modes concept

packages/opencode/src/session/mode.ts

@@ -0,0 +1,74 @@
+import { mergeDeep } from "remeda"
+import { App } from "../app/app"
+import { Config } from "../config/config"
+import z from "zod"
+
+export namespace Mode {
+  export const Info = z
+    .object({
+      name: z.string(),
+      model: z
+        .object({
+          modelID: z.string(),
+          providerID: z.string(),
+        })
+        .optional(),
+      prompt: z.string().optional(),
+      tools: z
+        .object({
+          write: z.boolean().optional(),
+          edit: z.boolean().optional(),
+          patch: z.boolean().optional(),
+        })
+        .optional(),
+    })
+    .openapi({
+      ref: "Mode",
+    })
+  export type Info = z.infer<typeof Info>
+  const state = App.state("mode", async () => {
+    const cfg = await Config.get()
+    const mode = mergeDeep(
+      {
+        build: {},
+        plan: {
+          tools: {
+            write: false,
+            edit: false,
+            patch: false,
+          },
+        },
+      },
+      cfg.mode ?? {},
+    )
+    const result: Record<string, Info> = {}
+    for (const [key, value] of Object.entries(mode)) {
+      let item = result[key]
+      if (!item)
+        item = result[key] = {
+          name: key,
+          tools: {},
+        }
+      const model = value.model ?? cfg.model
+      if (model) {
+        const [providerID, ...rest] = model.split("/")
+        const modelID = rest.join("/")
+        item.model = {
+          modelID,
+          providerID,
+        }
+      }
+      if (value.prompt) item.prompt = await Bun.file(value.prompt).text()
+      if (value.tools) item.tools = value.tools
+    }
+    return result
+  })
+
+  export async function get(mode: string) {
+    return state().then((x) => x[mode])
+  }
+
+  export async function list() {
+    return state().then((x) => Object.values(x))
+  }
+}