#! /bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) by the Spot authors, see the AUTHORS file for details.
#
# This file is part of Spot, a model checking library.
#
# Spot is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Spot is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

. ./defs || exit 1

set -e

checkopt_noparse()
{
    cat >exp
    run 0 ltlgrind --sort "$@" > out
    diff exp out
}

checkopt()
{
    checkopt_noparse "$@"
    # The result must be parsable
    ltlfilt out
}

checkopt -f 'Xp1 U (p4 | (p3 xor (p4 W p0)))' <<EOF
1
Xp1
Xp1 U p4
Xp1 U (p3 | p4)
p4 | (p3 xor (p4 W p0))
Xp1 U (!p3 | p4)
Xp1 U (p3 xor (p4 W p0))
Xp1 U (p4 | (p4 W p0))
Xp1 U (p4 | (p3 xor p4))
Xp1 U (p4 | (p0 xor p3))
Xp1 U (p0 | (p0 xor p3))
p1 U (p4 | (p3 xor (p4 W p0)))
1 U (p4 | (p3 xor (p4 W p0)))
Xp1 U (p4 | !(p4 W p0))
Xp1 W (p4 | (p3 xor (p4 W p0)))
X(0) U (p4 | (p3 xor (p4 W p0)))
Xp1 U (p4 | (p3 xor (p4 W 0)))
Xp4 U (p4 | (p3 xor (p4 W p0)))
Xp3 U (p4 | (p3 xor (p4 W p0)))
Xp0 U (p4 | (p3 xor (p4 W p0)))
Xp1 U (p1 | (p3 xor (p1 W p0)))
Xp1 U (p3 | (p3 xor (p3 W p0)))
Xp1 U (p4 | (p1 xor (p4 W p0)))
Xp1 U (p4 | (p4 xor (p4 W p0)))
Xp1 U (p4 | (p0 xor (p4 W p0)))
Xp1 U (p4 | (p3 xor (p4 W p1)))
Xp1 U (p4 | (p3 xor (p4 W p3)))
Xp1 U (p4 | (p3 & !(p4 W p0)))
Xp1 U (p4 | (!p3 & (p4 W p0)))
EOF

checkopt -f '(Xp4 R p3) W !p0' <<EOF
1
!p0
Xp4 R p3
p3 W !p0
Xp4 W !p0
(p4 R p3) W !p0
(Xp4 R p3) W p0
(Xp4 R p3) W 0
(p3 W Xp4) W !p0
(X(0) R p3) W !p0
(Xp3 R p3) W !p0
(Xp0 R p3) W !p0
(Xp4 R p4) W !p0
(Xp4 R p0) W !p0
(Xp4 R p3) W !p4
(Xp4 R p3) W !p3
EOF

checkopt -f 'F(!p2 & p3) | Fp0' -n 4 <<EOF
Fp0
F(!p2 & p3)
Fp0 | Fp3
(!p2 & p3) | Fp0
EOF

checkopt -f '{(a | b)[*4] & ((a | b)*; c)} <>-> G(d <-> e) xor f' --split-ops \
<<EOF
{{a | b}[*4] & {{a | b}[*];c}}<>-> (f xor G(d -> e))
{{a | b}[*4] & {{a | b}[*];c}}<>-> (f xor G(e -> d))
{{a | b}[*4] & {{a | b}[*];c}}<>-> (f xor G(d & e))
{{a | b}[*4] & {{a | b}[*];c}}<>-> (f & !G(d <-> e))
{{a | b}[*4] & {{a | b}[*];c}}<>-> (!f & G(d <-> e))
{{a | b}[*4] & {{a | b}[*];c}}<>-> (f xor G(!d & !e))
{{{a | b}[*];c} && {{a | b}[*4];[*]}}<>-> (f xor G(d <-> e))
{{a | b}[*4] && {{a | b}[*];c;[*]}}<>-> (f xor G(d <-> e))
EOF


checkopt -f '!(!XXp1 M X(p4 U p2))' --rewrite-ops <<EOF
!(!XXp1 R X(p4 U p2))
!(X(p4 U p2) U !XXp1)
!(!XXp1 M X(p4 W p2))
EOF

checkopt -f '!(p0 & !p2 & (p1 W 0))' --remove-multop-operands <<EOF
!(p0 & !p2)
!(p0 & (p1 W 0))
!(!p2 & (p1 W 0))
EOF

checkopt -f '{p1[*..2] | p2[*3..5] | p3[*6..]}[]-> 0' --simplify-bounds <<EOF
{p2[*3..5] | p3[*6..] | p1[*0..1]}[]-> 0
{p2[*3..5] | p3[*6..] | p1[*]}[]-> 0
{p1[*0..2] | p3[*6..] | p2[*2..5]}[]-> 0
{p1[*0..2] | p3[*6..] | p2[*0..5]}[]-> 0
{p1[*0..2] | p3[*6..] | p2[*3..4]}[]-> 0
{p1[*0..2] | p3[*6..] | p2[*3..]}[]-> 0
{p1[*0..2] | p2[*3..5] | p3[*5..]}[]-> 0
{p1[*0..2] | p2[*3..5] | p3[*]}[]-> 0
EOF

checkopt -f '!F(!X(Xp1 R p2) -> p4)' --remove-one-ap <<EOF
!F(!X(Xp2 R p2) -> p4)
!F(!X(Xp4 R p2) -> p4)
!F(!X(Xp1 R p1) -> p4)
!F(!X(Xp1 R p4) -> p4)
!F(!X(Xp1 R p2) -> p1)
!F(!X(Xp1 R p2) -> p2)
EOF

checkopt -f '!p4 & (p2 | {{!p1}[*]})' --ap-to-const <<EOF
0
!p4
p2 & !p4
p2 | {{!p1}[*]}
!p4 & {{!p1}[*]}
!p4 & (p2 | {[*]})
EOF


checkopt -f 'F(XXp0 | (p4 & Gp0))' --remove-ops <<EOF
XXp0 | (p4 & Gp0)
F(Xp0 | (p4 & Gp0))
F((p0 & p4) | XXp0)
EOF

checkopt -f '1 U (p3 <-> p4)' -m 2 <<EOF
0
1
p3
p4
!p4
!p3
p3 -> p4
p4 -> p3
p3 & p4
1 U p3
1 U p4
1 U !p3
1 U !p4
!p3 & !p4
1 U (p3 & !p4)
1 U (!p3 & p4)
EOF

checkopt -f 'F({{p2;p0}[:*]}[]-> Xp0)' <<EOF
1
FXp0
F!{{p2;p0}[:*]}
{{p2;p0}[:*]}[]-> Xp0
F({p2;p0}[]-> Xp0)
F({{p2;p0}[:*]}[]-> p0)
F({p0[*2][:*]}[]-> Xp0)
F({p2[*2][:*]}[]-> Xp2)
F({{1;p0}[:*]}[]-> Xp0)
F({{p2;1}[:*]}[]-> Xp0)
F({{p2;p0}[:*]}[]-> X(0))
EOF

echo '1,a,3' > input
checkopt_noparse input/2 <<EOF
1,0,3
1,1,3
EOF

checkopt_noparse -F input/2 --format '%<,%f,%>,%F,%L' <<EOF
1,0,3,input,1
1,1,3,input,1
EOF

ltlgrind -f 'a U b' -m 999999999999999999999999999 2>err && exit 1
grep 'too large' err

# The following message appears only if run from a tty.
if (: > /dev/tty) >/dev/null 2>&1 ; then
   ltlgrind </dev/tty 2>err && exit 1
   grep 'No formula to mutate' err
fi

: