Puck.debug=3;

/* 'app' is of the form:
{ name: "T-Rex",
  icon: "trex.png",
  description: "T-Rex game in the style of Chrome's offline game",
  storage: [
    {name:"+trex",file:"trex.json"},
    {name:"-trex",file:"trex.js"},
    {name:"*trex",file:"trex-icon.js"}
  ]
}
*/

// FIXME: use UART lib so that we handle errors properly
var Comms = {
uploadApp : app => {
  return new Promise((resolve,reject) => {
    // Load all files
    Promise.all(app.storage.map(storageFile => {
      var promise;
      if (storageFile.content)
        promise = Promise.resolve(storageFile.content);
      else if (storageFile.url)
        promise = httpGet("apps/"+storageFile.url);
      else promise = Promise.resolve();
      // then map each file to a command to load into storage
      return promise.then(contents =>
        contents?`\x10require('Storage').write(${toJS(storageFile.name)},${storageFile.evaluate ? contents.trim() : toJS(contents)});`:"")
    })) // now we just have a list of commands...
    .then((fileContents) => {
      fileContents = fileContents.join("\n")+"\n";
      console.log("uploadApp",fileContents);
      // reset to ensure we have enough memory to upload what we need to
      Puck.write("\x03reset();\n", (result) => {
        if (result===null) return reject("");
        setTimeout(() => { // wait for reset
          Puck.write("\x10E.showMessage('Uploading...')\n"+fileContents+"load()\n",(result) => {
            if (result===null) return reject("");
            resolve();
          });
        },500);
      });
    });
  });
},
getInstalledApps : () => {
  return new Promise((resolve,reject) => {
    Puck.write("\x03",(result) => {
      if (result===null) return reject("");
      Puck.eval('require("Storage").list().filter(f=>f[0]=="+").map(f=>f.substr(1))', (appList,err) => {
        if (appList===null) return reject(err || "");
        console.log("getInstalledApps", appList);
        resolve(appList);
      });
    });
  });
},
removeApp : app => { // expects an app structure
  var cmds = app.storage.map(file=>{
    return `\x10require("Storage").erase(${toJS(file.name)});\n`;
  }).join("");
  console.log("removeApp", cmds);
  return new Promise((resolve,reject) => {
    Puck.write("\x03"+cmds+"\x10load()\n",(result) => {
      if (result===null) return reject("");
      resolve();
    });
  });
},
removeAllApps : () => {
  return new Promise((resolve,reject) => {
    // Use eval here so we wait for it to finish
    Puck.eval('require("Storage").eraseAll()||true', (result,err) => {
      if (result===null) return reject(err || "");
      Puck.write('\x03\x10reset()\n',(result) => {
        if (result===null) return reject("");
        resolve();
      });
    });
  });
},
setTime : () => {
  return new Promise((resolve,reject) => {
    Puck.setTime((result) => {
      if (result===null) return reject("");
      resolve();
    });
  });
}
};