skin studio updates, save sync CLOSES #1533

src/sync/SyncTransport.lua

@@ -0,0 +1,41 @@
+local Transport = {}
+Transport.__index = Transport
+
+function Transport.new(fetch)
+  return setmetatable({ fetch = fetch or require("src.net.Fetch") }, Transport)
+end
+
+function Transport:begin(req)
+  return self.fetch.request(req.url, {
+    method = req.method,
+    body = req.body,
+    headers = req.headers,
+    maxSeconds = req.maxSeconds,
+  })
+end
+
+function Transport:poll(handle)
+  local st = self.fetch.poll(handle)
+  if st.status == "pending" then return { status = "pending" } end
+  if st.status == "cancelled" then
+    return { status = "error", err = "sync request cancelled" }
+  end
+  if st.status ~= "ok" then
+    return { status = "error", err = st.err or "sync request failed" }
+  end
+  return { status = "ok", body = st.body or "", code = tonumber(st.code) }
+end
+
+function Transport:release(handle)
+  if handle ~= nil and self.fetch.release then self.fetch.release(handle) end
+end
+
+function Transport:cancel(handle)
+  if handle ~= nil and self.fetch.cancel then self.fetch.cancel(handle) end
+end
+
+function Transport:available()
+  return self.fetch.available and self.fetch.available() or false
+end
+
+return Transport