#!/usr/bin/env bash

# Strict: the copy over / below is the one thing this stage exists to do, and
# without set -e its failure fell through to guarded no-ops and exited 0 --
# a failed stage the installer's summary could never see.
set -euo pipefail

# --- Helper functions ---
log() { echo -e "\033[1;34m[INFO]\033[0m $*"; }
exists() { command -v "$1" >/dev/null 2>&1; }

# --- Defined Paths ---
# The default, not an assignment: an exported PANAMA_PATH from a clone at
# another location must win, or the copy over / below reads the wrong tree.
PANAMA_PATH="${PANAMA_PATH:-$HOME/.local/share/Panama}"

echo -e "\n--- Copying System & User files ---"
log "Changing DNF Settings"
sudo cp -r "$PANAMA_PATH/config/copy/." "/"

# The GPU symlink rules land via the copy above. Apply them without a reboot so
# AQ_DRM_DEVICES resolves on the first Hyprland login rather than the second.
if [[ -f /etc/udev/rules.d/99-panama-gpu.rules ]]; then
  log "Reloading udev rules for stable GPU symlinks"
  sudo udevadm control --reload
  sudo udevadm trigger --subsystem-match=drm
fi

# The document-portal drop-in lands via the same copy. A user unit's drop-ins
# are read at daemon-reload, so without this the guard applies from the next
# login rather than from now -- and the failure it guards against is one you
# only find days later, when you next open a flatpak you had not opened yet.
if [[ -f /etc/systemd/user/xdg-document-portal.service.d/panama-stale-mount.conf ]]; then
  log "Reloading the user manager so the document-portal drop-in applies"
  systemctl --user daemon-reload || log "Could not reload the user manager"
fi

echo -e "\n--- Desktop appearance ---"
# GTK and Qt apps read these directly from gsettings; there is no settings
# daemon outside GNOME, so they must be correct rather than merely overridden.
# These match config/dot/gtk-3.0/settings.ini and quickshell's Theme.qml.
if exists gsettings; then
  log "Applying interface settings"
  gsettings set org.gnome.desktop.interface gtk-theme 'adw-gtk3-dark'
  gsettings set org.gnome.desktop.interface icon-theme 'Adwaita'
  gsettings set org.gnome.desktop.interface color-scheme 'prefer-dark'
  gsettings set org.gnome.desktop.interface font-name 'Adwaita Sans 11'
  gsettings set org.gnome.desktop.interface monospace-font-name 'VictorMono Nerd Font 10'
  gsettings set org.gnome.desktop.interface cursor-theme 'oreo_blue_cursors'
  # Deliberately NOT setting cursor-size. GNOME here is on 16 (smaller than
  # GNOME's own default of 24) and changing it would visibly alter the working
  # GNOME session. Hyprland uses XCURSOR_SIZE=24 from uwsm/env; if the cursor
  # feels too large there, change that one value rather than this one.
fi

echo -e "\n--- Hyprland session services ---"
# Deliberately NOT enabling these.
#
# hyprpaper / hypridle / hyprpolkitagent / vicinae all ship units that are
# WantedBy=graphical-session.target -- and that target is active under GNOME
# too. Enabling them would start hypridle alongside GNOME's own idle handling
# (two daemons blanking and locking the screen on different timers) and start
# hyprpaper where there is no layer shell for it to draw on.
#
# Instead hypr/autostart.lua runs `systemctl --user start ...` on
# hyprland.start, which scopes them to the Hyprland session. They still get the
# correct uwsm activation environment and still stop in order, because they are
# PartOf=graphical-session.target.
log "Hyprland services are started per-session by hypr/autostart.lua, not enabled globally"

# espanso is the exception to the rule above: text expansion is wanted under
# any compositor and conflicts with nothing GNOME runs, and upstream's own
# mechanism is a registered user unit. The RPM ships no unit -- without this,
# the package installs, the config links, and no trigger ever fires.
# `service register` writes and enables the unit and is idempotent on re-runs;
# autostart.lua also starts it so the first Hyprland login after a fresh
# install expands text without waiting for the next one.
if exists espanso && ! systemctl --user cat espanso.service >/dev/null 2>&1; then
  log "Registering the espanso text-expansion service"
  espanso service register >/dev/null 2>&1 || log "Could not register espanso"
fi

# Notification daemons must NOT be installed: mako, dunst and swaync all
# register Name=org.freedesktop.Notifications for D-Bus activation, which races
# Quickshell's own notification server at login. Whoever wins keeps the name.
for pkg in mako dunst SwayNotificationCenter; do
  if rpm -q "$pkg" >/dev/null 2>&1; then
    log "WARNING: $pkg is installed and will fight Quickshell for the notification D-Bus name."
    log "         Fix with: systemctl --user mask ${pkg,,}.service"
  fi
done

# Select the launcher theme once vicinae exists.
if exists vicinae; then
  log "Setting vicinae theme"
  vicinae theme set tokyonight-moon >/dev/null 2>&1 || true
fi
