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-- Copyright 2025 David Vazgenovich Shakaryan
local epg = {}
local mt = {}
mt.__index = mt
function epg.new()
return setmetatable({channels = {}}, mt)
end
-- local (non-DST) offset from UTC
local tz_offset
do
local t = os.time()
tz_offset = os.time(os.date('*t', t)) - os.time(os.date('!*t', t))
end
local function parse_time(str)
local y, m, d, hh, mm, ss, zsign, zh, zm = str:match(
'(%d%d%d%d)(%d%d)(%d%d)(%d%d)(%d%d)(%d%d) ([+-])(%d%d)(%d%d)')
local dt = {
year = y, month = m, day = d,
hour = hh, min = mm, sec = ss, isdst = false}
return os.time(dt) + tz_offset -
(tonumber(zsign..zh) * 3600 + tonumber(zsign..zm) * 60)
end
function mt:load_xc_data(data)
for _, v in ipairs(data) do
local ch = v.channel:lower()
local prog = {
start = parse_time(v.start),
stop = parse_time(v.stop),
title = v.title,
desc = v.desc,
}
if self.channels[ch] then
self.channels[ch][#self.channels[ch]+1] = prog
else
self.channels[ch] = {prog}
end
end
for _, progs in pairs(self.channels) do
table.sort(progs, function(a, b)
return a.start < b.start
end)
end
end
function mt:channel_programmes(ch)
return self.channels[ch]
end
function mt:scheduled_programme(ch, time)
local progs = self.channels[ch]
if not progs then
return
end
for _, v in ipairs(progs) do
if time >= v.start and time < v.stop then
return v
end
end
end
return epg
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