#!/usr/bin/env bash
# Сверка таблиц pkica.bash-completion с реальным выводом `pkica ... --help`.
# Запуск (из WSL/Linux): bash tests/check_tree.sh [путь к pkica]
# Без аргумента используется pkica из PATH.

root=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
pkica=${1:-$(command -v pkica)}
[[ -x $pkica ]] || { echo "pkica not found: укажите путь аргументом"; exit 1; }

# shellcheck disable=SC1091
source "$root/pkica.bash-completion" || exit 1

fail=0 nodes=0

walk()
{
    local path=$1 help cmds opts expected_cmds expected_opts sub
    help=$("$pkica" ${path#pkica} --help 2>&1)
    nodes=$((nodes + 1))

    cmds=$(awk '/^Commands:/{f=1;next} f&&/^$/{f=0} f&&/^  [a-z]/{print $1}' <<<"$help" |
        tr '\n' ' ' | sed 's/ $//')
    opts=$(awk '/^Options:/{f=1;next} /^(Commands:)?$/{f=0}
        f&&/^  -/{s=$1; gsub(/-\?\|/,"",s); if($2 ~ /^</) s=s "="; printf "%s ", s}' <<<"$help" |
        sed 's/ $//')

    expected_cmds=${_pkica_cmds[$path]-}
    expected_opts=${_pkica_opts[$path]:--h|--help}

    if [[ $cmds != "$expected_cmds" ]]; then
        fail=$((fail + 1))
        printf 'MISMATCH commands [%s]\n  help:       %s\n  completion: %s\n' "$path" "$cmds" "$expected_cmds"
    fi
    if [[ $opts != "$expected_opts" ]]; then
        fail=$((fail + 1))
        printf 'MISMATCH options  [%s]\n  help:       %s\n  completion: %s\n' "$path" "$opts" "$expected_opts"
    fi

    for sub in $cmds; do
        walk "$path $sub"
    done
}

walk pkica

# Узлы в таблицах, которых нет в утилите.
for key in "${!_pkica_cmds[@]}" "${!_pkica_opts[@]}"; do
    "$pkica" ${key#pkica} --help 2>&1 | grep -q "^Usage: $key " || {
        fail=$((fail + 1))
        printf 'UNKNOWN node in completion: [%s]\n' "$key"
    }
done

echo "checked nodes: $nodes, mismatches: $fail"
((fail == 0))