#!/usr/bin/env bash

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/common.sh"

main() {
  local stable_meta git_meta now stable_alias git_alias

  ensure_repo_layout
  "$SCRIPT_DIR/package.sh" all

  stable_meta="$(metadata_file_for_variant stable)"
  git_meta="$(metadata_file_for_variant dxvk-git)"
  [[ -f "$stable_meta" && -f "$git_meta" ]] || die "build metadata missing; run ./scripts/build.sh all first"

  source "$stable_meta"
  local stable_tool_name="$TOOL_NAME"
  local stable_dxvk="$DXVK_DESCRIBE"
  local stable_commit="$DXVK_COMMIT"
  local stable_archive="$ARCHIVE_NAME"
  stable_alias="$ARCHIVE_ALIAS"

  source "$git_meta"
  local git_tool_name="$TOOL_NAME"
  local git_dxvk="$DXVK_DESCRIBE"
  local git_commit="$DXVK_COMMIT"
  local git_archive="$ARCHIVE_NAME"
  git_alias="$ARCHIVE_ALIAS"

  say "Generate checksums"
  (
    cd "$DIST_DIR"
    sha256sum \
      "$stable_archive" \
      "$git_archive" \
      "$stable_alias" \
      "$git_alias" > SHA256SUMS.txt
    awk '{print $1 "  " $2}' SHA256SUMS.txt | while read -r sum file; do
      printf "%s  %s\n" "$sum" "$file" > "${file}.sha256"
    done
  )

  now="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
  cat > "$DIST_DIR/release-notes.md" <<EOF
# $(release_title)

Build timestamp: \`${now}\`

## Variants

- \`${stable_tool_name}\`
  - Proton base: \`${PROTON_TAG}\`
  - Wine series: \`${WINE_SERIES}\`
  - DXVK: \`${stable_dxvk}\`
  - DXVK commit: \`${stable_commit}\`
  - Archive: \`${stable_archive}\`

- \`${git_tool_name}\`
  - Proton base: \`${PROTON_TAG}\`
  - Wine series: \`${WINE_SERIES}\`
  - DXVK: \`${git_dxvk}\`
  - DXVK commit: \`${git_commit}\`
  - Archive: \`${git_archive}\`
  - Alias: \`${git_alias}\`

## Checksums

See \`SHA256SUMS.txt\` and the matching \`.sha256\` files in this release.

## Recommended Elsword launch options

### Safe / GameGuard Test

\`\`\`bash
${SAFE_LAUNCH_OPTIONS}
\`\`\`

### Performance / Low-Latency Test

\`\`\`bash
${PERF_LAUNCH_OPTIONS}
\`\`\`
EOF
}

main "$@"