#!/bin/bash
#shellcheck disable=SC1090,SC2164

. "$(sfpath)" || exit 3

shellfu import pretty

usage() {
    mkusage "$@" "[options] PATH" \
        -- \
            "Discover all JATS tests under directory PATH."                  \
        -o                                                                   \
            "-f FMT     Print test name in format FMT. 'jats' or 'path'."
}

discover() {
    #
    # Find tests under dirs ${FindDirs[@]}
    #
    local s_dir  # suite root dir
    local t_cand     # possible test path
    local t_apath    # absolute path to test directory
    local t_rpath    # relative path to test directory within $s_dir
    local s_id   # suite's jats: id
    find "${FindDirs[@]}" -name test \
      | while read -r t_cand; do
            s_dir=$(straverse "$t_cand") || continue
            t_apath=$(dirname "$(readlink -f "$t_cand")")
            t_rpath=${t_apath#$s_dir/}
            s_id=$(jattool sfind -f jats "$s_dir")
            debug -v s_dir s_id t_apath t_rpath
            case $Fmt in
                path) echo "$s_dir/$t_rpath" ;;
                jats) echo "$s_id/$t_rpath" ;;
            esac
        done
}

straverse() {
    #
    # Traverse back from test dir $1 and print its suite dir
    #
    local tdir=$1
    local dir
    dir=$(readlink -f "$tdir")
    while true; do
        test -d "$dir/.jats" && echo "$dir" && return 0
        test "$dir" == "/" && return 1
        dir=${dir%/*}; test -n "$dir" || dir=/
    done
}

main() {
    local FindDirs=()
    local Fmt=path
    while true; do case $1 in
        -f) Fmt=$2; shift 2 || usage -w "missing FMT" ;;
        -*) usage -w "unknown argument: $1" ;;
        *)  break ;;
    esac done
    FindDirs=("$@")
    case $Fmt in
        jats|path) : ;;
        *) usage -w "unknown FMT: $Fmt" ;;
    esac
    debug -v FindDirs Fmt
    discover | grep .
}

main "$@"