#!/usr/bin/env bash
# Self-contained build + test for src/game/design (plain g++, no CMake needed).
#
#   tests/game_design/build_and_run.sh
#
# Always builds and runs the unit tests (hand-written mini catalog). When
# SOTS_DATA_DIR points at an extracted sots.gob tree AND SOTS_DESIGNS_JSON at
# the owner's stock_designs.json (designs decoded from real saves) it also
# runs the real-data test (every save design must validate, DOpts must equal
# applied_techs, tech gating must show exactly the hidden-rider warnings),
# dumps our findings per design and, if the reference validator is reachable
# (SOTS_DESIGN_RULES_DIR, default ~/sots-re/verify/design-rules), diffs them
# design by design with oracle/compare.py.
#
# Env: CXX (g++), PYTHON (python3), BUILD_DIR (tests/game_design/build),
#      SOTS_DATA_DIR, SOTS_DESIGNS_JSON, SOTS_DESIGN_RULES_DIR.
set -euo pipefail

HERE=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
ROOT=$(cd "$HERE/../.." && pwd)
BUILD=${BUILD_DIR:-$HERE/build}
CXX=${CXX:-g++}
PYTHON=${PYTHON:-python3}
FLAGS=(-std=c++17 -O2 -Wall -Wextra -Wpedantic -Werror -I"$ROOT/src" -I"$HERE")
LIB=(
    "$ROOT/src/mars/parse/blocks.cpp" "$ROOT/src/mars/parse/value.cpp"
    "$ROOT/src/mars/text/value.cpp" "$ROOT/src/mars/text/flat_kv.cpp"
    "$ROOT/src/mars/text/manifest.cpp" "$ROOT/src/mars/text/csv.cpp"
    "$ROOT/src/game/data/common.cpp" "$ROOT/src/game/data/block.cpp"
    "$ROOT/src/game/data/weapon.cpp" "$ROOT/src/game/data/shipsection.cpp"
    "$ROOT/src/game/data/turrets.cpp" "$ROOT/src/game/data/techtree.cpp"
    "$ROOT/src/game/data/strings.cpp" "$ROOT/src/game/data/catalog.cpp"
    "$ROOT/src/game/design/design.cpp" "$ROOT/src/game/design/rules.cpp"
    "$ROOT/src/game/design/stats.cpp" "$ROOT/src/game/design/defaults.cpp"
    "$ROOT/src/game/design/hull.cpp"
)

mkdir -p "$BUILD"

echo "== building unit tests"
"$CXX" "${FLAGS[@]}" "${LIB[@]}" "$HERE/test_main.cpp" "$HERE/mini_catalog.cpp" "$HERE/test_structure.cpp" \
    "$HERE/test_banks.cpp" "$HERE/test_tech.cpp" "$HERE/test_stats.cpp" "$HERE/test_hull.cpp" "$HERE/test_json.cpp" -o "$BUILD/unit_tests"
echo "== running unit tests"
"$BUILD/unit_tests"

if [ -z "${SOTS_DATA_DIR:-}" ] || [ -z "${SOTS_DESIGNS_JSON:-}" ]; then
    echo "== SOTS_DATA_DIR / SOTS_DESIGNS_JSON not set: skipping real-data tests"
    exit 0
fi
if [ ! -d "$SOTS_DATA_DIR" ]; then
    echo "== SOTS_DATA_DIR=$SOTS_DATA_DIR is not a directory" >&2
    exit 1
fi
if [ ! -f "$SOTS_DESIGNS_JSON" ]; then
    echo "== SOTS_DESIGNS_JSON=$SOTS_DESIGNS_JSON is not a file" >&2
    exit 1
fi

echo "== building real-data tools"
"$CXX" "${FLAGS[@]}" "${LIB[@]}" "$HERE/stock_designs.cpp" "$HERE/realdata_test.cpp" -o "$BUILD/realdata_test"
"$CXX" "${FLAGS[@]}" "${LIB[@]}" "$HERE/stock_designs.cpp" "$HERE/dump_designs.cpp" -o "$BUILD/dump_designs"

echo "== real-data: every save design through the rules"
"$BUILD/realdata_test"

echo "== dumping findings"
"$BUILD/dump_designs" "$SOTS_DATA_DIR" "$SOTS_DESIGNS_JSON" "$BUILD/designs.json"

ORACLE=${SOTS_DESIGN_RULES_DIR:-$HOME/sots-re/verify/design-rules}
if [ ! -f "$ORACLE/design_rules.py" ]; then
    echo "== reference validator not found at $ORACLE (set SOTS_DESIGN_RULES_DIR): skipping comparison"
    exit 0
fi
echo "== comparing with the reference validator"
read -ra PY <<< "$PYTHON"   # PYTHON may be a command with arguments ("uv run python3")
exec "${PY[@]}" "$HERE/oracle/compare.py" "$BUILD/designs.json" "$SOTS_DESIGNS_JSON" "$ORACLE"