Add advanced search

1 files changed, 43 insertions, 0 deletions

diff --git a/lib/app.js b/lib/app.js
index b64ec2a..6653c1d 100644
--- a/lib/app.js
+++ b/lib/app.js
@@ -99,6 +99,49 @@ App.prototype.search = function (opts) {
   return search(opts)
 }
 
+App.prototype.advancedSearch = function (opts) {
+  return pull(
+    opts.dest ?
+      this.sbot.links({
+        values: true,
+        dest: opts.dest,
+        source: opts.source || undefined,
+        reverse: true,
+      })
+    : opts.source ?
+      this.sbot.createUserStream({
+        reverse: true,
+        id: opts.source
+      })
+    :
+      this.sbot.createFeedStream({
+        reverse: true,
+      }),
+    opts.text && pull.filter(filterByText(opts.text))
+  )
+}
+
+function forSome(each) {
+  return function some(obj) {
+    if (obj == null) return false
+    if (typeof obj === 'string') return each(obj)
+    if (Array.isArray(obj)) return obj.some(some)
+    if (typeof obj === 'object')
+      for (var k in obj) if (some(obj[k])) return true
+    return false
+  }
+}
+
+function filterByText(str) {
+  if (!str) return function () { return true }
+  var search = new RegExp(str, 'i')
+  var matches = forSome(search.test.bind(search))
+  return function (msg) {
+    var c = msg.value.content
+    return c && matches(c)
+  }
+}
+
 App.prototype.getMsgDecrypted = function (key, cb) {
   var self = this
   this.getMsg(key, function (err, msg) {