Refresh webpage on file reload and add

src/index.js

@@ -21,6 +21,22 @@ function timeout(ms) {
   return new Promise(res => setTimeout(res, ms))
 }
 
+const reload = (() => {
+  const mtimeCache = {}
+  return async function reloadImpl(name) {
+    const path = require.resolve(name)
+    const stat = await promisify(fs.stat)(path)
+    const mtime = `${stat.mtime}`
+    if (mtimeCache[path] && mtimeCache[path] !== mtime) {
+      delete require.cache[path]
+      mtimeCache[path] = mtime
+      return true
+    }
+    mtimeCache[path] = mtime
+    return false
+  }
+})()
+
 console.log('starting')
 ;(async () => {
   const args = await Travian.generateArgs({
@@ -32,10 +48,15 @@ console.log('starting')
   const travian = impl(...args)
   try {
     await travian.login(await readCredentials())
+
     // eslint-disable-next-line no-constant-condition
     while (true) {
-      delete require.cache[require.resolve('./travian')]
-      delete require.cache[require.resolve('./bot')]
+      if ((await reload('./bot')) || (await reload('./travian'))) {
+        // eslint-disable-next-line global-require
+        await require('./travian')
+          .travianImpl(...args)
+          .refresh()
+      }
       try {
         // eslint-disable-next-line global-require
         await require('./bot').bot(require('./travian').travianImpl(...args))
@@ -43,7 +64,11 @@ console.log('starting')
       } catch (e) {
         console.error('Detected problem while running bot...')
         console.error(e)
-        console.error("Sleeping for 5 seconds so that it doesn't use whole CPU")
+        console.log()
+        console.error(
+          new Date(),
+          "Sleeping for 5 seconds so that it doesn't use whole CPU",
+        )
         await timeout(5000)
       }
     }

src/travian.js

@@ -10,6 +10,7 @@ const travianImpl = (
 ) => ({
   async goto(path, opts = {}) {
     if (state.path !== path) {
+      console.log('travian: navigating to', path)
       await page.goto(server + path, {
         waitUntil: 'networkidle',
         ...opts,
@@ -23,7 +24,20 @@ const travianImpl = (
     })
   },
 
+  async refresh() {
+    console.log('travian: Pressing F5')
+    await page.goto(server + state.path, {
+      waitUntil: 'networkidle',
+    })
+  },
+
   async login({ name, password }) {
+    console.log(
+      `travian: logging in ${name}:${password
+        .split('')
+        .map(() => '*')
+        .join('')}`,
+    )
     await this.goto('dorf1.php')
     if ((await page.$('.outerLoginBox')) !== null) {
       await page.click('.account input')
@@ -51,7 +65,7 @@ const travianImpl = (
         return {
           level: Number.parseInt(parts[parts.length - 1], 10),
           type: parts.slice(0, parts.length - 2).join(' '),
-          id: href.replace(`${server}build.php?id=`, ''),
+          id: Number.parseInt(href.replace(`${server}build.php?id=`, ''), 10),
         }
       })
       .filter(a => a.type)
@@ -78,6 +92,7 @@ const travianImpl = (
     })
   },
   async upgradeBuilding(id) {
+    console.log(`travian: upgrading building ${id}`)
     await this.goto(`build.php?id=${id}`)
     await page.click('.upgradeButtonsContainer .section1 button')
     await this.networkIdle()