DB_NAME='census2000'
DB_USER='postgres'
TIGER_DATA_URL='http://www2.census.gov/cgi-bin/shapefiles/multi-file-download?files=24_MARYLAND%2Ftl_2008_24_tabblock00.zip'
TIGER_SRID='4269'

# Necessary to run test/data without prerequisites.
#
.PHONY : test data


# The default task, since it comes first in the list.
#
all: clean test


test:
	./bin/run_tests


# Remove byte-compiled python code.
#
clean:
	find ./ -name '*.pyc' -print0 | xargs -0 rm -f


# Download the shapefiles from Tiger if they don't already exist.
# For now, we're only dealing with the Census 2000 Maryland Block
# data, so the filenames are hard-coded. Easy enough to change.
#
data:
	mkdir -p data/census-2000-block/maryland/
	if [ ! -f data/census-2000-block/maryland/tl_2008_24_tabblock00.shp ]; then \
		wget -O tiger.zip $(TIGER_DATA_URL); \
		unzip tiger.zip; \
		rm tiger.zip; \
		unzip srv/ftp/geo/tiger/TIGER2008/24_MARYLAND/tl_2008_24_tabblock00.zip \
                      -d ./data/census-2000-block/maryland/; \
		rm -rf srv; \
	fi;


# This task does a couple of things. First, it drops and re-creates
# the DB_NAME database (or schema, whatever). Then, it adds PL/pgSQL
# support to the database.
#
# At that point, we import the two PostGIS files, lwpostgis.sql and
# spatial_ref_sys.sql. These are magic as far as I'm concerned, but
# PostGIS requires them.
#
# Then, we import the Tiger data using shp2pgsql. The shapefiles
# should exist, since this task depends on the "data" task, which
# downloads said shapefiles.
#
# Finally, we create the table for the demographic data (obtained from
# the geographic header records), and populate that table with the output
# of the sf1blocks2sql script.
#
db: data
	dropdb -U $(DB_USER) $(DB_NAME)
	createdb -U $(DB_USER) $(DB_NAME)
	createlang -U $(DB_USER) plpgsql $(DB_NAME)

	psql -d $(DB_NAME) \
             -U $(DB_USER) \
             -f /usr/share/postgresql/contrib/lwpostgis.sql

	psql -d $(DB_NAME) \
             -U $(DB_USER) \
             -f /usr/share/postgresql/contrib/spatial_ref_sys.sql

	shp2pgsql -I                                                        \
		  -s $(TIGER_SRID)                                          \
	          data/census-2000-block/maryland/tl_2008_24_tabblock00.shp \
	          tiger                                                     \
                  | psql -U $(DB_USER) -d $(DB_NAME)

	psql -d $(DB_NAME) \
             -U $(DB_USER) \
             -f sql/create-sf1_blocks-table.sql

	bin/sf1blocks2sql src/Tests/Fixtures/SummaryFile1/mdgeo.uf1 sf1_blocks \
                          | psql -U postgres -d $(DB_NAME)