From c4261ee98ef5fd75a208e8e981486ecb4dfcdafc Mon Sep 17 00:00:00 2001
From: historia <gravel.justness270@slmail.me>
Date: Wed, 31 Jul 2024 03:15:30 -0400
Subject: Implemented most ranges (missing Julian/Dategroups)

---
 src/then.nim | 103 +++++------------------------------------------------------
 1 file changed, 8 insertions(+), 95 deletions(-)

(limited to 'src')

diff --git a/src/then.nim b/src/then.nim
index a74a863..5395ca4 100644
--- a/src/then.nim
+++ b/src/then.nim
@@ -1,14 +1,13 @@
-import std/[times, os, strutils, strbasics, strscans, sets, re, tables], parseopt
+import std/[times, os, strutils, strbasics, strscans, sets, tables], parseopt
+import then/[conditions,typechecker]
 
 const VERSION = "0.1"
-const MONTHS   = DefaultLocale.MMM.toHashSet + DefaultLocale.MMMM.toHashSet
-const WEEKDAYS = DefaultLocale.ddd.toHashSet + DefaultLocale.dddd.toHashSet
 const configDir = expandTilde("~/.config/then/")
 const defaultConfigFile = configDir & "then.toml"
 const defaultCalendarFile = configDir & "calendar.then"
 
-# Forward declarations
-proc checkCond(cond: string, date: DateTime): bool
+const MONTHS   = DefaultLocale.MMM.toHashSet + DefaultLocale.MMMM.toHashSet
+const WEEKDAYS = DefaultLocale.ddd.toHashSet + DefaultLocale.dddd.toHashSet
 
 # Creates a default configuration file if it doesn't exist
 proc createDefaultConfigFile() =
@@ -53,104 +52,19 @@ proc printVersion() =
   echo "then " & VERSION
   quit()
 
-# Check an individual condition (Jan) and return the condition type (month)
-proc checkType(c: string): string =
-  var cond = c
-  if find(cond, re"^\d{4}$") > -1:             return "year"
-  if find(cond, re"^\d{1,2}$") > -1:           return "day"
-  if find(cond, re"^\dw$") > -1:               return "firstweek"
-  if find(cond, re"^\dl$") > -1:               return "lastweek"
-  if find(cond, re"^\([A-Za-z0-9 ]+\)$") > -1: return "dategroup"
-  if find(cond, re"^\d{4}-\d{4}$") > -1:       return "rangeyear"
-  if find(cond, re"^\d{1,2}-\d{1,2}$") > -1:   return "rangeday"
-  if find(cond, re"^\d{1,2}:\d{2}(-\d{1,2}:\d{2})?$") > -1:          return "time"
-  if find(cond, re"^\(?\s*[Jj]\s*%\s*\d+\s*([-+]\d+)?\s*\)?$") > -1: return "julian"
-  cond = cond.toLower.capitalizeAscii
-  if cond in MONTHS: return "month"
-  if cond in WEEKDAYS: return "dayofweek"
-
-  # Split c on - and check for ranges
-  let cs = cond.split("-", maxsplit = 1)
-  if cs.len != 2: return "unknown"
-  let startRange = cs[0].toLower.capitalizeAscii
-  let endRange   = cs[1].toLower.capitalizeAscii
-  if (startRange in MONTHS)   and (endRange in MONTHS):   return "rangemonth"
-  if (startRange in WEEKDAYS) and (endRange in WEEKDAYS): return "rangedayofweek"
-  if find(startRange, re"^\([A-Za-z0-9 ]+\)$") > -1 and find(endRange, re"^\([A-Za-z0-9 ]+\)$") > -1:
-    return "rangedategroup"
-  return "unknown"
-
-proc getWeekFromEnd(date: DateTime): int =
-  let daysInMonth = getDaysInMonth(date.month, date.year)
-  return int((daysInMonth - date.monthday) / 7) + 1
-
-proc getWeek(date: DateTime): int =
-  return int((date.monthDay - 1) / 7) + 1
-
-# Check each condition in a date group like (Jan 1 2025)
-proc checkDateGroup(s: string, date: DateTime): bool =
-  var conditions = s
-  let cs = conditions[1..conditions.len-2].splitWhitespace
-  for c in cs:
-    if checkCond(c, date) == false:
-      return false
-  return true
-
-proc checkRangeYear(s: string, date: DateTime): bool =
-  var years = s.split('-')
-  return date.year >= years[0] and date.year <= years[1]
-
-proc checkCond(cond: string, date: DateTime): bool =
-  var condition = cond
-  var invert = false
-  var found = false
-  if condition[0] == '!':
-    condition.delete(0..0)
-    invert = true
-  case checkType(condition):
-    of "time":
-      return true
-    of "year":
-      if parseInt(condition) == date.year:
-        found = true
-    of "day":
-      if condition == date.format("d") or condition == date.format("dd"):
-        found = true
-    of "month":
-      if condition == date.format("MMM") or condition == date.format("MMMM"):
-        found = true
-    of "dayofweek":
-      if condition == date.format("ddd") or condition == date.format("dddd"):
-        found = true
-    of "firstweek":
-      if parseInt(condition[0..1]) == getWeek(date):
-        found = true
-    of "lastweek":
-      if parseInt(condition[0..1]) == getWeekFromEnd(date):
-        found = true
-    of "dategroup":
-      found = checkDateGroup(condition, date)
-    of "rangeyear":
-      found = checkRangeYear(condition, date)
-    of "unknown":
-      echo "ERROR: Unknown condition: ", condition
-  if invert == true:
-    return not found
-  return found
-
 # Splits a string on whitespace, but maintains whitespace in date groups
 proc splitWhitespaceExceptParens(str:string): seq[string] =
-  var result: seq[string] = newSeq[string]()
+  var output: seq[string] = newSeq[string]()
   var inParens = false
   for token in str.splitWhitespace:
     if inParens:
-      result.add(result.pop & ' ' & token)
+      output.add(output.pop & ' ' & token)
     else:
-      result.add(token)
+      output.add(token)
     for c in token:
       if c == '(': inParens = true
       if c == ')': inParens = false
-  return result
+  return output
 
 # Returns Table[conditionType, seq of conditions]
 proc parseDateToTable(date:string): Table[string,seq[string]] =
@@ -177,7 +91,6 @@ proc getEvents(cal: seq[string], date: DateTime): seq[string] =
       for k,cs in conditions:
         var keyMatched = false
         for c in cs:
-          #var cond = c.toLower.capitalizeAscii
           if checkCond(c, date) == true:
             keyMatched = true
             break
-- 
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