#!/usr/bin/env bash
# run-map-editor.sh — launcher for sporel-module-map-editor
# Usage: bash scripts/run-map-editor.sh [target_map.json]
#
# If a target is given, copy it into the editor's work-slot before
# launching, then copy the edited result back to the target after exit.
# Without a target, edits the in-place work.map.json.

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
EDITOR_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
WORK_SLOT="$EDITOR_DIR/maps/work.map.json"
SPOREL_ROOT="$(cd "$EDITOR_DIR/../.." && pwd)"
SPOREL_BIN="${SPOREL_BIN:-$SPOREL_ROOT/sporel-engine/build/Sporel.exe}"

if [ ! -x "$SPOREL_BIN" ]; then
    echo "error: Sporel binary not found at $SPOREL_BIN" >&2
    echo "set SPOREL_BIN env-var or build the engine first" >&2
    exit 1
fi

TARGET="${1:-}"
if [ -n "$TARGET" ]; then
    if [ ! -f "$TARGET" ]; then
        echo "error: target map not found: $TARGET" >&2
        exit 1
    fi
    echo "copying $TARGET -> $WORK_SLOT"
    cp "$TARGET" "$WORK_SLOT"
fi

echo "launching map-editor on $WORK_SLOT"

export SPOREL_LIBS_DIR="$SPOREL_ROOT/sporel-libs"
export SPOREL_MODULES_DIR="$SPOREL_ROOT/sporel-modules"
export SPOREL_MODULE=map-editor

LOG_FILE="${SPOREL_LOG:-/tmp/sporel-last-run.log}"
set +e
"$SPOREL_BIN" "$@" 2> >(tee "$LOG_FILE" >&2)
rc=$?
set -e

if [ -n "$TARGET" ] && [ $rc -eq 0 ]; then
    echo "copying $WORK_SLOT -> $TARGET"
    cp "$WORK_SLOT" "$TARGET"
fi

echo "done (exit $rc)"
exit $rc