feat: add markdown detail buffer for task notes
Problem: tasks only have a one-line description. There is no way to attach extended notes, checklists, or context to a task. Solution: add `ge` keymap to open a `pending://task/<id>` markdown buffer that replaces the task list in the same split. The buffer shows a read-only metadata header (status, priority, category, due, recurrence) rendered via extmarks, a `---` separator, and editable notes below. `:w` saves notes to a new top-level `notes` field on the task stored in the single `tasks.json`. `q` returns to the task list.
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7 changed files with 298 additions and 0 deletions
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@ -584,6 +584,7 @@ local function setup_highlights()
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vim.api.nvim_set_hl(0, 'PendingFilter', { link = 'DiagnosticWarn', default = true })
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vim.api.nvim_set_hl(0, 'PendingForge', { link = 'DiagnosticInfo', default = true })
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vim.api.nvim_set_hl(0, 'PendingForgeClosed', { link = 'Comment', default = true })
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vim.api.nvim_set_hl(0, 'PendingDetailMeta', { link = 'Comment', default = true })
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end
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---@return string
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@ -805,4 +806,213 @@ function M.open()
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return task_bufnr
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end
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local ns_detail = vim.api.nvim_create_namespace('pending_detail')
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local DETAIL_SEPARATOR = '---'
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---@type integer?
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local _detail_bufnr = nil
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---@type integer?
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local _detail_task_id = nil
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---@return integer?
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function M.detail_bufnr()
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return _detail_bufnr
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end
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---@return integer?
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function M.detail_task_id()
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return _detail_task_id
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end
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---@param bufnr integer
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---@param task pending.Task
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---@return nil
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local function apply_detail_extmarks(bufnr, task)
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vim.api.nvim_buf_clear_namespace(bufnr, ns_detail, 0, -1)
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local icons = config.get().icons
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local parts = {}
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local status_label = task.status or 'pending'
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local icon_char = icons[status_label] or icons.pending
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table.insert(parts, { 'Status: [' .. icon_char .. '] ' .. status_label, 'PendingDetailMeta' })
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if task.priority and task.priority > 0 then
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table.insert(parts, { ' ', 'Normal' })
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table.insert(
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parts,
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{ 'Priority: ' .. string.rep(icons.priority, task.priority), 'PendingDetailMeta' }
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)
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end
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local line2 = {}
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if task.category then
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table.insert(line2, { 'Category: ' .. task.category, 'PendingDetailMeta' })
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end
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if task.due then
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if #line2 > 0 then
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table.insert(line2, { ' ', 'Normal' })
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end
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local due_label = task.due
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local y, mo, d = task.due:match('^(%d%d%d%d)%-(%d%d)%-(%d%d)')
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if y then
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local t = os.time({
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year = tonumber(y) --[[@as integer]],
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month = tonumber(mo) --[[@as integer]],
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day = tonumber(d) --[[@as integer]],
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})
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due_label = os.date(config.get().date_format, t) --[[@as string]]
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end
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table.insert(line2, { 'Due: ' .. due_label, 'PendingDetailMeta' })
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end
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if task.recur then
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if #line2 > 0 then
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table.insert(line2, { ' ', 'Normal' })
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end
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table.insert(line2, { 'Recur: ' .. task.recur, 'PendingDetailMeta' })
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end
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if #parts > 0 then
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vim.api.nvim_buf_set_extmark(bufnr, ns_detail, 1, 0, {
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virt_text = parts,
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virt_text_pos = 'overlay',
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})
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end
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if #line2 > 0 then
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vim.api.nvim_buf_set_extmark(bufnr, ns_detail, 2, 0, {
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virt_text = line2,
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virt_text_pos = 'overlay',
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})
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end
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end
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---@param task_id integer
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---@return integer? bufnr
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function M.open_detail(task_id)
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if not _store then
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return nil
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end
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if _detail_bufnr and vim.api.nvim_buf_is_valid(_detail_bufnr) then
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if _detail_task_id == task_id then
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return _detail_bufnr
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end
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vim.api.nvim_buf_delete(_detail_bufnr, { force = true })
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_detail_bufnr = nil
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_detail_task_id = nil
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end
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local task = _store:get(task_id)
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if not task then
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log.warn('task not found: ' .. task_id)
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return nil
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end
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setup_highlights()
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local bufnr = vim.api.nvim_create_buf(true, false)
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vim.api.nvim_buf_set_name(bufnr, 'pending://task/' .. task_id)
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vim.bo[bufnr].buftype = 'acwrite'
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vim.bo[bufnr].filetype = 'markdown'
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vim.bo[bufnr].swapfile = false
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local lines = {
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'# ' .. task.description,
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'',
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'',
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DETAIL_SEPARATOR,
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}
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local notes = task.notes or ''
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if notes ~= '' then
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for note_line in (notes .. '\n'):gmatch('(.-)\n') do
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table.insert(lines, note_line)
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end
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else
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table.insert(lines, '')
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end
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vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
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vim.bo[bufnr].modified = false
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apply_detail_extmarks(bufnr, task)
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local winid = task_winid
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if winid and vim.api.nvim_win_is_valid(winid) then
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vim.api.nvim_win_set_buf(winid, bufnr)
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end
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vim.wo[winid].conceallevel = 0
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vim.wo[winid].foldmethod = 'manual'
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vim.wo[winid].foldenable = false
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_detail_bufnr = bufnr
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_detail_task_id = task_id
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local separator_row = 3
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local cursor_row = separator_row + 2
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local total = vim.api.nvim_buf_line_count(bufnr)
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if cursor_row > total then
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cursor_row = total
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end
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pcall(vim.api.nvim_win_set_cursor, winid, { cursor_row, 0 })
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return bufnr
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end
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---@return nil
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function M.close_detail()
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if _detail_bufnr and vim.api.nvim_buf_is_valid(_detail_bufnr) then
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vim.api.nvim_buf_delete(_detail_bufnr, { force = true })
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end
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_detail_bufnr = nil
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_detail_task_id = nil
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if task_winid and vim.api.nvim_win_is_valid(task_winid) then
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if task_bufnr and vim.api.nvim_buf_is_valid(task_bufnr) then
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vim.api.nvim_win_set_buf(task_winid, task_bufnr)
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set_win_options(task_winid)
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M.render(task_bufnr)
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end
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end
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end
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---@return nil
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function M.save_detail()
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if not _detail_bufnr or not _detail_task_id or not _store then
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return
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end
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local task = _store:get(_detail_task_id)
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if not task then
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log.warn('task was deleted')
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M.close_detail()
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return
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end
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local lines = vim.api.nvim_buf_get_lines(_detail_bufnr, 0, -1, false)
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local sep_row = nil
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for i, line in ipairs(lines) do
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if line == DETAIL_SEPARATOR then
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sep_row = i
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break
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end
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end
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local notes_text = ''
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if sep_row and sep_row < #lines then
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local note_lines = {}
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for i = sep_row + 1, #lines do
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table.insert(note_lines, lines[i])
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end
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notes_text = table.concat(note_lines, '\n')
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notes_text = notes_text:gsub('%s+$', '')
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end
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if notes_text == '' then
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_store:update(_detail_task_id, { notes = vim.NIL })
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else
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_store:update(_detail_task_id, { notes = notes_text })
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end
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_store:save()
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vim.bo[_detail_bufnr].modified = false
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local updated = _store:get(_detail_task_id)
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if updated then
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apply_detail_extmarks(_detail_bufnr, updated)
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end
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end
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return M
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