modularize tool-call rendering and styles

packages/ui/src/components/tool-call/renderers/bash.tsx

@@ -0,0 +1,38 @@
+import type { ToolRenderer } from "../types"
+import { ensureMarkdownContent, formatUnknown, getToolName, isToolStateCompleted, isToolStateError, isToolStateRunning, readToolStatePayload } from "../utils"
+
+export const bashRenderer: ToolRenderer = {
+  tools: ["bash"],
+  getAction: () => "Writing command...",
+  getTitle({ toolState }) {
+    const state = toolState()
+    if (!state) return undefined
+    const { input } = readToolStatePayload(state)
+    const name = getToolName("bash")
+    if (typeof input.description === "string" && input.description.length > 0) {
+      return `${name} ${input.description}`
+    }
+    return name
+  },
+  renderBody({ toolState, renderMarkdown }) {
+    const state = toolState()
+    if (!state || state.status === "pending") return null
+
+    const { input, metadata } = readToolStatePayload(state)
+    const command = typeof input.command === "string" && input.command.length > 0 ? `$ ${input.command}` : ""
+    const outputResult = formatUnknown(
+      isToolStateCompleted(state)
+        ? state.output
+        : (isToolStateRunning(state) || isToolStateError(state)) && metadata.output
+          ? metadata.output
+          : undefined,
+    )
+    const parts = [command, outputResult?.text].filter(Boolean)
+    if (parts.length === 0) return null
+
+    const content = ensureMarkdownContent(parts.join("\n"), "bash", true)
+    if (!content) return null
+
+    return renderMarkdown({ content, disableHighlight: state.status === "running" })
+  },
+}