replace cronjob to own solution

Dockerfile

@@ -1,23 +1,13 @@
-# Dockerfile - FPC Discord bot SSL támogatással
 FROM debian:12-slim
 
 RUN apt-get update && apt-get install -y \
-    fpc fp-units-fcl fp-units-net tzdata curl jq \
+    fpc fp-units-fcl fp-units-net tzdata \
     libssl3 libssl-dev \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 COPY statusbot.pas .
 
-# Fordítás
 RUN fpc statusbot.pas
 
-# Cron telepítése
-RUN apt-get update && apt-get install -y cron && apt-get clean && rm -rf /var/lib/apt/lists/*
-
-# Cron fájl másolása
-COPY cronjob /etc/cron.d/discord-cron
-RUN chmod 0644 /etc/cron.d/discord-cron && crontab /etc/cron.d/discord-cron
-
-# Konténer mindig fusson, cron háttérben
-CMD ["cron", "-f"]
+CMD ["./statusbot"]

cronjob

@@ -1,2 +0,0 @@
-# cronjob - minden kedd 9:00 magyar idő szerint
-0 9 * * 2 root TZ=Europe/Budapest /app/statusbot

docker-compose.yml

@@ -2,7 +2,9 @@ services:
   statusbot:
     build: .
     container_name: statusbot
+    restart: unless-stopped
     environment:
+      RUN_AT: "${RUN_AT}"
       DISCORD_BOT_TOKEN: "${DISCORD_BOT_TOKEN}"
       DISCORD_CHANNEL_ID: "${DISCORD_CHANNEL_ID}"
       THREAD_NAME: "${THREAD_NAME}"

env-example

@@ -1,3 +1,4 @@
+RUN_AT=3:9:0
 DISCORD_BOT_TOKEN=DISCORD_BOT_TOKEN
 DISCORD_CHANNEL_ID=DISCORD_CHANNEL_ID
 ARCHIVE_DURATION=10080

statusbot.pas

@@ -1,6 +1,6 @@
 program DiscordCreateThread;
 {$MODE OBJFPC}
-{$H+}  // Enable AnsiString
+{$H+}
 uses
   SysUtils, Classes, fphttpclient, opensslsockets, DateUtils;
 
@@ -49,12 +49,12 @@ begin
   end;
 end;
 
+procedure RunCore;
 var
   Token, ChannelID, ThreadMessage: string;
   ThreadBody, MessageBody, Response: string;
   ThreadIDStart, ThreadIDEnd: Integer;
   ThreadID: string;
-
 begin
   Token := GetEnvironmentVariable('DISCORD_BOT_TOKEN');
   ChannelID := GetEnvironmentVariable('DISCORD_CHANNEL_ID');
@@ -62,12 +62,11 @@ begin
 
   ThreadBody := Format(
     '{"name":"%s","auto_archive_duration":%d}',
-    [StringReplace(GetThreadName,'"','\"',[rfReplaceAll]), GetArchiveDuration]
+    [StringReplace(GetThreadName, '"', '\"', [rfReplaceAll]), GetArchiveDuration]
   );
 
   Response := HttpPost(DISCORD_API + '/channels/' + ChannelID + '/threads', ThreadBody, Token);
 
-  // egyszerű parsing az id kinyeréséhez
   ThreadIDStart := Pos('"id":"', Response);
   if ThreadIDStart > 0 then
   begin
@@ -77,8 +76,122 @@ begin
 
     if ThreadID <> '' then
     begin
-      MessageBody := Format('{"content":"%s"}',[StringReplace(ThreadMessage,'"','\"',[rfReplaceAll])]);
+      MessageBody := Format('{"content":"%s"}', [StringReplace(ThreadMessage, '"', '\"', [rfReplaceAll])]);
       HttpPost(DISCORD_API + '/channels/' + ThreadID + '/messages', MessageBody, Token);
     end;
   end;
+end;
+
+// RUN_AT format: "<day_of_week>:<hour>:<minute>"
+// day_of_week: 1=Sunday, 2=Monday, 3=Tuesday, 4=Wednesday, 5=Thursday, 6=Friday, 7=Saturday
+function ParseRunAt(out TargetDow, TargetHour, TargetMinute: Integer): Boolean;
+var
+  RunAt: string;
+  Parts: TStringList;
+begin
+  ParseRunAt := False;
+  RunAt := GetEnvironmentVariable('RUN_AT');
+  if RunAt = '' then Exit;
+
+  Parts := TStringList.Create;
+  try
+    Parts.Delimiter := ':';
+    Parts.StrictDelimiter := True;
+    Parts.DelimitedText := RunAt;
+
+    if Parts.Count < 3 then Exit;
+
+    TargetDow    := StrToIntDef(Parts[0], -1);
+    TargetHour   := StrToIntDef(Parts[1], -1);
+    TargetMinute := StrToIntDef(Parts[2], -1);
+
+    if (TargetDow < 1) or (TargetDow > 7) then Exit;
+    if (TargetHour < 0) or (TargetHour > 23) then Exit;
+    if (TargetMinute < 0) or (TargetMinute > 59) then Exit;
+
+    ParseRunAt := True;
+  finally
+    Parts.Free;
+  end;
+end;
+
+function ShouldFire(TargetDow, TargetHour, TargetMinute: Integer): Boolean;
+var
+  H, M, S, MS: Word;
+begin
+  DecodeTime(SysUtils.Now, H, M, S, MS);
+  ShouldFire := (DayOfWeek(SysUtils.Now) = TargetDow) and
+                (Integer(H) = TargetHour) and
+                (Integer(M) = TargetMinute);
+end;
+
+const
+  DAY_NAMES: array[1..7] of string = (
+    'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'
+  );
+
+var
+  Fired: Boolean;
+  LastCheckedMinute: Integer;
+  CurrentMinute: Integer;
+  H, M, S, MS: Word;
+  TargetDow, TargetHour, TargetMinute: Integer;
+
+begin
+  if not ParseRunAt(TargetDow, TargetHour, TargetMinute) then
+  begin
+    WriteLn('Error: RUN_AT environment variable is not set or invalid.');
+    WriteLn('Format: RUN_AT=<day_of_week>:<hour>:<minute>');
+    WriteLn('Example (Tuesday 9:00): RUN_AT=3:9:0');
+    Halt(1);
+  end;
+
+  WriteLn('===========================================');
+  WriteLn('  Discord Thread Scheduler');
+  WriteLn('===========================================');
+  WriteLn(Format('  Started at : %s', [FormatDateTime('yyyy-mm-dd hh:nn:ss', SysUtils.Now)]));
+  WriteLn(Format('  Channel ID : %s', [GetEnvironmentVariable('DISCORD_CHANNEL_ID')]));
+  WriteLn(Format('  Thread name: %s', [GetEnvironmentVariable('THREAD_NAME')]));
+  WriteLn(Format('  Fires every: %s at %02d:%02d', [DAY_NAMES[TargetDow], TargetHour, TargetMinute]));
+  WriteLn('===========================================');
+
+  Fired := False;
+  LastCheckedMinute := -1;
+
+  while True do
+  begin
+    DecodeTime(SysUtils.Now, H, M, S, MS);
+    CurrentMinute := Integer(H) * 60 + Integer(M);
+
+    if CurrentMinute <> LastCheckedMinute then
+    begin
+      LastCheckedMinute := CurrentMinute;
+
+      WriteLn(Format('[%s] Current time: %s | Waiting for: %s %02d:%02d',
+        [FormatDateTime('yyyy-mm-dd hh:nn', SysUtils.Now),
+         FormatDateTime('ddd hh:nn', SysUtils.Now),
+         DAY_NAMES[TargetDow], TargetHour, TargetMinute]));
+
+      if ShouldFire(TargetDow, TargetHour, TargetMinute) then
+      begin
+        if not Fired then
+        begin
+          WriteLn(Format('[%s] Trigger matched, running core...',
+            [FormatDateTime('yyyy-mm-dd hh:nn', SysUtils.Now)]));
+          try
+            RunCore;
+            WriteLn('Core executed successfully.');
+          except
+            on E: Exception do
+              WriteLn('Error: ', E.Message);
+          end;
+          Fired := True;
+        end;
+      end
+      else
+        Fired := False;
+    end;
+
+    Sleep(10000);
+  end;
 end.