feat: complete rework

Author: Saghen

lua/blink/cmp/accept.lua

@@ -0,0 +1,102 @@
+local utils = {}
+
+local function accept(item)
+  local sources = require('blink.cmp.sources')
+  local fuzzy = require('blink.cmp.fuzzy')
+
+  local text_edit = item.textEdit
+  if text_edit ~= nil then
+    -- Adjust the position of the text edit to be the current cursor position
+    -- since the data might be outdated. We compare the cursor column position
+    -- from when the items were fetched versus the current.
+    -- hack: figure out a better way
+    local offset = vim.api.nvim_win_get_cursor(0)[2] - item.cursor_column
+    text_edit.range['end'].character = text_edit.range['end'].character + offset
+  else
+    -- No text edit so we fallback to our own resolution
+    text_edit = utils.guess_text_edit(vim.api.nvim_get_current_buf(), item)
+  end
+
+  -- Snippet
+  if item.insertTextFormat == vim.lsp.protocol.InsertTextFormat.Snippet then
+    -- We want to handle offset_encoding and the text edit api can do this for us
+    -- so we empty the newText and apply
+    local temp_text_edit = vim.deepcopy(text_edit)
+    temp_text_edit.newText = ''
+    utils.apply_text_edits(item.client_id, { temp_text_edit })
+
+    -- Expand the snippet
+    -- todo: use the snippet plugin api
+    vim.snippet.expand(text_edit.newText)
+  else
+    -- Apply the text edit and move the cursor
+    utils.apply_text_edits(item.client_id, { text_edit })
+    vim.api.nvim_win_set_cursor(
+      0,
+      { text_edit.range.start.line + 1, text_edit.range.start.character + #text_edit.newText }
+    )
+  end
+
+  -- Apply additional text edits
+  -- LSPs can either include these in the initial response or require a resolve
+  -- These are used for things like auto-imports
+  -- todo: check capabilities to know ahead of time
+  if item.additionalTextEdits ~= nil then
+    utils.apply_text_edits(item.client_id, item.additionalTextEdits)
+  else
+    sources.resolve(
+      item,
+      function(resolved_item) utils.apply_text_edits(item.client_id, resolved_item.additionalTextEdits or {}) end
+    )
+  end
+
+  -- Notify the rust module that the item was accessed
+  fuzzy.access(item.label)
+end
+
+---------- UTILS ------------
+
+function utils.guess_text_edit(bufnr, item)
+  local word = item.insertText or item.label
+
+  local current_line = vim.api.nvim_win_get_cursor(0)[1]
+  local current_col = vim.api.nvim_win_get_cursor(0)[2]
+  local line = vim.api.nvim_buf_get_lines(bufnr, current_line - 1, current_line, false)[1]
+
+  -- Search forward/backward for the start/end of the word
+  local start_col = current_col
+  while start_col > 1 do
+    local char = line:sub(start_col, start_col)
+    if char:match('[%w_\\-]') == nil then
+      start_col = start_col + 1
+      break
+    end
+    start_col = start_col - 1
+  end
+
+  -- todo: dont search forward since LSPs dont typically do this so it will be inconsistent
+  local end_col = current_col
+  while end_col < #line do
+    local char = line:sub(end_col + 1, end_col + 1)
+    if char:match('[%w_\\-]') == nil then break end
+    end_col = end_col + 1
+  end
+
+  -- convert to 0-index
+  return {
+    range = {
+      start = { line = current_line - 1, character = start_col - 1 },
+      ['end'] = { line = current_line - 1, character = end_col },
+    },
+    newText = word,
+  }
+end
+
+function utils.apply_text_edits(client_id, edits)
+  local client = vim.lsp.get_client_by_id(client_id)
+  vim.print(vim.inspect(client_id))
+  local offset_encoding = client ~= nil and client.offset_encoding or 'utf-16'
+  vim.lsp.util.apply_text_edits(edits, vim.api.nvim_get_current_buf(), offset_encoding)
+end
+
+return accept