From ec2391f16e10926dc5534a4a05744fcd4f85e0ad Mon Sep 17 00:00:00 2001
From: Steven Hugg <hugg@fasterlight.com>
Date: Wed, 25 Jan 2017 12:30:05 -0500
Subject: [PATCH] use Github gists for sharing

---
 .gitmodules       |  3 ++
 index.html        |  2 ++
 octokat.js        |  1 +
 src/ui.js         | 85 ++++++++++++++++++++++++++++-------------------
 tools/Makefile    |  2 ++
 tools/pbm_to_c.py | 37 +++++++++++++++++++++
 6 files changed, 96 insertions(+), 34 deletions(-)
 create mode 160000 octokat.js
 create mode 100644 tools/pbm_to_c.py

diff --git a/.gitmodules b/.gitmodules
index 0d56ed50..0d91be95 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "codemirror"]
 	path = codemirror
 	url = git@github.com:sehugg/codemirror
+[submodule "octokat.js"]
+	path = octokat.js
+	url = ./octokat.js
diff --git a/index.html b/index.html
index 926504b1..6b982be5 100644
--- a/index.html
+++ b/index.html
@@ -283,10 +283,12 @@ canvas.pixelated {
 <script src="local/williams/defender.js"></script>
 <script src="local/williams/robotron.js"></script>
 
+<script src="octokat.js/dist/octokat.js"></script>
 <script src="src/emu.js"></script>
 <script src="src/util.js"></script>
 <script src="src/disasm.js"></script>
 <script src="src/ui.js"></script>
+
 <script>
   showWelcomeMessage();
   startUI(true);
diff --git a/octokat.js b/octokat.js
new file mode 160000
index 00000000..2cba2d91
--- /dev/null
+++ b/octokat.js
@@ -0,0 +1 @@
+Subproject commit 2cba2d91728730ae5d51eb595cf36c7bf9221c5d
diff --git a/src/ui.js b/src/ui.js
index a395bbbf..64ddf1c8 100644
--- a/src/ui.js
+++ b/src/ui.js
@@ -235,24 +235,24 @@ function _shareFile(e) {
     alert("Please fix errors before sharing.");
     return true;
   }
+  if (!current_preset_id.startsWith("local/")) {
+    alert("Can only share files created with New File.");
+    return true;
+  }
+  var github = new Octokat();
+  var files = {};
   var text = editor.getValue();
-  console.log("POST",text.length,'bytes');
-  $.post({
-    url: 'share.php',
-    data: {
-      'platform':platform_id,
-      'filename':current_preset_id.split('/').pop(),
-      'text':text,
-    },
-    error: function(e) {
-      console.log(e);
-      alert("Error sharing file.");
-    },
-    success: function(result) {
-      var sharekey = result['key'];
-      var url = "http://8bitworkshop.com/?sharekey=" + sharekey;
-      window.prompt("Copy link to clipboard (Ctrl+C, Enter)", url);
-    }
+  files[current_preset_id.slice(6)] = {"content": text};
+  var gistdata = {
+    "description": '8bitworkshop.com {"platform":"' + platform_id + '"}',
+    "public": true,
+    "files": files
+  };
+  var gist = github.gists.create(gistdata).done(function(val) {
+    var url = "http://8bitworkshop.com/?sharekey=" + val.id;
+    window.prompt("Copy link to clipboard (Ctrl+C, Enter)", url);
+  }).fail(function(err) {
+    alert("Error sharing file: " + err.message);
   });
   return true;
 }
@@ -893,9 +893,13 @@ function preloadWorker(fileid) {
   if (tool) worker.postMessage({preload:tool});
 }
 
-function startPlatform() {
-  platform = new PLATFORMS[platform_id]($("#emulator")[0]);
+function initPlatform() {
   store = new FileStore(localStorage, platform_id + '/');
+}
+
+function startPlatform() {
+  initPlatform();
+  platform = new PLATFORMS[platform_id]($("#emulator")[0]);
   PRESETS = platform.getPresets();
   if (qs['file']) {
     // start platform and load file
@@ -914,22 +918,40 @@ function startPlatform() {
   }
 }
 
+function loadSharedFile(sharekey) {
+  var github = new Octokat();
+  var gist = github.gists(sharekey);
+  gist.fetch().done(function(val) {
+    var filename;
+    for (filename in val.files) { break; }
+    var newid = 'shared/' + filename;
+    var json = JSON.parse(val.description.slice(val.description.indexOf(' ')+1));
+    console.log("Fetched " + newid, json);
+    platform_id = json['platform'];
+    initPlatform();
+    updatePreset(newid, val.files[filename].content);
+    qs['file'] = newid;
+    qs['platform'] = platform_id;
+    delete qs['sharekey'];
+    gotoNewLocation();
+  }).fail(function(err) {
+    alert("Error loading share file: " + err.message);
+  });
+  return true;
+}
+
 // start
 function startUI(loadplatform) {
   installErrorHandler();
+  // add default platform?
+  platform_id = qs['platform'] || localStorage.getItem("__lastplatform");
+  if (!platform_id) {
+    platform_id = qs['platform'] = "vcs";
+  }
   // parse query string
   // is this a share URL?
   if (qs['sharekey']) {
-    var sharekey = qs['sharekey'];
-    console.log("Loading shared file ", sharekey);
-    $.getJSON( ".storage/" + sharekey, function( result ) {
-      console.log(result);
-      var newid = 'shared/' + result['filename'];
-      updatePreset(newid, result['text']);
-      qs['file'] = newid;
-      delete qs['sharekey'];
-      gotoNewLocation();
-    }, 'text');
+    loadSharedFile(qs['sharekey']);
   } else {
     // reset file?
     if (qs['file'] && qs['reset']) {
@@ -937,11 +959,6 @@ function startUI(loadplatform) {
       qs['reset'] = '';
       gotoNewLocation();
     } else {
-      // add default platform?
-      platform_id = qs['platform'] || localStorage.getItem("__lastplatform");
-      if (!platform_id) {
-        platform_id = qs['platform'] = "vcs";
-      }
       // load and start platform object
       if (loadplatform) {
         $.getScript('src/platform/' + platform_id + '.js', function() {
diff --git a/tools/Makefile b/tools/Makefile
index 7b1ae43a..cc5f70d8 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -11,3 +11,5 @@
 %-48.pbm: %.jpg
 	convert $< -resize 48x192\! -colorspace Gray -dither FloydSteinberg $@
 
+ship1.pbm: ship1.png
+	convert ship1.png -negate -flop ship1.pbm
\ No newline at end of file
diff --git a/tools/pbm_to_c.py b/tools/pbm_to_c.py
new file mode 100644
index 00000000..0c66261a
--- /dev/null
+++ b/tools/pbm_to_c.py
@@ -0,0 +1,37 @@
+#!/usr/bin/python
+
+import sys, struct
+
+# reverse byte
+def rev(n):
+    return int('{:08b}'.format(n)[::-1], 2)
+
+# output bits in given range
+def out(i, pix, lb, hb, reverse=0, shift=0):
+    x = (pix >> lb) & ((1<<(hb-lb))-1)
+    if reverse:
+        x = rev(x)
+    if shift:
+        x = x << shift
+    assert(x>=0 and x<=255)
+    output[i].append(x)
+
+# read PBM (binary P4 format) file
+with open(sys.argv[1],'rb') as f:
+    # read PBM header
+    header = f.readline().strip()
+    assert(header == 'P4')
+    dims = f.readline().strip()
+    if dims[0] == '#':
+        dims = f.readline().strip()
+    width,height = map(int, dims.split())
+    wbytes = (width+7)/8
+    data = f.read()
+    print "{%d,%d," % (wbytes,height),
+    for i in range(0,len(data)):
+        if i>0:
+            sys.stdout.write(",")
+        ofs = i+wbytes-(i%wbytes)*2-1
+        sys.stdout.write( "0x%02x" % ord(data[ofs]) )
+    print "}"
+