From de2df63dcbe44f07dc994e29d7d400c49c811080 Mon Sep 17 00:00:00 2001
From: moxie <moxie@3kgcat.fi>
Date: Sun, 15 Mar 2026 09:54:31 +0200
Subject: refactor: simplify codebase and fix FileType autocommands

---
 lua/muwiki/utils.lua | 73 +++++++++++++++++++++++++++++++++-------------------
 1 file changed, 47 insertions(+), 26 deletions(-)

(limited to 'lua/muwiki/utils.lua')

diff --git a/lua/muwiki/utils.lua b/lua/muwiki/utils.lua
index af22c8e..bc6094e 100644
--- a/lua/muwiki/utils.lua
+++ b/lua/muwiki/utils.lua
@@ -1,25 +1,54 @@
 local config = require('muwiki.config')
-local paths = require('muwiki.paths')
 
 local M = {}
 
-function M.file_exists(path)
-  local stat = vim.uv.fs_stat(path)
-  return stat and stat.type == 'file'
+function M.open_in_buffer(filepath)
+  vim.cmd.edit(vim.fn.fnameescape(filepath))
 end
 
-function M.dir_exists(path)
-  local stat = vim.uv.fs_stat(path)
-  return stat and stat.type == 'directory'
+-- Lookup wiki path by name (e.g., "default" -> "~/wiki/")
+function M.wiki_path(name)
+  if not config.options.dirs or #config.options.dirs == 0 then
+    vim.notify('MuWiki: No dirs configured. See :help muwiki-configuration', vim.log.levels.ERROR)
+    return nil
+  end
+
+  if name then
+    for _, dir in ipairs(config.options.dirs) do
+      if dir.name == name then
+        return dir.path
+      end
+    end
+    vim.notify(string.format('Wiki "%s" not found, using default', name), vim.log.levels.WARN)
+  end
+
+  return config.options.dirs[1].path
 end
 
-function M.open_in_buffer(filepath)
-  local bufnr = vim.fn.bufnr(filepath, true)
-  vim.api.nvim_win_set_buf(0, bufnr)
+-- Find which wiki contains this buffer's file (cached per-buffer)
+function M.wiki_root(bufnr)
+  bufnr = bufnr or 0
+
+  if vim.b[bufnr].muwiki_root ~= nil then
+    return vim.b[bufnr].muwiki_root or nil
+  end
+
+  local filepath = vim.api.nvim_buf_get_name(bufnr)
+  local normalized = vim.fs.normalize(filepath)
+
+  for _, dir in ipairs(config.options.dirs or {}) do
+    if vim.startswith(normalized, dir.path) then
+      vim.b[bufnr].muwiki_root = dir.path
+      return dir.path
+    end
+  end
+
+  vim.b[bufnr].muwiki_root = false
+  return nil
 end
 
 function M.open_index(name)
-  local wiki_path = config.wiki_path(name)
+  local wiki_path = M.wiki_path(name)
   if not wiki_path then
     return
   end
@@ -29,18 +58,14 @@ function M.open_index(name)
 end
 
 function M.resolve(filepath, wiki_root)
-  local path = paths.strip_file_protocol(filepath)
-  return paths.resolve(path, wiki_root)
-end
-
-function M.is_text_file(ext)
-  local ext_lower = ext:lower()
-  for _, text_ext in ipairs(config.options.text_extensions) do
-    if ext_lower == text_ext then
-      return true
-    end
+  local path = filepath:gsub('^file://', '')
+  local path_type = path:sub(1, 1)
+  if path_type ~= '/' and path_type ~= '~' then
+    local base = wiki_root and vim.fs.dirname(wiki_root)
+        or vim.fs.dirname(vim.api.nvim_buf_get_name(0))
+    path = vim.fs.joinpath(base, path)
   end
-  return false
+  return vim.fs.normalize(path)
 end
 
 function M.normalize_filename(text)
@@ -50,8 +75,4 @@ function M.normalize_filename(text)
   return normalized
 end
 
-function M.open_wiki_file(filepath)
-  M.open_in_buffer(filepath)
-end
-
 return M
-- 
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