#!/bin/bash
#shellcheck disable=SC1091,SC2034

Installed=
Custom=
Select=

shellfu import jat_dump
shellfu import preupg
shellfu import preupg_fupath
shellfu import xcase

xcase__enum() {
    #
    # Enumerate use case ids
    #
    xcase__permute Installed 0 1 2 \
      | xcase__per Custom 0 1 2 \
      | xcase__per Select none s_ok c_ok s_bad c_bad both
}

mk_cupath() {
    #
    # Build custom upath
    #
    local name
    for name in "$@"; do
        preupg_fupath "$name" @pass @informational @fixed
    done
}

xcase__setup() {
    #
    # Setup and collect data
    #
    local t_selargs      # selection arguments

    case $Installed in
        0)  :   ;;
        1)  mk_cupath INS1;     cp -r INS1 /usr/share/preupgrade ;;
        2)  mk_cupath INS{1,2}; cp -r INS{1,2} /usr/share/preupgrade ;;
        *)  xcase__id_error Installed ;;
    esac

    case $Custom in
        0)  :   ;;
        1)  mk_cupath CUS1     ;;
        2)  mk_cupath CUS{1,2} ;;
        *)  xcase__id_error Custom ;;
    esac

    case $Select in
        none)   t_selargs=() ;;
        s_ok)   t_selargs=(-s INS1) ;;
        s_bad)  t_selargs=(-s BLAH) ;;
        c_ok)   t_selargs=(-c CUS1/all-xccdf.xml) ;;
        c_bad)  t_selargs=(-c CUS3/all-xccdf.xml) ;;
        both)   t_selargs=(-s INS1 -c CUS1/all-xccdf.xml) ;;
        *) xcase__id_error Select ;;
    esac

    jat__cmd -S 0,1,20,22 -o preupg.out -e preupg.err \
        preupg --list-rules "${t_selargs[@]}"
        echo $? >r_es
}

xcase__test() {
    #
    # Verify result = oracle
    #
    local o_err=false       # oracle: error output?
    local o_es              # oracle: preupg exit status
    local o_lines           # oracle: normal output line count
    local r_err=false       # result: error output?
    local r_es              # result: preupg exit status
    local r_lines           # result: normal output line count
    grep '^xccdf' preupg.out >preupg.out.filtered;  # FIXME: remove and use normal .out
    r_lines=$(<preupg.out.filtered wc -l)           # after https://github.com/upgrades-migrations/preupgrade-assistant/issues/333
    test -s preupg.err && r_err=true
    r_es=$(<r_es)

    case $Installed:$Custom:$Select in

        *:both)     o_lines=0;  o_es=22; o_err=true  ;;

        0:0:*)      o_lines=0;  o_es=20; o_err=true  ;;
        1:*:none)   o_lines=3;  o_es=0;  o_err=false ;;
        *:none)     o_lines=0;  o_es=20; o_err=true  ;;

        0:*:s_ok)   o_lines=0;  o_es=20; o_err=true  ;;
        *:s_ok)     o_lines=3;  o_es=0;  o_err=false ;;
        *:s_bad)    o_lines=0;  o_es=20; o_err=true  ;;

        *:0:c_ok)   o_lines=0;  o_es=20; o_err=true  ;;
        *:c_ok)     o_lines=3;  o_es=0;  o_err=false ;;
        *:c_bad)    o_lines=0;  o_es=20; o_err=true  ;;

        *)  xcase__id_error Installed Custom Select ;;
    esac

    jat__cmp -h "number of listed lines is correct" \
        "$r_lines" eq "$o_lines"
    jat__cmp -h "exit status from preupg is correct" \
        "$r_es" eq "$o_es"
#   jat__cmp -h "error output does (not) exist as expected" \
#       "$r_err" eq "$o_err"
    # FIXME: enable stderr assert after https://github.com/upgrades-migrations/preupgrade-assistant/issues/333
}

xcase__diag() {
    dump__file preupg.out preupg.out.filtered preupg.err
}

xcase__cleanup() {
    jat__cmd rm -rf /usr/share/preupgrade/INS*
    preupg__rmresult
}

xcase__run -v
preupg__Cleanup