#!/bin/bash
set -euo pipefail

AUR_DIR="$HOME/Aur"
EDITOR_CMD="${EDITOR:-nvim}"

ASK_EDIT=0
FORCE_EDIT=0
DOWNLOAD_ONLY=0

while getopts ":eEd" opt; do
    case "$opt" in
        e) ASK_EDIT=1 ;;
        E) FORCE_EDIT=1 ;;
        d) DOWNLOAD_ONLY=1 ;;
        *)
            echo "Usage: aurinstall [-e|-E] [-d] <paquet1> [paquet2 ...]"
            exit 1
            ;;
    esac
done
shift $((OPTIND - 1))

RESET='\033[0m'
BOLD='\033[1m'
RED='\033[1;31m'
GREEN='\033[1;32m'
YELLOW='\033[1;33m'
BLUE='\033[1;34m'
CYAN='\033[1;36m'

info()    { printf "${BLUE}==>${RESET} %s\n" "$1"; }
ok()      { printf "${GREEN}==>${RESET} %s\n" "$1"; }
warn()    { printf "${YELLOW}==>${RESET} %s\n" "$1"; }
error()   { printf "${RED}==>${RESET} %s\n" "$1"; }
section() { printf "\n${CYAN}${BOLD}>>> %s${RESET}\n" "$1"; }

if [[ $# -lt 1 ]]; then
    error "Usage: aurinstall [-e|-E] [-d] <paquet1> [paquet2 ...]"
    exit 1
fi

mkdir -p "$AUR_DIR"

if [[ "$DOWNLOAD_ONLY" -eq 0 ]]; then
    sudo -v || exit 1
    while true; do
        sudo -n true || exit
        sleep 30
    done 2>/dev/null &
    SUDO_LOOP_PID=$!
    trap 'kill "$SUDO_LOOP_PID" 2>/dev/null' EXIT INT TERM
fi

for pkg in "$@" ; do
    section "$pkg"
    cd "$AUR_DIR" || exit 1

    if [[ "$DOWNLOAD_ONLY" -eq 0 ]] && pacman -Q "$pkg" >/dev/null 2>&1; then
        warn "$pkg est déjà installé, on passe."
        continue
    fi

    if [[ -d "$pkg/.git" ]]; then
        warn "$pkg déjà cloné, utilisation du dossier existant"
        cd "$pkg" || { error "Impossible d'entrer dans $pkg"; continue; }

        pull_output=$(git pull --ff-only 2>&1) || {
            error "git pull failed pour $pkg"
            cd "$AUR_DIR" || exit 1
            continue
        }
        printf "%s\n" "$pull_output"
    else
        info "Clonage de $pkg"
        if ! git clone "https://aur.archlinux.org/${pkg}.git"; then
            error "Impossible de cloner $pkg"
            continue
        fi
        cd "$pkg" || { error "Impossible d'entrer dans $pkg"; continue; }
    fi

    if [[ "$FORCE_EDIT" -eq 1 ]]; then
        info "Ouverture de PKGBUILD et .SRCINFO dans $EDITOR_CMD"
        "$EDITOR_CMD" PKGBUILD .SRCINFO
    elif [[ "$ASK_EDIT" -eq 1 || "$DOWNLOAD_ONLY" -eq 1 ]]; then
        printf "${YELLOW}Éditer PKGBUILD/.SRCINFO pour %s ? [y/N] ${RESET}" "$pkg"
        read -r ans
        if [[ "$ans" == "y" || "$ans" == "Y" ]]; then
            "$EDITOR_CMD" PKGBUILD .SRCINFO
        fi
    fi

    if [[ "$DOWNLOAD_ONLY" -eq 1 ]]; then
        ok "$pkg prêt pour audit dans $AUR_DIR/$pkg"
        continue
    fi

    info "Vérifie au minimum source=(), checksums, prepare()/build()/package() et validpgpkeys si présents"
    rm -f ./*.pkg.tar ./*.pkg.tar.*

    if ! makepkg -sf; then
        error "Build failed pour $pkg"
        cd "$AUR_DIR" || exit 1
        continue
    fi

    pkgfile=$(find . -maxdepth 1 -type f \( -name '*.pkg.tar' -o -name '*.pkg.tar.*' \) ! -name '*.sig' | head -n1 || true)
    echo "DEBUG: pkgfile='$pkgfile'"
    if [[ -z "$pkgfile" ]]; then
        error "Aucun paquet généré pour $pkg"
        cd "$AUR_DIR" || exit 1
        continue
    fi

    info "Installation de $pkgfile"
    if ! sudo pacman -U --noconfirm "$pkgfile"; then
        error "Install failed pour $pkg"
        cd "$AUR_DIR" || exit 1
        continue
    fi

    ok "$pkg installé avec succès"
done