lib_cli.bats

#!/usr/bin/env bats

load ../../tests/test_helper.sh

setup() {
    setup_test_tmpdir
    source "$BASE_BASH_DIR/std/lib_std.sh"
    # shellcheck disable=SC2034 # base_init receives the caller-owned argv array by name.
    declare -a setup_args=()
    base_init setup_args --source "$BASE_BASH_DIR/cli/tests/lib_cli.bats" --
    source "$BASE_BASH_DIR/cli/lib_cli.sh"
}

valid_target() {
    [[ "$1" =~ ^[a-z][a-z0-9-]*$ ]]
}

declare_demo_model() {
    base_cli_model_init demo name=demo version=2.0.0 description="Demo CLI"
    base_cli_command demo admin "Administration" aliases=manage
    base_cli_command demo admin/user "Show a user" aliases=u
    base_cli_option demo admin/user verbose flag --verbose -v help="Verbose output"
    base_cli_option demo admin/user color value --color default=blue enum=blue,green metavar=COLOR help="Output color"
    base_cli_option demo admin/user tag repeatable --tag -t help="A tag"
    base_cli_positional demo admin/user target required=true validator=valid_target help="Target name"
}

@test "lib_cli can be sourced more than once" {
    source "$BASE_BASH_DIR/cli/lib_cli.sh"

    [ "$(type -t base_cli_model_init)" = "function" ]
}

@test "lib_cli fails clearly when sourced without stdlib" {
    bats_run bash -c 'source "$1"; rc=$?; printf "source-rc=%s\n" "$rc"; exit "$rc"' bash "$BASE_BASH_DIR/cli/lib_cli.sh"

    [ "$status" -eq 1 ]
    [[ "$output" == *"lib_cli.sh requires lib_std.sh to be sourced first"* ]]
    [[ "$output" == *"source-rc=1"* ]]
}

@test "declarative model parses nested aliases and preserves result boundaries" {
    declare_demo_model

    base_cli_parse demo -- manage u target-name --color green --tag one --tag "two words" --verbose

    [ "$BASE_BASH_LIBS_CLI_RESULT_COMMAND" = "admin/user" ]
    [ "${BASE_BASH_LIBS_CLI_RESULT_OPTIONS[color]}" = "green" ]
    [ "${BASE_BASH_LIBS_CLI_RESULT_OPTIONS[verbose]}" = "1" ]
    [ "${BASE_BASH_LIBS_CLI_RESULT_REPEATABLE_COUNTS[tag]}" -eq 2 ]
    [ "${BASE_BASH_LIBS_CLI_RESULT_REPEATED[tag\|0]}" = "one" ]
    [ "${BASE_BASH_LIBS_CLI_RESULT_REPEATED[tag\|1]}" = "two words" ]

    local target color count
    base_cli_result_get_positional 0 target
    base_cli_result_get color color
    base_cli_result_count tag count
    [ "$target" = "target-name" ]
    [ "$color" = "green" ]
    [ "$count" -eq 2 ]
}

@test "help is deterministic and includes aliases, defaults, and nested usage" {
    declare_demo_model

    bats_run base_cli_help demo admin/user

    [ "$status" -eq 0 ]
    [[ "$output" == *"Usage: demo admin/user [options] <target>"* ]]
    [[ "$output" == *"--color <COLOR>"* ]]
    [[ "$output" == *"(default: blue)"* ]]
    [[ "$output" == *"--tag, -t"* ]]

    bats_run base_cli_help demo
    [ "$status" -eq 0 ]
    [[ "$output" == *"admin (manage)"* ]]
}

@test "usage errors return status 2 with diagnostics" {
    declare_demo_model

    bats_run base_cli_parse demo -- admin user --color purple target-name
    [ "$status" -eq 2 ]
    [[ "$output" == *"invalid value for option 'color'"* ]]
    [[ "$output" == *"Usage: demo admin/user"* ]]

    bats_run base_cli_parse demo -- admin user target-name --unknown
    [ "$status" -eq 2 ]
    [[ "$output" == *"unknown option '--unknown'"* ]]
}

@test "double dash preserves empty and option-looking positionals" {
    base_cli_model_init dash name=dash
    base_cli_command dash run "Run"
    base_cli_positional dash run first required=true
    base_cli_positional dash run rest repeatable=true

    base_cli_parse dash -- run "" -- --looks-like-option

    [ "${#BASE_BASH_LIBS_CLI_RESULT_POSITIONALS[@]}" -eq 2 ]
    [ "${BASE_BASH_LIBS_CLI_RESULT_POSITIONALS[0]}" = "" ]
    [ "${BASE_BASH_LIBS_CLI_RESULT_POSITIONALS[1]}" = "--looks-like-option" ]
}

@test "run invokes handlers but help and version do not" {
    local handler_calls=0
    demo_handler() {
        handler_calls=$((handler_calls + 1))
    }
    base_cli_model_init runme name=runme version=2.0.0 handler=demo_handler

    base_cli_run runme -- --help
    [ "$handler_calls" -eq 0 ]
    base_cli_run runme -- --version
    [ "$handler_calls" -eq 0 ]
    base_cli_run runme --
    [ "$handler_calls" -eq 1 ]
}

@test "completion emits aliases and a self-contained completion adapter" {
    declare_demo_model

    bats_run base_cli_complete demo -- admin u
    [ "$status" -eq 0 ]
    [[ "$output" == *$'user\n'* || "$output" == user ]]
    [[ "$output" == *$'u'* ]]

    bats_run base_cli_completion_script demo _demo_complete
    [ "$status" -eq 0 ]
    [[ "$output" == *"_demo_complete()"* ]]
    [[ "$output" == *"complete -F _demo_complete demo"* ]]
}

@test "the declarative runtime contains no eval dependency" {
    ! grep -Ev '^[[:space:]]*#' "$BASE_BASH_DIR/cli/lib_cli.sh" | grep -Eq '(^|[[:space:];])eval([[:space:];]|$)'
}