deploy.sh

#!/usr/bin/env bash
set -euo pipefail

# Deploy script — runs entirely as unprivileged wikirev user.
# Run provision.sh first to set up the server.

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
source "$SCRIPT_DIR/deploy.env"

REMOTE_USER="wikirev"
REVISIONS_DIR="revisions"
RUST_DIR="rust"

ssh_cmd() {
    ssh "$REMOTE_USER@$DROPLET_IP" "$@"
}

echo "=== 1. Building release binaries ==="
cd "$RUST_DIR"
cargo build --release --bin web_server --bin prepare_web_cache
cd ..

echo ""
echo "=== 1b. Preparing web cache data ==="
for dataset_dir in "$REVISIONS_DIR"/*/; do
    dataset=$(basename "$dataset_dir")
    manifest="$dataset_dir/revisions_manifest.json"
    if [ ! -f "$manifest" ]; then
        continue
    fi
    echo "  Preparing $dataset..."
    "$RUST_DIR/target/release/prepare_web_cache" "$dataset_dir" --cache-dir "cache/web/$dataset"
done

echo ""
echo "=== 2. Uploading binary (staged) ==="
scp "$RUST_DIR/target/release/web_server" "$REMOTE_USER@$DROPLET_IP:$REMOTE_DIR/web_server.new"

echo ""
echo "=== 3. Uploading datasets (manifests + web cache) ==="
for dataset_dir in "$REVISIONS_DIR"/*/; do
    dataset=$(basename "$dataset_dir")
    manifest="$dataset_dir/revisions_manifest.json"
    cache_dir="cache/web/$dataset"

    if [ ! -f "$manifest" ]; then
        echo "  Skipping $dataset (no manifest)"
        continue
    fi

    echo "  --- $dataset ---"
    ssh_cmd "mkdir -p $REMOTE_DIR/revisions/$dataset $REMOTE_DIR/cache/web/$dataset"

    # Upload manifest and dataset metadata
    echo "    Uploading manifest..."
    scp "$manifest" "$REMOTE_USER@$DROPLET_IP:$REMOTE_DIR/revisions/$dataset/revisions_manifest.json"
    meta="$dataset_dir/dataset_meta.json"
    if [ -f "$meta" ]; then
        echo "    Uploading dataset_meta.json..."
        scp "$meta" "$REMOTE_USER@$DROPLET_IP:$REMOTE_DIR/revisions/$dataset/dataset_meta.json"
    fi

    # Upload all web cache backends produced by prepare_web_cache
    # (replace remote cache entirely so stale backends are removed)
    echo "    Syncing cache/web/$dataset/..."
    rsync -az --delete --info=progress2 \
        "$cache_dir/" \
        "$REMOTE_USER@$DROPLET_IP:$REMOTE_DIR/cache/web/$dataset/"
done

echo ""
echo "=== 4. Swapping binary and restarting ==="
ssh_cmd "mv $REMOTE_DIR/web_server.new $REMOTE_DIR/web_server; sudo systemctl reset-failed wikirev.service 2>/dev/null; kill \$(pgrep -u wikirev web_server) 2>/dev/null || sudo systemctl start wikirev.service"
echo "Service restarted."

echo ""
echo "=== Done! ==="
echo "Server running at http://$DROPLET_IP"