#!/bin/bash
# The whole thing, from nothing, the way a classroom would get it: a fresh
# machine, the built .deb, and the session started from what it installed.
# No developer install script anywhere in the path.
set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
LAB="$ROOT/tools/lab/lab"
DEB="${1:-$(ls -t "$ROOT"/dist/ekklesia-classroom_*_amd64.deb | head -1)}"
NAME="${LAB_NAME:-classroom-v2-lab}"

echo "installing $(basename "$DEB")"
"$LAB" up >/dev/null

docker exec "$NAME" sh -c '
    printf "#!/bin/sh\nexit 101\n" > /usr/sbin/policy-rc.d
    chmod +x /usr/sbin/policy-rc.d
    apt-get update -qq >/dev/null 2>&1'

docker exec "$NAME" sh -c "
    DEBIAN_FRONTEND=noninteractive dpkg -i '/srv/classroom/${DEB#$ROOT/}' \
        >/dev/null 2>&1 || true
    DEBIAN_FRONTEND=noninteractive apt-get -y -qq -f install >/dev/null 2>&1
    DEBIAN_FRONTEND=noninteractive dpkg --configure ekklesia-classroom >/dev/null 2>&1
    rm -f /usr/sbin/policy-rc.d"

state=$(docker exec "$NAME" dpkg-query -W -f='${db:Status-Abbrev}' ekklesia-classroom)
echo "package state: $state"

# environment.d is read when the user manager starts, so it starts after.
docker exec "$NAME" systemctl restart user@1000.service
sleep 4

"$LAB" session >/dev/null
sleep 8

check() { printf '  %-46s %s\n' "$1" "$2"; }
env_dirs=$(docker exec -u classroom -e XDG_RUNTIME_DIR=/run/user/1000 \
    -e DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus "$NAME" \
    systemctl --user show-environment 2>/dev/null | grep '^XDG_CONFIG_DIRS=' || true)

check "package installed" "$state"
check "session config path" "${env_dirs:-NOT SET}"
check "plasmashell" "$(docker exec "$NAME" pgrep -c -x plasmashell || echo 0)"
check "kwin" "$(docker exec "$NAME" pgrep -c -x kwin_wayland || echo 0)"
check "panel applets" "$(docker exec "$NAME" sh -c 'grep -c "^plugin=" /home/classroom/.config/plasma-org.kde.plasma.desktop-appletsrc' || echo 0)"
check "panel restart policy" "$(docker exec -u classroom -e XDG_RUNTIME_DIR=/run/user/1000 \
    -e DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus "$NAME" \
    systemctl --user show plasma-plasmashell.service -p Restart --value)"
check "audio policy" "$(docker exec -u classroom -e XDG_RUNTIME_DIR=/run/user/1000 \
    -e DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus "$NAME" \
    systemctl --user is-active ekklesia-classroom-audio.service || true)"