From 16232a2509a87a900b69b2d0f826a2e3edec3f96 Mon Sep 17 00:00:00 2001
From: s-ol <s-ol@users.noreply.github.com>
Date: Fri, 1 Nov 2019 13:48:24 +0100
Subject: add fileder ordering in stores.web, fileder, browser

---
 build/server.moon         | 18 +++++++++++++++---
 mmm/mmmfs/browser.moon    |  4 ++--
 mmm/mmmfs/fileder.moon    |  6 ++++++
 mmm/mmmfs/stores/web.moon |  3 +++
 4 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/build/server.moon b/build/server.moon
index 395b903..a2d6c71 100644
--- a/build/server.moon
+++ b/build/server.moon
@@ -138,7 +138,18 @@ class Server
           @store\update_facet path, facet.name, facet.type, value
           200, 'ok'
         else
-          501, "not implemented"
+          cmd, args = value\match '^([^\n]+)\n(.*)'
+          switch cmd
+            when 'swap'
+              child_a, child_b = args\match '^([^\n]+)\n([^\n]+)$'
+              assert child_a and child_b, "invalid arguments"
+
+              @store\swap_fileders path, child_a, child_b
+              200, 'ok'
+            when nil
+              400, "invalid request"
+            else
+              501, "unknown command #{cmd}"
       when 'DELETE'
         if facet
           @store\remove_facet path, facet.name, facet.type
@@ -175,8 +186,9 @@ class Server
 
     res = headers.new!
     response_type = if status > 299 then 'text/plain'
-    else if facet.type == 'text/html+interactive' then 'text/html'
-    else facet.type
+    else if facet and facet.type == 'text/html+interactive' then 'text/html'
+    else if facet then facet.type
+    else 'text/plain'
     res\append ':status', tostring status
     res\append 'content-type', response_type
 
diff --git a/mmm/mmmfs/browser.moon b/mmm/mmmfs/browser.moon
index 6020eb7..e06364c 100644
--- a/mmm/mmmfs/browser.moon
+++ b/mmm/mmmfs/browser.moon
@@ -279,11 +279,11 @@ class Browser
               span '- ', (link_to child, code name), style: flex: 1
 
               button '↑', disabled: i == 1, onclick: (_, e) ->
-                fileder\reorder_child name, i - 1
+                fileder\swap_children i, i - 1
                 @refresh true
 
               button '↓', disabled: i == num, onclick: (_, e) ->
-                fileder\reorder_child name, i + 1
+                fileder\swap_children i, i + 1
                 @refresh true
 
               button 'rm', onclick: (_, e) ->
diff --git a/mmm/mmmfs/fileder.moon b/mmm/mmmfs/fileder.moon
index b42c6dd..871f46f 100644
--- a/mmm/mmmfs/fileder.moon
+++ b/mmm/mmmfs/fileder.moon
@@ -79,6 +79,7 @@ class Fileder
 
       __newindex: (t, k, child) ->
         rawset t, k, child
+        return if child.path
 
         if @path == '/'
           child\mount '/'
@@ -318,6 +319,11 @@ class Fileder
     assert removed, "no such child fileder"
     @store\remove_fileder removed.path
 
+  swap_children: (ia, ib) =>
+    a, b = @children[ia], @children[ib]
+    @store\swap_fileders @path, (a\gett 'name: alpha'), (b\gett 'name: alpha')
+    @children[ia], @children[ib] = b, a
+
   __tostring: => "Fileder:#{@path}"
 
 {
diff --git a/mmm/mmmfs/stores/web.moon b/mmm/mmmfs/stores/web.moon
index b498d79..ddbd74d 100644
--- a/mmm/mmmfs/stores/web.moon
+++ b/mmm/mmmfs/stores/web.moon
@@ -77,6 +77,9 @@ class WebStore extends Store
     @log "moving fileder #{path} -> #{next_parent}/"
     error "not implemented"
 
+  swap_fileders: (parent, child_a, child_b) =>
+    req 'PUT', "#{@host .. parent}/", "swap\n#{child_a}\n#{child_b}"
+
   -- facets
   list_facets: (path) =>
     coroutine.wrap ->
-- 
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