# ABOUTME: Post-install hooks for moonarch-git package.
# ABOUTME: Handles zsh integration and configs owned by other packages.

post_install() {
    # Zsh integration: source moonarch defaults for users without ~/.zshrc
    if ! grep -q "zshrc.moonarch" /etc/zsh/zshrc 2>/dev/null; then
        echo '# Moonarch defaults (overridden by ~/.zshrc)' >> /etc/zsh/zshrc
        echo '[[ ! -f "$HOME/.zshrc" ]] && source /etc/zsh/zshrc.moonarch' >> /etc/zsh/zshrc
    fi

    # Deploy greetd config (file owned by greetd package, overwrite deliberately)
    if [ -d /etc/greetd ]; then
        cp /usr/share/moonarch/greetd/config.toml /etc/greetd/config.toml
        cp /usr/share/moonarch/greetd/niri-greeter.kdl /etc/greetd/niri-greeter.kdl
    fi

    # Deploy moongreet config (file owned by moongreet-git, overwrite deliberately)
    if [ -d /etc/moongreet ]; then
        cp /usr/share/moonarch/moongreet/moongreet.toml /etc/moongreet/moongreet.toml
    fi

    # Deploy foot config (file owned by foot package, overwrite deliberately)
    cp /usr/share/moonarch/foot/foot.ini /etc/xdg/foot/foot.ini

    # Deploy waybar style (file owned by waybar package, overwrite deliberately)
    cp /usr/share/moonarch/waybar/style.css /etc/xdg/waybar/style.css

    # Deploy swaync config (files owned by swaync package, overwrite deliberately)
    cp /usr/share/moonarch/swaync/config.json /etc/xdg/swaync/config.json
    cp /usr/share/moonarch/swaync/style.css /etc/xdg/swaync/style.css

    # Deploy Walker config override to skel and existing user homes.
    # Only copies if user has no config yet — never overwrites manual edits.
    install -Dm644 /usr/share/moonarch/walker-config.toml \
        /etc/skel/.config/walker/config.toml
    while IFS=: read -r _ _ uid gid _ home _; do
        if [ "$uid" -ge 1000 ] && [ "$uid" -lt 60000 ] && [ -d "$home" ]; then
            if [ ! -f "$home/.config/walker/config.toml" ]; then
                install -Dm644 -o "$uid" -g "$gid" /usr/share/moonarch/walker-config.toml \
                    "$home/.config/walker/config.toml"
            fi
        fi
    done < /etc/passwd

    # Clean up legacy paru PKGBUILD-repo config. Moonarch now ships binaries
    # exclusively through the Arch registry (pacman repo in /etc/pacman.conf);
    # the [moonarch-pkgbuilds] section and Mode = arp are obsolete.
    PARU_CONF="/etc/paru.conf"
    if [ -f "$PARU_CONF" ]; then
        sed -i '/^Mode[[:space:]]*=[[:space:]]*arp\s*$/d' "$PARU_CONF"
        sed -i '/^\[moonarch-pkgbuilds\]$/,/^$/d' "$PARU_CONF"
    fi

    # Cleanup legacy user-level configs (moved to system-level)
    while IFS=: read -r _ _ uid _ _ home _; do
        if [ "$uid" -ge 1000 ] && [ "$uid" -lt 60000 ] && [ -d "$home" ]; then
            rm -f "$home/.config/paru/paru.conf" 2>/dev/null || true
            rmdir "$home/.config/paru" 2>/dev/null || true
            for svc in cliphist kanshi nautilus walker; do
                rm -f "$home/.config/systemd/user/${svc}.service" 2>/dev/null || true
                rm -f "$home/.config/systemd/user/graphical-session.target.wants/${svc}.service" 2>/dev/null || true
            done
        fi
    done < /etc/passwd

    # Cleanup legacy /usr/local/bin/ scripts from pre-package installs
    rm -f /usr/local/bin/moonarch-* 2>/dev/null || true
    rm -f /usr/local/bin/swww /usr/local/bin/swww-daemon 2>/dev/null || true
    rm -f /usr/local/bin/moonarch-update 2>/dev/null || true

    # Battery conservation mode: create state directory and enable restore service
    install -dm775 -g wheel /var/lib/moonarch
    if [ -f /sys/class/power_supply/BAT0/charge_control_end_threshold ]; then
        systemctl enable moonarch-batsaver.service 2>/dev/null || true
    fi

    echo "==> Moonarch defaults installed."
    echo "==> For first-time setup run: /opt/moonarch/scripts/post-install.sh"
    echo "==> This enables services and configures firewall."
}

pre_upgrade() {
    # Remove untracked walker theme files from pre-package manual deploys.
    # Without this, pacman refuses to overwrite files it doesn't own.
    if [ -d /etc/xdg/walker/themes/moonarch ] && ! pacman -Qo /etc/xdg/walker/themes/moonarch/style.css &>/dev/null; then
        rm -rf /etc/xdg/walker/themes/moonarch
    fi

    # Migrate cliphist.service → cliphist-text + cliphist-image
    if [ -f /etc/systemd/user/cliphist.service ]; then
        while IFS=: read -r _ _ uid _ _ home _; do
            if [ "$uid" -ge 1000 ] && [ "$uid" -lt 60000 ] && [ -d "$home" ]; then
                rm -f "$home/.config/systemd/user/graphical-session.target.wants/cliphist.service" 2>/dev/null || true
            fi
        done < /etc/passwd
        rm -f /etc/systemd/user/graphical-session.target.wants/cliphist.service 2>/dev/null || true
    fi
}

post_upgrade() {
    post_install
}