Date Searching (#487)

Author: chuck-flowers

lua/orgmode/objects/date.lua

@@ -25,7 +25,28 @@ local time_format = '%H:%M'
 ---@field related_date_range Date
 ---@field dayname string
 ---@field adjustments string[]
-local Date = {}
+local Date = {
+  ---@type fun(this: Date, other: Date): boolean
+  __eq = function(this, other)
+    return this.timestamp == other.timestamp
+  end,
+  ---@type fun(this: Date, other: Date): boolean
+  __lt = function(this, other)
+    return this.timestamp < other.timestamp
+  end,
+  ---@type fun(this: Date, other: Date): boolean
+  __le = function(this, other)
+    return this.timestamp <= other.timestamp
+  end,
+  ---@type fun(this: Date, other: Date): boolean
+  __gt = function(this, other)
+    return this.timestamp > other.timestamp
+  end,
+  ---@type fun(this: Date, other: Date): boolean
+  __ge = function(this, other)
+    return this.timestamp >= other.timestamp
+  end,
+}
 
 ---@param source table
 ---@param target? table
@@ -166,6 +187,12 @@ local function today(data)
   return Date:new(opts)
 end
 
+---@return Date
+local function tomorrow()
+  local today_date = today()
+  return today_date:adjust('+1d')
+end
+
 ---@param data? table
 ---@return Date
 local function now(data)
@@ -909,6 +936,7 @@ return {
   from_string = from_string,
   now = now,
   today = today,
+  tomorrow = tomorrow,
   parse_all_from_line = parse_all_from_line,
   is_valid_date = is_valid_date,
   is_date_instance = is_date_instance,

lua/orgmode/parser/file.lua

@@ -205,9 +205,17 @@ function File:apply_search(search, todo_only)
     if item:is_archived() or (todo_only and not item:is_todo()) then
       return false
     end
+
+    local deadline = item:get_deadline_date()
+    local scheduled = item:get_scheduled_date()
+    local closed = item:get_closed_date()
+
     return search:check({
       props = vim.tbl_extend('keep', {}, item.properties.items, {
         category = item.category,
+        deadline = deadline and deadline:to_wrapped_string(true),
+        scheduled = scheduled and scheduled:to_wrapped_string(true),
+        closed = closed and closed:to_wrapped_string(false),
       }),
       tags = item.tags,
       todo = item.todo_keyword.value,