feat: statusline API, counts, and PendingStatusChanged event (#40)

Problem: no way to know about overdue or due-today tasks without
opening :Pending. No ambient awareness for statusline plugins.

Solution: add counts(), statusline(), and has_due() public API
functions backed by a module-local cache that recomputes after every
store.save() and store.load(). Fire a User PendingStatusChanged event
on every recompute. Extract is_overdue() and is_today() from duplicate
locals into parse.lua as public functions. Refactor views.lua and
init.lua to use the shared date logic. Add vimdoc API section and
integration recipes for lualine, heirline, manual statusline, startup
notification, and event-driven refresh.
This commit is contained in:
Barrett Ruth 2026-02-26 16:30:06 -05:00
parent 92c2c670c5
commit cd1cd1afd4
6 changed files with 507 additions and 69 deletions

View file

@ -3,11 +3,97 @@ local diff = require('pending.diff')
local parse = require('pending.parse')
local store = require('pending.store')
---@class pending.Counts
---@field overdue integer
---@field today integer
---@field pending integer
---@field priority integer
---@field next_due? string
---@class pending.init
local M = {}
local UNDO_MAX = 20
---@type pending.Counts?
local _counts = nil
---@return nil
function M._recompute_counts()
local cfg = require('pending.config').get()
local someday = cfg.someday_date
local overdue = 0
local today = 0
local pending = 0
local priority = 0
local next_due = nil ---@type string?
local today_str = os.date('%Y-%m-%d') --[[@as string]]
for _, task in ipairs(store.active_tasks()) do
if task.status == 'pending' then
pending = pending + 1
if task.priority > 0 then
priority = priority + 1
end
if task.due and task.due ~= someday then
if parse.is_overdue(task.due) then
overdue = overdue + 1
elseif parse.is_today(task.due) then
today = today + 1
end
local date_part = task.due:match('^(%d%d%d%d%-%d%d%-%d%d)') or task.due
if date_part >= today_str and (not next_due or task.due < next_due) then
next_due = task.due
end
end
end
end
_counts = {
overdue = overdue,
today = today,
pending = pending,
priority = priority,
next_due = next_due,
}
vim.api.nvim_exec_autocmds('User', { pattern = 'PendingStatusChanged' })
end
---@return nil
local function _save_and_notify()
store.save()
M._recompute_counts()
end
---@return pending.Counts
function M.counts()
if not _counts then
store.load()
M._recompute_counts()
end
return _counts --[[@as pending.Counts]]
end
---@return string
function M.statusline()
local c = M.counts()
if c.overdue > 0 and c.today > 0 then
return c.overdue .. ' overdue, ' .. c.today .. ' today'
elseif c.overdue > 0 then
return c.overdue .. ' overdue'
elseif c.today > 0 then
return c.today .. ' today'
end
return ''
end
---@return boolean
function M.has_due()
local c = M.counts()
return c.overdue > 0 or c.today > 0
end
---@return integer bufnr
function M.open()
local bufnr = buffer.open()
@ -167,6 +253,7 @@ function M._on_write(bufnr)
table.remove(stack, 1)
end
diff.apply(lines)
M._recompute_counts()
buffer.render(bufnr)
end
@ -179,7 +266,7 @@ function M.undo_write()
end
local state = table.remove(stack)
store.replace_tasks(state)
store.save()
_save_and_notify()
buffer.render(buffer.bufnr())
end
@ -220,7 +307,7 @@ function M.toggle_complete()
end
store.update(id, { status = 'done' })
end
store.save()
_save_and_notify()
buffer.render(bufnr)
for lnum, m in ipairs(buffer.meta()) do
if m.id == id then
@ -251,7 +338,7 @@ function M.toggle_priority()
end
local new_priority = task.priority > 0 and 0 or 1
store.update(id, { priority = new_priority })
store.save()
_save_and_notify()
buffer.render(bufnr)
for lnum, m in ipairs(buffer.meta()) do
if m.id == id then
@ -294,7 +381,7 @@ function M.prompt_date()
end
end
store.update(id, { due = due })
store.save()
_save_and_notify()
buffer.render(bufnr)
end)
end
@ -319,7 +406,7 @@ function M.add(text)
recur = metadata.rec,
recur_mode = metadata.rec_mode,
})
store.save()
_save_and_notify()
local bufnr = buffer.bufnr()
if bufnr and vim.api.nvim_buf_is_valid(bufnr) then
buffer.render(bufnr)
@ -367,7 +454,7 @@ function M.archive(days)
::skip::
end
store.replace_tasks(kept)
store.save()
_save_and_notify()
vim.notify('Archived ' .. archived .. ' tasks.')
local bufnr = buffer.bufnr()
if bufnr and vim.api.nvim_buf_is_valid(bufnr) then
@ -375,44 +462,6 @@ function M.archive(days)
end
end
---@param due string
---@return boolean
local function is_due_or_overdue(due)
local now = os.date('*t') --[[@as osdate]]
local today = os.date('%Y-%m-%d') --[[@as string]]
local date_part, time_part = due:match('^(.+)T(.+)$')
if not date_part then
return due <= today
end
if date_part < today then
return true
end
if date_part > today then
return false
end
local current_time = string.format('%02d:%02d', now.hour, now.min)
return time_part <= current_time
end
---@param due string
---@return boolean
local function is_overdue(due)
local now = os.date('*t') --[[@as osdate]]
local today = os.date('%Y-%m-%d') --[[@as string]]
local date_part, time_part = due:match('^(.+)T(.+)$')
if not date_part then
return due < today
end
if date_part < today then
return true
end
if date_part > today then
return false
end
local current_time = string.format('%02d:%02d', now.hour, now.min)
return time_part < current_time
end
---@return nil
function M.due()
local bufnr = buffer.bufnr()
@ -422,9 +471,14 @@ function M.due()
if meta and bufnr then
for lnum, m in ipairs(meta) do
if m.type == 'task' and m.raw_due and m.status ~= 'done' and is_due_or_overdue(m.raw_due) then
if
m.type == 'task'
and m.raw_due
and m.status ~= 'done'
and (parse.is_overdue(m.raw_due) or parse.is_today(m.raw_due))
then
local task = store.get(m.id or 0)
local label = is_overdue(m.raw_due) and '[OVERDUE] ' or '[DUE] '
local label = parse.is_overdue(m.raw_due) and '[OVERDUE] ' or '[DUE] '
table.insert(qf_items, {
bufnr = bufnr,
lnum = lnum,
@ -436,8 +490,12 @@ function M.due()
else
store.load()
for _, task in ipairs(store.active_tasks()) do
if task.status == 'pending' and task.due and is_due_or_overdue(task.due) then
local label = is_overdue(task.due) and '[OVERDUE] ' or '[DUE] '
if
task.status == 'pending'
and task.due
and (parse.is_overdue(task.due) or parse.is_today(task.due))
then
local label = parse.is_overdue(task.due) and '[OVERDUE] ' or '[DUE] '
local text = label .. task.description
if task.category then
text = text .. ' [' .. task.category .. ']'

View file

@ -516,4 +516,39 @@ function M.command_add(text)
return M.body(text)
end
---@param due string
---@return boolean
function M.is_overdue(due)
local now = os.date('*t') --[[@as osdate]]
local today = os.date('%Y-%m-%d') --[[@as string]]
local date_part, time_part = due:match('^(.+)T(.+)$')
if not date_part then
return due < today
end
if date_part < today then
return true
end
if date_part > today then
return false
end
local current_time = string.format('%02d:%02d', now.hour, now.min)
return time_part < current_time
end
---@param due string
---@return boolean
function M.is_today(due)
local now = os.date('*t') --[[@as osdate]]
local today = os.date('%Y-%m-%d') --[[@as string]]
local date_part, time_part = due:match('^(.+)T(.+)$')
if not date_part then
return due == today
end
if date_part ~= today then
return false
end
local current_time = string.format('%02d:%02d', now.hour, now.min)
return time_part >= current_time
end
return M

View file

@ -503,6 +503,7 @@ function M.sync()
end
store.save()
require('pending')._recompute_counts()
vim.notify(
string.format(
'pending.nvim: Synced to Google Calendar (created: %d, updated: %d, deleted: %d)',

View file

@ -1,4 +1,5 @@
local config = require('pending.config')
local parse = require('pending.parse')
---@class pending.LineMeta
---@field type 'task'|'header'|'blank'
@ -40,25 +41,6 @@ local function format_due(due)
return formatted
end
---@param due string
---@return boolean
local function is_overdue(due)
local now = os.date('*t') --[[@as osdate]]
local today = os.date('%Y-%m-%d') --[[@as string]]
local date_part, time_part = due:match('^(.+)T(.+)$')
if not date_part then
return due < today
end
if date_part < today then
return true
end
if date_part > today then
return false
end
local current_time = string.format('%02d:%02d', now.hour, now.min)
return time_part < current_time
end
---@param tasks pending.Task[]
local function sort_tasks(tasks)
table.sort(tasks, function(a, b)
@ -174,7 +156,8 @@ function M.category_view(tasks)
raw_due = task.due,
status = task.status,
category = cat,
overdue = task.status == 'pending' and task.due ~= nil and is_overdue(task.due) or nil,
overdue = task.status == 'pending' and task.due ~= nil and parse.is_overdue(task.due)
or nil,
recur = task.recur,
})
end
@ -224,7 +207,7 @@ function M.priority_view(tasks)
raw_due = task.due,
status = task.status,
category = task.category,
overdue = task.status == 'pending' and task.due ~= nil and is_overdue(task.due) or nil,
overdue = task.status == 'pending' and task.due ~= nil and parse.is_overdue(task.due) or nil,
show_category = true,
recur = task.recur,
})