#!/bin/bash
# Build a candidate "daily use" package list from two independent signals.
#
# Shell history alone is blind to anything started from the desktop menu, and a
# .desktop file alone says nothing about whether the thing is ever opened. Taken
# together they cover both halves: CLI tools by how often they were actually
# run, GUI applications by the fact that they were explicitly installed and ship
# a menu entry.
#
# Everything here is a candidate, not a decision. The point is to replace
# guessing about 512 packages with a list short enough to read.

set -u
OUT=/home/templis/.claude/jobs/e44cbeae/tmp
EXPLICIT=$(mktemp)
pacman -Qqe | sort -u > "$EXPLICIT"

# One pass over the file lists instead of one pacman -Qo per command: -Qo forks
# a lookup every time and takes minutes for 40 commands.
MAP="$OUT/file2pkg.txt"
pacman -Ql $(cat "$EXPLICIT") 2>/dev/null | awk '$2 ~ /\/(bin|sbin)\/[^\/]+$/ {n=split($2,a,"/"); print a[n], $1}' | sort -u > "$MAP"

# --- Signal 1: commands actually run, mapped to their package -------------
: > "$OUT/cli_pkgs.txt"
while read -r count cmd; do
    [ "${count:-0}" -lt 5 ] && continue
    pkg=$(awk -v c="$cmd" '$1 == c {print $2; exit}' "$MAP")
    [ -n "$pkg" ] && printf '%s\t%s\t%s\n' "$count" "$pkg" "$cmd"
done < /tmp/claude-1000/cmdfreq.txt | sort -rn -k1 > "$OUT/cli_pkgs.txt"

# --- Signal 2: explicitly installed packages that ship a menu entry -------
: > "$OUT/gui_pkgs.txt"
pacman -Qlq $(cat "$EXPLICIT") 2>/dev/null | grep -E '/usr/share/applications/[^/]+\.desktop$' > "$OUT/desktop_files.txt"
while read -r pkg; do
    if pacman -Qlq "$pkg" 2>/dev/null | grep -qE '/usr/share/applications/[^/]+\.desktop$'; then
        echo "$pkg"
    fi
done < "$EXPLICIT" > "$OUT/gui_pkgs.txt"

echo "CLI-Pakete aus History : $(awk '{print $2}' "$OUT/cli_pkgs.txt" | sort -u | wc -l)"
echo "GUI-Pakete mit Menue   : $(wc -l < "$OUT/gui_pkgs.txt")"
rm -f "$EXPLICIT"