#!/usr/bin/env bash
#
# Build (and optionally test) all module solutions under src/.
#
# Usage:
#   ./scripts/build-all-solutions.sh            # build only
#   ./scripts/build-all-solutions.sh --test      # build + test
#   ./scripts/build-all-solutions.sh --test --configuration Release

set -euo pipefail

REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
SRC_DIR="$REPO_ROOT/src"

RUN_TESTS=false
CONFIGURATION="Debug"
STOP_REPO_HOST_PROCESSES=false

while [[ $# -gt 0 ]]; do
    case "$1" in
        --test|-t)  RUN_TESTS=true; shift ;;
        --stop-repo-host-processes) STOP_REPO_HOST_PROCESSES=true; shift ;;
        --configuration|-c) CONFIGURATION="$2"; shift 2 ;;
        *) echo "Unknown option: $1" >&2; exit 1 ;;
    esac
done

stop_repo_host_processes() {
    local found=0

    while IFS= read -r line; do
        [[ -z "$line" ]] && continue

        local pid="${line%% *}"
        local cmd="${line#* }"

        [[ "$cmd" != *"$REPO_ROOT"* ]] && continue
        [[ "$cmd" != *"StellaOps."* ]] && continue
        [[ "$pid" == "$$" ]] && continue

        if (( found == 0 )); then
            echo "Stopping repo-local Stella host processes before build."
        fi

        echo "  - [$pid] $cmd"
        kill "$pid" 2>/dev/null || true
        sleep 1
        if kill -0 "$pid" 2>/dev/null; then
            kill -9 "$pid" 2>/dev/null || true
        fi
        found=1
    done < <(ps -eo pid=,args=)

    if (( found == 0 )); then
        echo "No repo-local Stella host processes detected."
    else
        echo "Repo-local Stella host processes stopped."
    fi
}

if $STOP_REPO_HOST_PROCESSES; then
    stop_repo_host_processes
fi

# Discover repo-owned solutions only; skip generated output trees.
mapfile -t SOLUTIONS < <(
    find "$SRC_DIR" \
        \( -path '*/node_modules/*' -o -path '*/bin/*' -o -path '*/obj/*' -o -path '*/dist/*' -o -path '*/coverage/*' -o -path '*/output/*' \) -prune -o \
        -name '*.sln' ! -name 'StellaOps.sln' -print | sort
)

if [[ ${#SOLUTIONS[@]} -eq 0 ]]; then
    echo "ERROR: No solution files found under src/." >&2
    exit 1
fi

echo "Found ${#SOLUTIONS[@]} solution(s) to build."
echo ""

build_pass=()
build_fail=()
test_pass=()
test_fail=()

for sln in "${SOLUTIONS[@]}"; do
    rel="${sln#"$REPO_ROOT/"}"
    echo "--- BUILD: $rel ---"

    if dotnet build "$sln" --configuration "$CONFIGURATION" --nologo -v quiet; then
        build_pass+=("$rel")
    else
        build_fail+=("$rel")
        echo "  FAILED"
        continue
    fi

    if $RUN_TESTS; then
        echo "--- TEST:  $rel ---"
        if dotnet test "$sln" --configuration "$CONFIGURATION" --nologo --no-build -v quiet; then
            test_pass+=("$rel")
        else
            test_fail+=("$rel")
            echo "  TEST FAILED"
        fi
    fi
done

echo ""
echo "========== Summary =========="
echo "Build passed : ${#build_pass[@]}"
if [[ ${#build_fail[@]} -gt 0 ]]; then
    echo "Build failed : ${#build_fail[@]}"
    for f in "${build_fail[@]}"; do echo "  - $f"; done
fi
if $RUN_TESTS; then
    echo "Test passed  : ${#test_pass[@]}"
    if [[ ${#test_fail[@]} -gt 0 ]]; then
        echo "Test failed  : ${#test_fail[@]}"
        for f in "${test_fail[@]}"; do echo "  - $f"; done
    fi
fi

if [[ ${#build_fail[@]} -gt 0 ]] || [[ ${#test_fail[@]} -gt 0 ]]; then
    exit 1
fi