#!/usr/bin/env bash
# ==============================================================================
# LaTeX Docker Build Skript (Bash / Linux / macOS / WSL)
# ==============================================================================
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
TARGET_DIR="${1:-""}"

# Wenn kein Pfad übergeben:
# 1. Wenn im aktuellen Verzeichnis *.tex liegt -> nimm das aktuelle Verzeichnis
# 2. Sonst prüfe Standard-Projektordner ../Seminar_Arbeit_BITI_Gruber
if [ -z "$TARGET_DIR" ]; then
    if compgen -G "*.tex" > /dev/null 2>&1; then
        PROJECT_DIR="$(pwd)"
    elif [ -d "${SCRIPT_DIR}/../Seminar_Arbeit_BITI_Gruber" ]; then
        PROJECT_DIR="${SCRIPT_DIR}/../Seminar_Arbeit_BITI_Gruber"
    else
        PROJECT_DIR="$(pwd)"
    fi
else
    PROJECT_DIR="$TARGET_DIR"
fi

IMAGE_NAME="latex-docker:latest"
ACTION="${2:-build}"

if ! command -v docker &> /dev/null; then
    echo "Fehler: Docker ist nicht installiert oder nicht in PATH." >&2
    exit 1
fi

PROJECT_FULL_PATH="$(cd "$PROJECT_DIR" && pwd)"

echo "==> Projektpfad: $PROJECT_FULL_PATH"
echo "==> Aktion: $ACTION"

case "$ACTION" in
    clean)
        docker run --rm -v "${PROJECT_FULL_PATH}:/workspace" -w /workspace "$IMAGE_NAME" clean
        ;;
    watch)
        docker run --rm -it -v "${PROJECT_FULL_PATH}:/workspace" -w /workspace "$IMAGE_NAME" watch
        ;;
    build)
        docker run --rm -v "${PROJECT_FULL_PATH}:/workspace" -w /workspace "$IMAGE_NAME" build
        ;;
    *)
        docker run --rm -v "${PROJECT_FULL_PATH}:/workspace" -w /workspace "$IMAGE_NAME" "$ACTION" "${@:3}"
        ;;
esac

echo "==> Fertig!"