#!/bin/sh
# run_gir_check.sh - generate bindings with gir2def.py, parse-check every
# generated module, then compile/link/run a small program against a few.
#
# Usage: tools/run_gir_check.sh        (default GIR=Gtk-4.0)
#        GIR=Adw-1 tools/run_gir_check.sh
set -e
CDIR=$(dirname "$0")
ROOT=$(cd "$CDIR/.." && pwd)
GM2="${GM2:-gm2}"
GM2FLAGS="${GM2FLAGS:--fiso}"
GIR="${GIR:-Gtk-4.0}"

GEN="$ROOT/build/gir"
TMP="$ROOT/build/girparse"
mkdir -p "$GEN" "$TMP"

python3 "$ROOT/tools/gir2def.py" "$GIR" -o "$GEN"

# Parse-check: import every generated module from a tiny stub.
fail=0
total=0
for f in "$GEN"/*.def; do
    name=$(basename "$f" .def)
    total=$((total + 1))
    printf 'MODULE parse_%s ; IMPORT %s ; BEGIN END parse_%s.\n' \
        "$name" "$name" "$name" > "$TMP/parse_$name.mod"
    # shellcheck disable=SC2086
    if ! $GM2 $GM2FLAGS -I"$GEN" -c "$TMP/parse_$name.mod" \
             -o "$TMP/parse_$name.o" 2>"$TMP/parse_$name.err"; then
        fail=$((fail + 1))
        echo "PARSE FAIL: $name"
        sed -n '1,4p' "$TMP/parse_$name.err"
    fi
done
echo "gir-check: parsed $total modules from $GIR, $fail failed"

if [ "$GIR" = "Gtk-4.0" ]; then
    # Link-check: reference a generated (namespace) function and enum.
    cat > "$TMP/gircheck.mod" <<'EOF'
MODULE gircheck ;
FROM GtkFunctions IMPORT gtk_get_major_version, gtk_get_minor_version;
FROM GtkButton IMPORT GtkButton;
FROM GtkEnums IMPORT GTK_ALIGN_FILL;
FROM SYSTEM IMPORT ADDRESS;
FROM libc IMPORT printf;
VAR b: GtkButton;
BEGIN
   b := NIL;
   printf("generated: gtk=%d.%d align=%d\n",
          gtk_get_major_version(), gtk_get_minor_version(), GTK_ALIGN_FILL);
   IF (b = NIL) AND (GTK_ALIGN_FILL = 0) THEN
      printf("gircheck: PASS\n"); HALT(0)
   ELSE
      printf("gircheck: FAIL\n"); HALT(1)
   END
END gircheck.
EOF
    # shellcheck disable=SC2086
    $GM2 $GM2FLAGS -I"$GEN" "$TMP/gircheck.mod" -o "$TMP/gircheck" \
         $(pkg-config --cflags --libs gtk4)
    "$TMP/gircheck"
fi

[ "$fail" -eq 0 ]