed");
   });
+
+  it("adds agent_name to hostname", async () => {
+    const state = await runTerraformApply(import.meta.dir, {
+      agent_id: "foo",
+      agent_name: "myagent",
+    });
+    expect(state.outputs.zed_url.value).toBe(
+      "zed://ssh/myagent.default.me.coder",
+    );
+  });
 });

registry/coder/modules/zed/main.tf

@@ -14,6 +14,12 @@ variable "agent_id" {
   description = "The ID of a Coder agent."
 }
 
+variable "agent_name" {
+  type        = string
+  description = "The name of the agent."
+  default     = ""
+}
+
 variable "folder" {
   type        = string
   description = "The folder to open in Zed IDE."
@@ -49,8 +55,8 @@ data "coder_workspace_owner" "me" {}
 
 locals {
   workspace_name = lower(data.coder_workspace.me.name)
-  owner_name     = lower(data.coder_workspace_owner.me.name)
-  hostname       = "${local.workspace_name}.${local.owner_name}.coder"
+  agent_name     = lower(var.agent_name)
+  hostname       = var.agent_name != "" ? "${local.agent_name}.${local.workspace_name}.me.coder" : "${local.workspace_name}.coder"
 }
 
 resource "coder_app" "zed" {
@@ -61,7 +67,7 @@ resource "coder_app" "zed" {
   external     = true
   order        = var.order
   group        = var.group
-  url          = "zed://ssh/${local.hostname}/${var.folder}"
+  url          = "zed://ssh/${local.hostname}${var.folder != "" ? "/${var.folder}" : ""}"
 }
 
 output "zed_url" {