diff options
Diffstat (limited to 'epg.lua')
| -rw-r--r-- | epg.lua | 69 |
1 files changed, 69 insertions, 0 deletions
@@ -0,0 +1,69 @@ +-- 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 |