# -*- coding: cp1252 -*-
"""Common filenames and locations for topographic data, meshes and outputs.
"""


from os import sep, environ, getenv, getcwd,umask
from os.path import expanduser
import sys
from time import localtime, strftime, gmtime
from anuga.utilities.polygon import read_polygon, plot_polygons, is_inside_polygon, \
                                    number_mesh_triangles, polygon_area
from anuga.utilities.system_tools import get_user_name


# file and system info
#---------------------------------
codename = 'project.py' #used in copy_code_files

home = getenv('INUNDATIONHOME') #Sandpit's parent dir   
user = get_user_name()
#needed when running using mpirun, mpirun doesn't inherit umask from .bashrc
umask(002)

print home

# INUNDATIONHOME is the inundation directory, not the data directory.
home =home + sep +'data'


time = strftime('%Y%m%d_%H%M%S',gmtime()) #gets time for new dir
build_time = time+'_build'
run_time = time+'_run'
print 'time: ', time

tide = 0.0

#Making assumptions about the location of scenario data
state = 'sri_lanka'
scenario_name = 'galle'
scenario = 'scenario_galle'
'''
# onshore data provided by WA DLI
onshore_name = 'DLI_DTED_raster_clipped' # original

# AHO + DPI data + colin French coastline
coast_name = 'coastline_edited_w_DEM'
offshore_name = 'clipped_bathy'
offshore1_name = 'elev_501'
offshore2_name = 'inferrec_e'

#final topo name
combined_name ='dampier_combined_elevation'
combined_smaller_name = 'dampier_combined_elevation_small'
combined_smallest_name = 'dampier_combined_elevation_smallest'
'''
anuga_dir = home+sep+state+sep+scenario+sep+'anuga'+sep

#topographies_in_dir = home+sep+state+sep+scenario+sep+'elevation_final'+sep+
topographies_dir = anuga_dir+'topographies'+sep

# Filenames
#data_dir = 'deliverables' + sep + 'points' + sep 
galle_dem_name = topographies_dir + 'galle'
hikka_dem_name = topographies_dir +  'hikka'
coast_name = topographies_dir + 'Coast'
topo_dem_name = topographies_dir + 'topo'
bathycoa_dem_name = topographies_dir + 'bathycoa'
bathyfine_dem_name = topographies_dir + 'bathyfine'
canal_dem_name = topographies_dir + 'canal'
fort_dem_name = topographies_dir + 'gallefort'

combined_dem_name = topographies_dir + 'combined'
combined_canal_dem_name = topographies_dir + 'combined_canal'
combined_small_dem_name = topographies_dir + 'combined_small'
combined_canal_fort_dem_name = topographies_dir + 'combined_canal_fort'


polygons_dir = anuga_dir+'polygons'+sep

meshes_dir = anuga_dir+'meshes'+sep
meshes_dir_name = meshes_dir + scenario_name

#boundaries locations
boundaries_name = 'Sumatra2004_crop'

boundaries_in_dir = anuga_dir+'boundaries'+sep+'most'+sep
boundaries_in_dir_name = boundaries_in_dir + boundaries_name
boundaries_dir = anuga_dir+'boundaries'+sep
boundaries_dir_name = boundaries_dir + boundaries_name

#output locations
output_dir = anuga_dir+'outputs'+sep
output_build_time_dir = output_dir+build_time+sep
output_run_time_dir = output_dir +run_time+sep
output_run_time_dir_name = output_run_time_dir + scenario_name  #Used by post processing


###############################
# Domain definitions
###############################

# poly_clip is used to remove small part from the large coarse 100m data set,
# this hole is then filled with the high res 5m data
print 'poly dir',polygons_dir
poly_clip  = read_polygon(polygons_dir+ 'poly.csv')

# bounding polygon for study area
bounding_polygon = read_polygon(polygons_dir+'regional.csv')
res_factor=1
regional_res = 100000*res_factor
print 'Area of bounding polygon', polygon_area(bounding_polygon)/1000000.0

###############################
# Interior region definitions
###############################

# interior polygons
#poly_shallow1 = read_polygon(polygons_dir+'hikkaduwa.csv')
#poly_shallow2 = read_polygon(polygons_dir+'galle.csv')

poly_intermediate = read_polygon(polygons_dir+'intermediate.csv')
poly_shallow = read_polygon(polygons_dir+'shallow.csv')
poly_coast = read_polygon(polygons_dir+'coastmesh.csv')
poly_canal = read_polygon(polygons_dir+'canalmesh.csv')

intermediate_res = 20000*res_factor
shallow_res = 2000*res_factor
coast_res = 250*res_factor
canal_res = 10*res_factor
interior_regions = [[poly_intermediate, intermediate_res],
                    [poly_shallow, shallow_res],
                    [poly_coast, coast_res],
                    [poly_canal, canal_res]]

#plot_polygons([bounding_polygon,poly_intermediate,\
#               poly_shallow,poly_coast,poly_canal],\
#              figname='boundingpoly',verbose=False)

trigs_min = number_mesh_triangles(interior_regions, bounding_polygon, regional_res)

print 'min number triangles', trigs_min

poly_mainland = read_polygon(polygons_dir+'Initial_Condition.csv')


###################################################################
# Clipping regions for export to asc and regions for clipping data
###################################################################

# exporting asc grid
#eastingmin = 363000
#eastingmax = 418000
#northingmin = 8026600
#northingmax = 8145700

#for clipping (most) boundary file
#south_source = 
#north_source = 
#west_source = 
#east_source = 


#gauge_filename = 'gauges.csv'