#!/usr/bin/env bats
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2026 Bryan Joshua Pedini

# CLI parsing and exit codes.

load test_helper

setup() { common_setup; }

@test "--help prints the usage and exits 0" {
	run skup --help
	assert_success
	assert_line 'usage: skeptical-updater [options] [command]'
	assert_line --partial 'refresh           recompute dependency closures for every '"'user'"' root'
	assert_line --partial '--dry-run         print native commands instead of running mutating ones'
	assert_line --partial 'exit status: 0 ok, 1 usage/backend error, 2 aborted'
	[[ -z $(cat "$FAKE_LOG") ]]
}

@test "-h is --help, even after a command" {
	run skup list -h
	assert_success
	assert_line 'usage: skeptical-updater [options] [command]'
}

@test "--version and -V print the version" {
	run skup --version
	assert_success
	assert_output 'skeptical-updater 0.1.0'
	run skup -V
	assert_output 'skeptical-updater 0.1.0'
}

@test "an unknown option is a usage error (exit 1)" {
	run skup --frobnicate
	assert_failure 1
	assert_line 'skeptical-updater: error: unknown option: --frobnicate'
	assert_line "Try 'skeptical-updater --help'."
}

@test "an unknown command is a usage error (exit 1)" {
	run skup upgrade
	assert_failure 1
	assert_line 'skeptical-updater: error: unknown command: upgrade'
}

@test "list, trusted and refresh take no arguments" {
	for c in list trusted refresh; do
		run skup "$c" extra
		assert_failure 1
		assert_output --partial "'$c' takes no arguments"
	done
}

@test "the interactive mode takes no arguments either" {
	run skup '' foo
	assert_failure 1
}

@test "trust and untrust need at least one package" {
	run skup trust
	assert_failure 1
	assert_output --partial "'trust' needs at least one package name"
	run skup untrust
	assert_failure 1
	assert_output --partial "'untrust' needs at least one package name"
}

@test "info and show need exactly one package" {
	run skup info
	assert_failure 1
	assert_output --partial "'info' needs exactly one package name"
	run skup show a b
	assert_failure 1
	assert_output --partial "'show' needs exactly one package name"
}

@test "invalid package names are rejected before anything runs" {
	# shellcheck disable=SC2016 # literal $(id) on purpose
	for bad in '-rf' 'a b' 'foo;rm' '../x' 'x/y' '$(id)'; do
		run skup trust -- "$bad"
		assert_failure 1
		assert_output --partial "invalid package name: '$bad'"
	done
	[[ -z $(cat "$FAKE_LOG") ]]
	[[ ! -e $STATE ]]
}

@test "valid package names with + . : ~ @ _ are accepted" {
	run skup --backend=apt trust 'libstdc++6' 'libc6:i386' 'g++-12' 'a.b~c' 'x_y@z'
	assert_success
	run cut -f2 "$STATE_FILE"
	assert_output "$(printf '%s\n' "$HEADER" a.b~c g++-12 libc6:i386 libstdc++6 x_y@z)"
}

@test "--backend must name a known backend" {
	run skup --backend=portage list
	assert_failure 1
	assert_output --partial "unknown backend 'portage' (expected apt, dnf, pacman or zypper)"
}

@test "--backend and --state-dir without a value are usage errors" {
	run skup list --backend
	assert_failure 1
	assert_output --partial '--backend needs a value'
	run skup list --state-dir
	assert_failure 1
	assert_output --partial '--state-dir needs a value'
	run skup list --state-dir=
	assert_failure 1
	assert_output --partial 'empty state directory'
}

@test "options may follow the command; --backend NAME as two words" {
	run skup list --backend apt --no-refresh
	assert_success
	assert_line --index 0 'Backend: apt (Debian GNU/Linux 12 (bookworm))'
	log_lacks '^apt-get update'
}

@test "--state-dir overrides SKEPTICAL_UPDATER_STATE_DIR" {
	run skup --state-dir="$BATS_TEST_TMPDIR/other" trust su-dummy-c
	assert_success
	[[ -f $BATS_TEST_TMPDIR/other/trusted.tsv ]]
	[[ ! -e $STATE ]]
}

@test "-- ends option parsing" {
	run skup info -- --all
	assert_failure 1
	assert_output --partial "invalid package name: '--all'"
}

@test "no ANSI colours when stdout is not a terminal" {
	run skup list --no-refresh
	assert_success
	refute_output --partial $'\e['
}

@test "--no-color and NO_COLOR are accepted" {
	run skup --no-color list --no-refresh
	assert_success
	NO_COLOR=1 run skup list --no-refresh
	assert_success
	refute_output --partial $'\e['
}