#!/bin/sh
set -e # Exit on error

# --- 1. CONFIGURATION ---
# We read these from Environment Variables passed by the workflow
# This makes the script reusable for Windows, Linux, etc.
FULL_IMAGE_URL="$REGISTRY/$OWNER/$IMAGE_NAME:$IMAGE_TAG"

echo "------------------------------------------------"
echo "Task Runner: Starting Buildah Orchestration"
echo "Target: $PLATFORM / $TARGET"
echo "Image:  $FULL_IMAGE_URL"
echo "------------------------------------------------"

# --- 2. LOGIN ---
echo "Logging into registry..."
# Note: We use --password-stdin for security so the secret isn't in process list
echo "$PASSWORD" | buildah login -u "$USERNAME" --password-stdin --tls-verify=false --storage-driver=vfs "$REGISTRY"

# --- 3. CREATE CONTAINER ---
echo "Pulling image and creating working container..."
# We capture the Container ID (CTR)
CTR=$(buildah from --tls-verify=false --storage-driver=vfs "$FULL_IMAGE_URL")

# --- 4. CONFIGURE CONTAINER ---
# FIX: buildah run doesn't have --working-dir. 
# We use 'buildah config' to set it on the container instance instead.
buildah config --storage-driver=vfs --workingdir /src "$CTR"

# --- 5. EXECUTE BUILD ---
echo "Running SCons inside container..."

# Explaining the flags:
# -v "$PWD":/src    -> Mounts the host workspace (your code) into the container at /src
# -w /src           -> Sets working directory to /src
# --env ...         -> Passes variables needed strictly for the build (optional)
# scons ...         -> The actual compile command

buildah run \
  --volume "$PWD":/src \
  --storage-driver=vfs \
  "$CTR" \
  scons platform="$PLATFORM" \
        target="$TARGET" \
        d3d12=no \
        arch=x86_64 \
        precision=double \
        production="$PRODUCTION" \
        use_llvm=yes \
        use_mingw=yes \
        -j$(nproc)

# --- 6. CLEANUP ---
echo "Build successful. Removing container..."
buildah rm "$CTR"