1 files changed, 78 insertions, 3 deletions

diff --git a/lib/app.js b/lib/app.js
index f3b1774..9166eb2 100644
--- a/lib/app.js
+++ b/lib/app.js
@@ -11,7 +11,7 @@ var About = require('./about')
 var Follows = require('./follows')
 var Serve = require('./serve')
 var Render = require('./render')
-var Git = require('./git')
+var Git = require('ssb-git')
 var cat = require('pull-cat')
 var proc = require('child_process')
 var toPull = require('stream-to-pull-stream')
@@ -62,7 +62,7 @@ function App(sbot, config) {
   this.unboxMsg = this.unboxMsg.bind(this)
 
   this.render = new Render(this, this.opts)
-  this.git = new Git(this)
+  this.git = new Git(this.sbot, this.config)
   this.contacts = new Contacts(this.sbot)
   this.follows = new Follows(this.sbot, this.contacts)
 
@@ -101,7 +101,7 @@ App.prototype.error = console.error.bind(console, logPrefix)
 
 App.prototype.unboxMsg = function (msg, cb) {
   var self = this
-  var c = msg.value && msg.value.content
+  var c = msg && msg.value && msg.value.content
   if (typeof c !== 'string') cb(null, msg)
   else self.unboxContent(c, function (err, content) {
     if (err) {
@@ -905,3 +905,78 @@ App.prototype.expandOoo = function (opts, cb) {
     }
   }
 }
+
+App.prototype.getLineComments = function (opts, cb) {
+  // get line comments for a git-update message and git object id.
+  // line comments include message id, commit id and path
+  // but we have message id and git object hash.
+  // look up the git object hash for each line-comment
+  // to verify that it is for the git object file we want
+  var updateId = opts.obj.msg.key
+  var objId = opts.hash
+  var self = this
+  var lineComments = {}
+  pull(
+    self.sbot.backlinks ? self.sbot.backlinks.read({
+      query: [
+        {$filter: {
+          dest: updateId,
+          value: {
+            content: {
+              type: 'line-comment',
+              updateId: updateId,
+            }
+          }
+        }}
+      ]
+    }) : pull(
+      self.sbot.links({
+        dest: updateId,
+        rel: 'updateId',
+        values: true
+      }),
+      pull.filter(function (msg) {
+        var c = msg && msg.value && msg.value.content
+        return c && c.type === 'line-comment'
+          && c.updateId === updateId
+      })
+    ),
+    paramap(function (msg, cb) {
+      var c = msg.value.content
+      self.git.getObjectAtPath({
+        msg: updateId,
+        obj: c.commitId,
+        path: c.filePath,
+      }, function (err, info) {
+        if (err) return cb(err)
+        cb(null, {
+          obj: info.obj,
+          hash: info.hash,
+          msg: msg,
+        })
+      })
+    }, 4),
+    pull.filter(function (info) {
+      return info.hash === objId
+    }),
+    pull.drain(function (info) {
+      lineComments[info.msg.value.content.line] = info
+    }, function (err) {
+      cb(err, lineComments)
+    })
+  )
+}
+
+App.prototype.getThread = function (msg) {
+  return cat([
+    pull.once(msg),
+    this.sbot.backlinks ? this.sbot.backlinks.read({
+      query: [
+        {$filter: {dest: msg.key}}
+      ]
+    }) : this.sbot.links({
+      dest: msg.key,
+      values: true
+    })
+  ])
+}