feat(airc daemon): Windows support via HKCU Run-key autostart (no admin)

airc

@@ -4856,6 +4856,7 @@ _daemon_os() {
         echo "linux"
       fi
       ;;
+    MINGW*|MSYS*|CYGWIN*) echo "windows" ;;
     *) echo "unknown" ;;
   esac
 }
@@ -4893,6 +4894,8 @@ _daemon_installed() {
       [ -f "$HOME/Library/LaunchAgents/com.cambriantech.airc.plist" ] && return 0 ;;
     linux|wsl)
       [ -f "$HOME/.config/systemd/user/airc.service" ] && return 0 ;;
+    windows)
+      reg query "HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run" //v airc-monitor >/dev/null 2>&1 && return 0 ;;
   esac
   return 1
 }
@@ -4906,6 +4909,7 @@ cmd_daemon_install() {
   case "$os" in
     darwin) _daemon_install_launchd "$airc_bin" "$scope" ;;
     linux|wsl) _daemon_install_systemd "$airc_bin" "$scope" "$os" ;;
+    windows) _daemon_install_schtasks "$airc_bin" "$scope" ;;
     *) die "Daemon install not supported on $(uname -s). Manual workaround: run 'airc connect' under your platform's preferred autostart mechanism." ;;
   esac
 }
@@ -4970,6 +4974,94 @@ PLIST
   echo "        will pick up gh credentials on next restart."
 }
 
+_daemon_install_schtasks() {
+  # Windows daemon via HKCU Run key (no admin). Mirrors launchd /
+  # systemd: per-user autostart at logon, restarts airc connect on
+  # exit, logs to $scope/daemon.log. Joel 2026-04-28: "fix the monitor
+  # man / i cant go to bed till this is fixed" — Windows had no daemon
+  # path, `nohup airc connect &` doesn't survive the launching shell
+  # on MINGW64 (Git Bash kills the child when the parent bash exits).
+  #
+  # Why Run-key instead of Task Scheduler: schtasks //SC ONLOGON
+  # requires admin even for per-user tasks (UAC prompt + "Access is
+  # denied" without). HKCU\...\Run writes to user-scope hive, no admin,
+  # works identically (fires at user logon). Path-of-least-friction
+  # per Joel: "i just want whatever is least hassle and also robust".
+  local airc_bin="$1" scope="$2"
+  local entry_name="airc-monitor"
+
+  # Find Git Bash. The launcher .bat bridges from cmd.exe (Run key
+  # context) into bash (where airc actually runs).
+  local bash_exe=""
+  for c in 'C:\Program Files\Git\bin\bash.exe' 'C:\Program Files (x86)\Git\bin\bash.exe' "$HOME/AppData/Local/Programs/Git/bin/bash.exe"; do
+    local check_path; check_path=$(echo "$c" | sed 's|\\|/|g; s|^C:|/c|')
+    if [ -f "$c" ] || [ -f "$check_path" ]; then bash_exe="$c"; break; fi
+  done
+  [ -z "$bash_exe" ] && die "bash.exe not found at any standard Git for Windows path. Install Git for Windows + re-run."
+
+  # Convert paths to Windows form; cmd.exe can't read /c/Users/... .
+  local airc_bin_win scope_win
+  if command -v cygpath >/dev/null 2>&1; then
+    airc_bin_win=$(cygpath -w "$airc_bin")
+    scope_win=$(cygpath -w "$scope")
+  else
+    airc_bin_win=$(printf '%s' "$airc_bin" | sed 's|^/\([a-z]\)/|\U\1:\\\\|; s|/|\\\\|g')
+    scope_win=$(printf '%s' "$scope" | sed 's|^/\([a-z]\)/|\U\1:\\\\|; s|/|\\\\|g')
+  fi
+
+  # Stage a launcher .bat in $scope. Loops with 5s pause for airc-crash
+  # auto-restart (matches launchd KeepAlive=true / systemd Restart=always).
+  # Uses `start /B` for the bash invocation so the cmd.exe wrapper
+  # doesn't pop a visible console window at logon.
+  local launcher_bash="$scope/airc-daemon.bat"
+  cat > "$launcher_bash" <<EOF
+@echo off
+REM AIRC daemon launcher — generated by 'airc daemon install' on Windows.
+REM Runs airc connect under bash, restarting on exit. Logs to daemon.log.
+set AIRC_HOME=$scope_win
+set AIRC_BACKGROUND_OK=1
+:loop
+"$bash_exe" -lc "exec '$airc_bin_win' connect"
+echo [%date% %time%] airc connect exited. Restarting in 5s. >> "$scope_win\\daemon.err"
+timeout /t 5 /nobreak >nul
+goto loop
+EOF
+  local launcher_win
+  if command -v cygpath >/dev/null 2>&1; then
+    launcher_win=$(cygpath -w "$launcher_bash")
+  else
+    launcher_win=$(printf '%s' "$launcher_bash" | sed 's|^/\([a-z]\)/|\U\1:\\\\|; s|/|\\\\|g')
+  fi
+
+  # The Run-key value is what cmd.exe runs at user logon. We wrap with
+  # `cmd /c start "" /MIN ... ` so the daemon launches detached + with
+  # a minimized console window (still visible in taskbar but out of
+  # the way). Without /MIN the user gets a raw cmd window every login.
+  # The empty "" is the title slot for `start` (otherwise `start "path
+  # to bat"` interprets the path as the title).
+  local run_cmd="cmd /c start \"\" /MIN \"$launcher_win\""
+
+  # HKCU\Software\Microsoft\Windows\CurrentVersion\Run is the canonical
+  # per-user autostart hive on Windows. reg add overwrites any prior
+  # entry with /f (no prompt). Fully idempotent.
+  reg add "HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run" //v "$entry_name" //t REG_SZ //d "$run_cmd" //f >/dev/null 2>&1 \
+    || die "reg add failed for HKCU Run\\$entry_name"
+
+  # Start it now (detached) so the user doesn't have to logout/login.
+  # cmd /c start fires-and-forgets — returns immediately; the spawned
+  # bat keeps running independent of this shell.
+  cmd //c start "" //MIN "$launcher_win" >/dev/null 2>&1 || true
+
+  echo "  ✓ Registered HKCU Run entry '$entry_name' (runs at every Windows logon)"
+  echo "  ✓ Started monitor in detached cmd window (minimized)"
+  echo "  airc will now auto-start at login + restart on exit."
+  echo "  Logs:     $scope/daemon.log    (airc's own --background log)"
+  echo "  Errors:   $scope/daemon.err    (restart events, etc.)"
+  echo "  Launcher: $scope/airc-daemon.bat"
+  echo "  Status:   airc daemon status"
+  echo "  Stop:     airc daemon uninstall"
+}
+
 _daemon_install_systemd() {
   local airc_bin="$1" scope="$2" os="$3"
   local unit_dir="$HOME/.config/systemd/user"
@@ -5065,6 +5157,28 @@ cmd_daemon_uninstall() {
       [ -f "$unit_path" ] && rm "$unit_path" && systemctl --user daemon-reload && echo "  ✓ Removed $unit_path" \
         || echo "  (no unit on disk)"
       ;;
+    windows)
+      local entry_name="airc-monitor"
+      if reg query "HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run" //v "$entry_name" >/dev/null 2>&1; then
+        reg delete "HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run" //v "$entry_name" //f >/dev/null 2>&1 \
+          && echo "  ✓ Removed HKCU Run entry '$entry_name'" \
+          || echo "  (reg delete failed — try 'reg delete' manually)"
+      else
+        echo "  (no Run entry '$entry_name' registered)"
+      fi
+      # Kill any currently-running daemon-launched airc-connect tree.
+      # Match on the launcher .bat path so we don't kill foreground
+      # `airc join` running in the user's terminal.
+      local scope; scope=$(_daemon_scope)
+      if ps -ef 2>/dev/null | grep 'airc-daemon.bat' | grep -v grep >/dev/null; then
+        ps -ef | grep 'airc-daemon.bat' | grep -v grep | awk '{print $2}' | while read pid; do
+          kill "$pid" 2>/dev/null || true
+        done
+        echo "  ✓ Killed running daemon launcher process(es)"
+      fi
+      [ -f "$scope/airc-daemon.bat" ] && rm "$scope/airc-daemon.bat" \
+        && echo "  ✓ Removed $scope/airc-daemon.bat"
+      ;;
     *) echo "  Daemon uninstall not supported on $(uname -s)."; return 1 ;;
   esac
 }
@@ -5105,6 +5219,38 @@ cmd_daemon_status() {
         echo "  No daemon installed. Run: airc daemon install"
       fi
       ;;
+    windows)
+      local entry_name="airc-monitor"
+      if reg query "HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run" //v "$entry_name" >/dev/null 2>&1; then
+        echo "  Type:    HKCU Run-key (per-user logon autostart, no admin)"
+        echo "  Entry:   $entry_name"
+        local scope; scope=$(_daemon_scope)
+        echo "  Logs:    $scope/daemon.log"
+        echo "  Errors:  $scope/daemon.err"
+        echo "  Launcher: $scope/airc-daemon.bat"
+        # Is the daemon-launched airc actually running right now? The
+        # launcher .bat spawns bash + airc-connect then exits, so we
+        # look for the airc-connect process (PPID=1 = orphaned-into-
+        # init, which is what `start /B` produces on Windows). Falling
+        # back to airc.pid lookup if that fails.
+        local live_pid
+        live_pid=$(ps -ef 2>/dev/null | awk '$3 == 1 && /airc.*connect/ && !/grep/ {print $2; exit}')
+        if [ -z "$live_pid" ] && [ -f "$scope/airc.pid" ]; then
+          local pidfile_pid
+          pidfile_pid=$(head -1 "$scope/airc.pid" 2>/dev/null | tr -d '[:space:]')
+          if [ -n "$pidfile_pid" ] && kill -0 "$pidfile_pid" 2>/dev/null; then
+            live_pid="$pidfile_pid (from airc.pid)"
+          fi
+        fi
+        if [ -n "$live_pid" ]; then
+          echo "  Status:  RUNNING (PID $live_pid)"
+        else
+          echo "  Status:  registered (will start at next logon — or 'airc daemon install' to start now)"
+        fi
+      else
+        echo "  No daemon installed. Run: airc daemon install"
+      fi
+      ;;
     *) echo "  Daemon status not supported on $(uname -s)." ;;
   esac
 }