# Dependencies: pg-loader, postgres client tools

install-tools-macos:
	brew install pgloader
	brew install libpq

install-tools-linux:
	sudo apt install pgloader
	sudo apt install postgresql-client

run-docker:
	docker run -d --rm --name postgres -e POSTGRES_USER=user -e POSTGRES_PASSWORD=pass -p 6432:6432 postgres:alpine

# Max performance for unit tests.
run-docker-unit-test-only:
	docker run -d --rm --name postgres -e POSTGRES_USER=user -e POSTGRES_PASSWORD=pass \
		--tmpfs /var/lib/postgresql/data:rw,noexec,nosuid,size=2G \
		-p 6432:6432 postgres:alpine \
		-c fsync=off \
		-c synchronous_commit=off \
		-c full_page_writes=off \
		-c wal_level=minimal \
		-c max_wal_senders=0 \
		-c archive_mode=off \
		-c shared_buffers=256MB \
		-c max_wal_size=512MB \
		-c checkpoint_timeout=30min \
		-c logging_collector=off \
		-c log_statement=none \
		-c jit=off \
		-c track_counts=off \
		-c autovacuum=off

dump-db:
# 1. Convert `data.db` to `data.sqlite-dump.sql` and `data.pg-dump.sql`
	sqlite3 data.db .dump > data.sqlite-dump.sql
	-PGPASSWORD=pass dropdb -h 127.0.0.1 -U user pb-data
	PGPASSWORD=pass createdb -h 127.0.0.1 -U user pb-data
	-pgloader --with "preserve index names" sqlite://$$(pwd)/data.db pgsql://user:pass@127.0.0.1/pb-data
	docker exec -it postgres pg_dump -U user -h 127.0.0.1 pb-data > data.pg-dump.sql
# 2. Convert `auxiliary.db` to `auxiliary.sqlite-dump.sql` and `auxiliary.pg-dump.sql`
	sqlite3 auxiliary.db .dump > auxiliary.sqlite-dump.sql
	-PGPASSWORD=pass dropdb -h 127.0.0.1 -U user pb-auxiliary
	PGPASSWORD=pass createdb -h 127.0.0.1 -U user pb-auxiliary
	-pgloader --with "preserve index names" sqlite://$$(pwd)/auxiliary.db pgsql://user:pass@127.0.0.1/pb-auxiliary
	docker exec -it postgres pg_dump -U user -h 127.0.0.1 pb-auxiliary > auxiliary.pg-dump.sql


PREFIX=pb_test_
drop-matching-dbs:
	@echo "Looking for databases starting with $(PREFIX)..."
	@PGPASSWORD=pass psql -h 127.0.0.1 -U user -d postgres -t -c "SELECT datname FROM pg_database WHERE datname LIKE '$(PREFIX)%'" | \
	while read dbname; do \
	  dbname=$$(echo $$dbname | xargs); \
	  if [ ! -z "$$dbname" ]; then \
	    echo "Dropping database: $$dbname"; \
	    PGPASSWORD=pass psql -h 127.0.0.1 -U user -d postgres -c "DROP DATABASE \"$$dbname\""; \
	  fi; \
	done