feat: add /debug runtime overrides

src/auto-reply/reply/debug-commands.ts

@@ -0,0 +1,98 @@
+export type DebugCommand =
+  | { action: "show" }
+  | { action: "reset" }
+  | { action: "set"; path: string; value: unknown }
+  | { action: "unset"; path: string }
+  | { action: "error"; message: string };
+
+function parseDebugValue(raw: string): { value?: unknown; error?: string } {
+  const trimmed = raw.trim();
+  if (!trimmed) return { error: "Missing value." };
+
+  if (trimmed.startsWith("{") || trimmed.startsWith("[")) {
+    try {
+      return { value: JSON.parse(trimmed) };
+    } catch (err) {
+      return { error: `Invalid JSON: ${String(err)}` };
+    }
+  }
+
+  if (trimmed === "true") return { value: true };
+  if (trimmed === "false") return { value: false };
+  if (trimmed === "null") return { value: null };
+
+  if (/^-?\d+(\.\d+)?$/.test(trimmed)) {
+    const num = Number(trimmed);
+    if (Number.isFinite(num)) return { value: num };
+  }
+
+  if (
+    (trimmed.startsWith("\"") && trimmed.endsWith("\"")) ||
+    (trimmed.startsWith("'") && trimmed.endsWith("'"))
+  ) {
+    try {
+      return { value: JSON.parse(trimmed) };
+    } catch {
+      const unquoted = trimmed.slice(1, -1);
+      return { value: unquoted };
+    }
+  }
+
+  return { value: trimmed };
+}
+
+export function parseDebugCommand(raw: string): DebugCommand | null {
+  const trimmed = raw.trim();
+  if (!trimmed.toLowerCase().startsWith("/debug")) return null;
+  const rest = trimmed.slice("/debug".length).trim();
+  if (!rest) return { action: "show" };
+
+  const match = rest.match(/^(\S+)(?:\s+([\s\S]+))?$/);
+  if (!match) return { action: "error", message: "Invalid /debug syntax." };
+  const action = match[1].toLowerCase();
+  const args = (match[2] ?? "").trim();
+
+  switch (action) {
+    case "show":
+      return { action: "show" };
+    case "reset":
+      return { action: "reset" };
+    case "unset": {
+      if (!args) return { action: "error", message: "Usage: /debug unset path" };
+      return { action: "unset", path: args };
+    }
+    case "set": {
+      if (!args) {
+        return {
+          action: "error",
+          message: "Usage: /debug set path=value",
+        };
+      }
+      const eqIndex = args.indexOf("=");
+      if (eqIndex <= 0) {
+        return {
+          action: "error",
+          message: "Usage: /debug set path=value",
+        };
+      }
+      const path = args.slice(0, eqIndex).trim();
+      const rawValue = args.slice(eqIndex + 1);
+      if (!path) {
+        return {
+          action: "error",
+          message: "Usage: /debug set path=value",
+        };
+      }
+      const parsed = parseDebugValue(rawValue);
+      if (parsed.error) {
+        return { action: "error", message: parsed.error };
+      }
+      return { action: "set", path, value: parsed.value };
+    }
+    default:
+      return {
+        action: "error",
+        message: "Usage: /debug show|set|unset|reset",
+      };
+  }
+}