feat: add commandHandler

server/src/game/commandHandler.js

@@ -0,0 +1,42 @@
+import Quest from '../models/quest.js'
+
+// 檢查 pattern 是否符合 input
+const checkMatch = (pattern, input) => {
+  if (pattern.length === 0) return true
+  return pattern.some((p) => {
+    const regex = new RegExp(p)
+    return regex.test(input)
+  })
+}
+
+const commandHandler = async (session, commandInput) => {
+  const quest = await Quest.findById(session.quest)
+  const stage = quest.stages.find((s) => s.id === session.progress)
+  if (!stage) {
+    console.error('stage not found', session.progress)
+    return {}
+  }
+
+  console.log(stage.condition)
+
+  const commandMatch = checkMatch(stage.condition.command, commandInput.command)
+  const outputMatch = checkMatch(stage.condition.output, commandInput.output)
+  const errorMatch = checkMatch(stage.condition.error, commandInput.output)
+
+  console.log(commandMatch, outputMatch, errorMatch)
+
+  if (!commandMatch || !outputMatch || !errorMatch) return {}
+
+  session.completion.push(session.progress)
+
+  const nextStage = quest.stages.find((s) => s.id === stage.next)
+  session.progress = nextStage.id
+  await session.save()
+
+  return {
+    responses: stage.responses,
+    hint: stage.hint,
+  }
+}
+
+export default commandHandler