#!/bin/sh
set -eu

OLD_CONTAINER=kosync
SQLITE=./data/kosync.sqlite3
IMAGE=sodium/kosync-rs:v2.1.1
REDIS_URL=redis://127.0.0.1:6379/1
PULL=1
FLUSH_TARGET=0

usage() {
    echo "Usage: $0 [--old-container NAME] [--sqlite PATH] [--image IMAGE] [--redis-url URL] [--flush-target] [--no-pull]" >&2
}

while [ "$#" -gt 0 ]; do
    case "$1" in
        --old-container)
            OLD_CONTAINER=$2
            shift 2
            ;;
        --sqlite)
            SQLITE=$2
            shift 2
            ;;
        --image)
            IMAGE=$2
            shift 2
            ;;
        --redis-url)
            REDIS_URL=$2
            shift 2
            ;;
        --flush-target)
            FLUSH_TARGET=1
            shift
            ;;
        --no-pull)
            PULL=0
            shift
            ;;
        -h|--help)
            usage
            exit 0
            ;;
        *)
            usage
            exit 2
            ;;
    esac
done

case "$SQLITE" in
    /*) SQLITE_ABS=$SQLITE ;;
    *) SQLITE_ABS=$(pwd)/$SQLITE ;;
esac

SQLITE_DIR=$(dirname "$SQLITE_ABS")
SQLITE_BASE=$(basename "$SQLITE_ABS")

if [ "$PULL" -eq 1 ]; then
    docker pull "$IMAGE"
fi

echo "image: $IMAGE"
echo "old container: $OLD_CONTAINER"
echo "redis url: $REDIS_URL"
echo "sqlite: $SQLITE_ABS"

set -- export-redis --redis-url "$REDIS_URL" --db "/data/$SQLITE_BASE"
if [ "$FLUSH_TARGET" -eq 1 ]; then
    set -- "$@" --flush-target
fi

docker run --rm \
    --network "container:$OLD_CONTAINER" \
    -v "$SQLITE_DIR:/data" \
    "$IMAGE" \
    "$@"