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local M = {}
_VT_NS = vim.api.nvim_create_namespace("lsp_signature")
local prescript
local prescript_hi
local due_hi
local ft
local future
local future_hi
local date_hi
local pattern_start
local pattern_end
local use_clock_time
local default_due_time
-- local date_pattern
local datetime_pattern
local datetime_pattern_match
local function parseDue(due)
local year = 31556926
local month = 2629743
local week = 604800
local day = 86400
local hour = 3600
local minute = 60
local res = ''
if due >= year then
res = res .. math.floor(due / year) .. 'y '
due = due % year
end
if due >= month then
res = res .. math.floor(due / month) .. 'm '
due = due % month
end
if due >= week then
res = res .. math.floor(due / week) .. 'w '
due = due % week
end
if use_clock_time == true then
if due >= day then
res = res .. math.floor(due / day) .. 'd '
due = due % day
end
if due >= hour then
res = res .. math.floor(due / hour) .. 'h '
due = due % hour
end
if due >= minute then
res = res .. math.floor(due / minute) .. 'min '
due = due % minute
end
else
res = res .. math.floor(due / day) + 1 .. 'd '
end
return res
end
function M.setup(c)
use_clock_time = c.use_clock_time or true
default_due_time = c.default_due_time or 'midnight'
prescript = c.prescript or 'has been: '
prescript_hi = c.prescript_hi or 'Comment'
due_hi = c.due_hi or 'String'
ft = c.ft or '*.wiki'
future = c.future or 'future'
future_hi = c.future_hi or 'Error'
date_hi = c.date_hi or 'Conceal'
pattern_start = c.pattern_start or '('
pattern_end = c.pattern_end or ')'
local lua_start = pattern_start:gsub("[%(%)%.%%%+%-%*%?%[%^%$%]]", "%%%1")
local lua_end = pattern_end:gsub("[%(%)%.%%%+%-%*%?%[%^%$%]]", "%%%1")
local regex_start = pattern_start:gsub("\\%^%$%.%*~%[%]&", "\\%1")
local regex_end = pattern_end:gsub("\\%^%$%.%*~%[%]&", "\\%1")
datetime_pattern = lua_start .. '%d%d%d%d%-%d%d%-%d%d %d%d:%d%d' .. lua_end
datetime_pattern_match = lua_start .. '(%d%d%d%d)%-(%d%d)%-(%d%d) (%d%d):(%d%d)' .. lua_end
local regex_hi = '/' .. regex_start .. '\\d*-*\\d\\+-\\d\\+' .. regex_end ..
'/'
vim.api.nvim_command('autocmd BufEnter ' .. ft ..
' lua require("stale").draw(0)')
vim.api.nvim_command('autocmd InsertLeave ' .. ft ..
' lua require("stale").redraw(0)')
vim.api.nvim_command('autocmd TextChanged ' .. ft ..
' lua require("stale").redraw(0)')
vim.api.nvim_command('autocmd TextChangedI ' .. ft ..
' lua require("stale").redraw(0)')
vim.api.nvim_command('autocmd BufEnter ' .. ft .. ' syn match DueDate ' ..
regex_hi ..
' display containedin=mkdNonListItemBlock,mkdListItemLine,mkdBlockquote contained')
vim.api.nvim_command('autocmd BufEnter ' .. ft .. ' hi def link DueDate ' ..
date_hi)
end
function M.draw(buf)
local user_time
local user_hour
local user_min
local user_sec = 00
-- get current time
local now = os.time(os.date('*t'))
-- find which date pattern is being passed in by user
for key, value in pairs(vim.api.nvim_buf_get_lines(buf, 0, -1, {})) do
local dateTime = string.match(value, datetime_pattern)
local due
if dateTime then
local cur_year, month, day, user_hour, user_min = dateTime:match(datetime_pattern_match)
user_time = os.time({
year = cur_year,
month = month,
day = day,
hour = user_hour,
min = user_min,
sec = user_sec
})
due = now - user_time
end
if due then
local parsed
if due > 0 then
parsed = { parseDue(due), due_hi }
else
parsed = { future, future_hi }
end
vim.api.nvim_buf_set_virtual_text(buf, _VT_NS, key - 1, {
{ prescript, prescript_hi }, parsed
}, {})
end
end
end
function M.clear(buf) vim.api.nvim_buf_clear_namespace(buf, _VT_NS, 0, -1) end
function M.redraw(buf)
M.clear(buf)
M.draw(buf)
end
return M
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