#!/bin/bash
# Copies Storage objects (binary files) from the OLD managed Supabase project's Storage
# API to the new self-hosted Storage API, preserving bucket names, object paths and
# content-type. Bucket definitions + storage.objects METADATA rows are already restored
# by 02-restore-new.sh (they live in the `storage` schema, covered by schema.sql/data.sql)
# — this script only moves the actual binary blobs, which live outside Postgres.
set -euo pipefail

: "${OLD_SUPABASE_URL:?e.g. https://cksuehzcimitsxmeloes.supabase.co}"
: "${OLD_SERVICE_ROLE_KEY:?Old project's service_role key (Dashboard -> Project Settings -> API)}"
: "${NEW_SUPABASE_URL:?e.g. https://api.caterium.ru}"
: "${NEW_SERVICE_ROLE_KEY:?New stack's SERVICE_ROLE_KEY from .env}"

TMP_DIR="$(mktemp -d)"
trap 'rm -rf "$TMP_DIR"' EXIT

echo "== Listing buckets on OLD project =="
BUCKETS=$(curl -sf "$OLD_SUPABASE_URL/storage/v1/bucket" \
  -H "Authorization: Bearer $OLD_SERVICE_ROLE_KEY" \
  -H "apikey: $OLD_SERVICE_ROLE_KEY" | jq -r '.[].id')

for bucket in $BUCKETS; do
  echo "== Bucket: $bucket =="
  OBJECTS=$(curl -sf -X POST "$OLD_SUPABASE_URL/storage/v1/object/list/$bucket" \
    -H "Authorization: Bearer $OLD_SERVICE_ROLE_KEY" \
    -H "apikey: $OLD_SERVICE_ROLE_KEY" \
    -H "Content-Type: application/json" \
    -d '{"limit": 1000, "offset": 0, "prefix": ""}' | jq -r '.[] | select(.id != null) | .name')

  count=0
  while IFS= read -r path; do
    [ -z "$path" ] && continue
    local_file="$TMP_DIR/$(basename "$path")"
    curl -sf "$OLD_SUPABASE_URL/storage/v1/object/$bucket/$path" \
      -H "Authorization: Bearer $OLD_SERVICE_ROLE_KEY" \
      -H "apikey: $OLD_SERVICE_ROLE_KEY" \
      -o "$local_file"

    curl -sf -X POST "$NEW_SUPABASE_URL/storage/v1/object/$bucket/$path" \
      -H "Authorization: Bearer $NEW_SERVICE_ROLE_KEY" \
      -H "apikey: $NEW_SERVICE_ROLE_KEY" \
      -H "x-upsert: true" \
      --data-binary "@$local_file" > /dev/null

    rm -f "$local_file"
    count=$((count + 1))
    echo "  copied: $bucket/$path"
  done <<< "$OBJECTS"
  echo "  -> $count object(s) copied for bucket $bucket"
done

echo ""
echo "Done. Spot-check: open a known photo URL under $NEW_SUPABASE_URL/storage/v1/object/public/<bucket>/<path>"
echo "and confirm it renders identically to the old one."