#!/usr/bin/env bats

load test_helper

# version runs from a fake checkout with fake git, uname, pacman and
# checkupdates. The running kernel's modules never exist here, so the kernel
# line always also says a newer one is installed. Sibling projects are real git
# repositories: only git commands on the fake checkout are faked.

setup() {
  common_setup
  CD="$HOME/.local/share/coredesktop"
  mkdir -p "$CD"
  cp "$REPO/version" "$REPO/utils.sh" "$REPO/sibling" "$CD/"

  export CD REAL_GIT
  REAL_GIT="$(command -v git)"
  stub git '[ "$2" = "$CD" ] || exec "$REAL_GIT" "$@"
  case "$3" in
    rev-parse) exit 0 ;;
    log) echo "2026.10.31 (6bc4fdc)" ;;
    fetch) exit 1 ;;
  esac'
  stub uname 'echo "${KERNEL:-9.9.1-arch1-1}"'
  # pacman -Q <package>: the versions in $INSTALLED, "name version" per line
  stub pacman 'grep "^$2 " <<< "$INSTALLED" || exit 1'
  stub checkupdates 'printf "%s" "$PENDING"; [ -n "$PENDING" ] || exit 2'
  export INSTALLED="mesa 1:26.2.6-1" PENDING=""
  # The mirror synced $SYNCED_HOURS ago (an hour by default)
  export MIRRORLIST="$BATS_TEST_TMPDIR/mirrorlist" SYNCED_HOURS=1
  echo 'Server = https://mirror.example/archlinux/$repo/os/$arch' > "$MIRRORLIST"
  stub curl 'echo "$(( $(date +%s) - SYNCED_HOURS * 3600 ))"'
}

@test "version shows the kernel and Mesa, with nothing newer to install" {
  run bash "$CD/version"
  [ "$status" -eq 0 ]
  [[ "$output" == *"CoreDesktop  2026.10.31 (6bc4fdc)"* ]]
  [[ "$output" == *"Kernel       9.9.1-arch1-1 (newer kernel installed, reboot to use it)"$'\n'* ]]
  [[ "$output" == *"Video driver Mesa 26.2.6"$'\n'* ]]
  [[ "$output" != *"is available"* ]]
  [[ "$output" != *"mirror"* ]]
}

@test "version suggests update for a newer kernel and video driver" {
  export PENDING=$'linux 9.9.1.arch1-1 -> 9.9.2.arch1-1\nmesa 1:26.2.6-1 -> 1:26.3.0-1\n'
  run bash "$CD/version"
  [ "$status" -eq 0 ]
  [[ "$output" == *"Kernel       9.9.1-arch1-1"*", 9.9.2 is available (run update)"* ]]
  [[ "$output" == *"Video driver Mesa 26.2.6, 26.3.0 is available (run update)"* ]]
}

@test "version shows NVIDIA's driver over Mesa, and ignores a rebuild of the same version" {
  export INSTALLED=$'mesa 1:26.2.6-1\nnvidia-utils 615.78.08-1'
  export PENDING=$'nvidia-utils 615.78.08-1 -> 615.78.08-2\n'
  run bash "$CD/version"
  [ "$status" -eq 0 ]
  [[ "$output" == *"Video driver NVIDIA 615.78.08"$'\n'* ]]
  [[ "$output" != *"is available"* ]]
}

@test "version checks the kernel package that's running, e.g. linux-lts" {
  export KERNEL=6.12.50-1-lts
  export PENDING=$'linux 9.9.1.arch1-1 -> 9.9.2.arch1-1\nlinux-lts 6.12.50-1 -> 6.12.51-1\n'
  run bash "$CD/version"
  [ "$status" -eq 0 ]
  [[ "$output" == *"6.12.51 is available"* ]]
  [[ "$output" != *"9.9.2"* ]]
}

@test "version leaves out what's available when it can't check" {
  rm "$STUB_BIN/checkupdates"
  stub checkupdates 'exit 1'
  export PENDING=$'linux 9.9.1.arch1-1 -> 9.9.2.arch1-1\n'
  run bash "$CD/version"
  [ "$status" -eq 0 ]
  [[ "$output" == *"Kernel       9.9.1-arch1-1"* ]]
  [[ "$output" != *"is available"* ]]
}

@test "version warns when the package mirror is behind Arch" {
  export SYNCED_HOURS=73
  run bash "$CD/version"
  [ "$status" -eq 0 ]
  [[ "$output" == *"Your package mirror (https://mirror.example/archlinux) last synced with Arch 3 days ago"* ]]
  [[ "$output" == *"Run update"* ]]
}

@test "version doesn't warn about a mirror it can't reach" {
  rm "$STUB_BIN/curl"
  stub curl 'exit 7'
  run bash "$CD/version"
  [ "$status" -eq 0 ]
  [[ "$output" != *"mirror"* ]]
}

# sibling_repo NAME: a sibling at v1.0.0 whose origin has a newer v1.1.0
sibling_repo() {
  export GIT_AUTHOR_NAME=Test GIT_AUTHOR_EMAIL=test@example.com
  export GIT_COMMITTER_NAME=Test GIT_COMMITTER_EMAIL=test@example.com
  local origin="$BATS_TEST_TMPDIR/origins/$1"
  git init -q -b main "$origin"
  echo 'echo "$PWD" >> "$HOME/updated"' > "$origin/update.sh"
  git -C "$origin" add -A
  git -C "$origin" commit -qm first
  git -C "$origin" tag v1.0.0
  git clone -q "$origin" "$HOME/.local/share/siblings/$1"
  git -C "$origin" commit -q --allow-empty -m second
  git -C "$origin" tag v1.1.0
}

@test "version leaves out sibling projects when none are installed" {
  run bash "$CD/version"
  [ "$status" -eq 0 ]
  [[ "$output" != *"Sibling"* ]]
}

@test "version lists sibling projects, and doesn't ask to update without a terminal" {
  sibling_repo tools
  run bash "$CD/version" < /dev/null
  [ "$status" -eq 0 ]
  [[ "$output" == *"Sibling projects"$'\n'"  tools  v1.0.0, v1.1.0 is available"* ]]
  [[ "$output" != *"Update tools"* ]]
  [ ! -f "$HOME/updated" ]
}

@test "version updates the sibling projects the user says yes to" {
  sibling_repo keep
  sibling_repo tools
  run script -qec "bash '$CD/version'" /dev/null <<< $'n\ny'
  [ "$status" -eq 0 ]
  [[ "$output" == *"Update keep to v1.1.0? [y/N]"* ]]
  [[ "$output" == *"tools is at v1.1.0."* ]]
  [ "$(cat "$HOME/updated")" = "$HOME/.local/share/siblings/tools" ]
}