fix: only cache remote image urls, fixes same remote image in multipl…

…e splits

README.md

@@ -76,8 +76,8 @@ local api = require("image")
 
 local image = api.from_file("path/to/image.png", {
   id = "my_image_id", -- optional, defaults to a random string
-  window = 1000, -- optional, binds image to the window and its bounds
-  buffer = 1000, -- optional, binds image to buffer
+  window = 1000, -- optional, binds image to a window and its bounds
+  buffer = 1000, -- optional, binds image to a buffer (paired with window binding)
   with_virtual_padding = true, -- optional, pads vertically with extmarks
   ...geometry, -- optional, { x, y, width, height }
 })

lua/image/image.lua

@@ -154,7 +154,8 @@ end
 ---@param state State
 local from_url = function(url, options, callback, state)
   if state.remote_cache[url] then
-    callback(state.remote_cache[url])
+    local image = create_image(state.remote_cache[url], options, state)
+    callback(image)
     return
   end
 
@@ -184,9 +185,10 @@ local from_url = function(url, options, callback, state)
       return
     end
 
+    state.remote_cache[url] = tmp_path
+
     vim.defer_fn(function()
       local image = create_image(tmp_path, options, state)
-      state.remote_cache[url] = image
       callback(image)
     end, 0)
   end)

lua/types.lua

@@ -12,7 +12,7 @@
 ---@field options Options
 ---@field images { [string]: Image }
 ---@field extmarks_namespace any
----@field remote_cache { [string]: Image }
+---@field remote_cache { [string]: string }
 
 ---@class MarkdownIntegrationOptions
 ---@field enabled boolean