#!/bin/bash
#
# This file is distributed under the MIT License. See LICENSE.md for details.
#

set -euo pipefail
set -x

SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )

OUTPUT="$PWD/MultiStepPipelineOut.txt"
WORKING_DIRECTORY="$PWD/MultiStepPipelineTestDir/"
REFERENCE_OUTPUT="$SCRIPT_DIR/MultiStepPipelineOutput.txt"

function run() {
  "$PWD/libexec/revng/pipeline" \
    -P="$SCRIPT_DIR/MultiStepPipeline.yml" \
    --produce=second-step/strings-3/root:string-kind\
    -i "$SCRIPT_DIR/MultiStepPipelineInput.txt:begin/strings-1" \
    -o "$OUTPUT:second-step/strings-3" \
    --resume "$WORKING_DIRECTORY" \
    "$@"
}

# Cleanup
rm -rf "$WORKING_DIRECTORY"
mkdir -p "$WORKING_DIRECTORY"

# Produce $OUTPUT
run "$@"
diff "$OUTPUT" "$REFERENCE_OUTPUT"

# Produce $OUTPUT again and make sure it has not changed
run "$@"
diff "$OUTPUT" "$REFERENCE_OUTPUT"

# Drop an intermediate results and recompute
rm "$WORKING_DIRECTORY/first-step/strings-2"{,.cache.zst}
run "$@"
diff "$OUTPUT" "$REFERENCE_OUTPUT"

# Recreate the output again
rm "$OUTPUT"
run "$@"
diff "$OUTPUT" "$REFERENCE_OUTPUT"