pending.nvim/lua/pending/diff.lua
Barrett Ruth fc4a47a1ec feat(init): multi-level priority with <C-a>/<C-x>
Problem: priority was binary (0 or 1), toggled with !, with no way
to express finer gradations or use Vim's native increment idiom.

Solution: replace toggle_priority with change_priority(delta) which
clamps to floor 0. Display format changes from '! ' to '[N] ' so any
integer level is representable. Parser updated to extract numeric
level from the [N] prefix. Visual g<C-a>/g<C-x> apply the delta to
all tasks in the selection. <Plug>(pending-priority) replaced with
<Plug>(pending-priority-up) and <Plug>(pending-priority-down).
2026-02-24 22:20:18 -05:00

148 lines
3.6 KiB
Lua

local config = require('pending.config')
local parse = require('pending.parse')
local store = require('pending.store')
---@class pending.ParsedEntry
---@field type 'task'|'header'|'blank'
---@field id? integer
---@field description? string
---@field priority? integer
---@field category? string
---@field due? string
---@field lnum integer
---@class pending.diff
local M = {}
---@return string
local function timestamp()
return os.date('!%Y-%m-%dT%H:%M:%SZ') --[[@as string]]
end
---@param lines string[]
---@return pending.ParsedEntry[]
function M.parse_buffer(lines)
local result = {}
local current_category = nil
for i, line in ipairs(lines) do
local id, body = line:match('^/(%d+)/( .+)$')
if not id then
body = line:match('^( .+)$')
end
if line == '' then
table.insert(result, { type = 'blank', lnum = i })
elseif id or body then
local stripped = body:match('^ (.+)$') or body
local prio_str = stripped:match('^%[(%d+)%] ')
local priority = 0
if prio_str then
priority = tonumber(prio_str)
stripped = stripped:sub(#prio_str + 4)
end
local description, metadata = parse.body(stripped)
if description and description ~= '' then
table.insert(result, {
type = 'task',
id = id and tonumber(id) or nil,
description = description,
priority = priority,
category = metadata.cat or current_category or config.get().default_category,
due = metadata.due,
lnum = i,
})
end
elseif line:match('^%S') then
current_category = line
table.insert(result, { type = 'header', category = line, lnum = i })
end
end
return result
end
---@param lines string[]
function M.apply(lines)
local parsed = M.parse_buffer(lines)
local now = timestamp()
local data = store.data()
local old_by_id = {}
for _, task in ipairs(data.tasks) do
if task.status ~= 'deleted' then
old_by_id[task.id] = task
end
end
local seen_ids = {}
local order_counter = 0
for _, entry in ipairs(parsed) do
if entry.type ~= 'task' then
goto continue
end
order_counter = order_counter + 1
if entry.id and old_by_id[entry.id] then
if seen_ids[entry.id] then
store.add({
description = entry.description,
category = entry.category,
priority = entry.priority,
due = entry.due,
order = order_counter,
})
else
seen_ids[entry.id] = true
local task = old_by_id[entry.id]
local changed = false
if task.description ~= entry.description then
task.description = entry.description
changed = true
end
if task.category ~= entry.category then
task.category = entry.category
changed = true
end
if task.priority ~= entry.priority then
task.priority = entry.priority
changed = true
end
if task.due ~= entry.due then
task.due = entry.due
changed = true
end
if task.order ~= order_counter then
task.order = order_counter
changed = true
end
if changed then
task.modified = now
end
end
else
store.add({
description = entry.description,
category = entry.category,
priority = entry.priority,
due = entry.due,
order = order_counter,
})
end
::continue::
end
for id, task in pairs(old_by_id) do
if not seen_ids[id] then
task.status = 'deleted'
task['end'] = now
task.modified = now
end
end
store.save()
end
return M