Big rewrite part 1

awesome/src/tools/parse_ical.lua

@@ -0,0 +1,108 @@
+local gfilesystem = require('gears.filesystem')
+
+local config = require('src.tools.config')
+
+local ical_cache_path = gfilesystem.get_configuration_dir() .. 'src/config/ical_cache.json'
+local ical_calendar_cache = {}
+
+local date_time = {}
+
+setmetatable(date_time, {
+  __call = function(args)
+    local dt = table.copy(date_time)
+
+    dt.day = args.day or 1
+    dt.month = args.month or 1
+    dt.year = args.year or 1970
+
+    dt.hour = args.hour or 0
+    dt.minute = args.minute or 0
+    dt.second = args.second or 0
+
+    return dt
+  end,
+  __newindex = function(self, ...)
+    if ... == 'weeknum' then
+      if not self.weeknum then
+        self.weeknum = 1 --TODO: calculate weeknum
+      end
+      return self.weeknum
+    end
+  end,
+  __add = function(a, b)
+    local dt = table.copy(date_time)
+    if type(a) == 'table' and type(b) == 'table' then
+
+    elseif type(a) == 'table' and type(b) == 'number' then
+
+    else
+      error('Cannot add number with date')
+    end
+  end,
+  __sub = function(a, b)
+
+  end,
+  __mul = function(a, b)
+
+  end,
+  __div = function(a, b)
+
+  end,
+});
+
+local parser = {}
+
+local instance = nil
+
+function parser:VEVENT()
+
+end
+
+---Start parsing a new calendar
+---@param path string path to .ical file
+function parser.parse(path)
+
+  local ical_name = path
+
+  -- Check if the calendar has been parsed previously
+  if ical_calendar_cache[ical_name] then
+    return ical_calendar_cache[ical_name]
+  else
+    -- If not create a new one in the cache
+    ical_calendar_cache[ical_name] = {}
+  end
+
+  return ical_calendar_cache[ical_name]
+end
+
+function parser.new(path)
+
+  -- Get the file from the path
+  local ical_name = path
+
+  -- Check if the calendar has been parsed previously
+  if ical_calendar_cache[ical_name] then
+    return ical_calendar_cache[ical_name]
+  end
+
+  -- If not create a new one in the cache
+  ical_calendar_cache[ical_name] = { mt = {} }
+
+  return ical_calendar_cache[ical_name]
+end
+
+if not instance then
+  instance = setmetatable(parser, {
+    -- If this module is called load all cached calendars from the cache
+    __call = function(self)
+      local cache_t = config.read_json(ical_cache_path)
+
+      -- Read all the calendars from the cache
+      for k, v in pairs(cache_t) do
+        self[k] = v
+      end
+    end,
+  })
+end
+
+return instance