"""
This file contains all your file and directory definitions 
for elevation, meshes and outputs.
"""

import os
from anuga.utilities.system_tools import get_user_name, get_host_name
from time import localtime, strftime, gmtime
from os.path import join, exists


#-------------------------------------------------------------------------------
# Directory setup
#-------------------------------------------------------------------------------

# this section needs to be updated to reflect the modelled community.
# Note, the user needs to set up the directory system accordingly
state = 'new_south_wales'
scenario_name = 'batemans_bay'
scenario_folder = 'batemans_bay_tsunami_scenario_2009'

#-------------------------------------------------------------------------------
# Initial Conditions
#-------------------------------------------------------------------------------

# Model specific parameters.
# One or all can be changed each time the run_model script is executed
tide = 0.0                # difference between MSL and HAT (1.0)

# the event number or the mux file name
##event_number = 58129     #1 in 200 yr Puyesgur
##event_number = 58115     #1 in 500 yr Puysegur
##event_number = 58226     #1 in 1000 yr Puysegur
##event_number = 58284     #1 in 2000 yr Puysegur (Event 3)
##event_number = 58286     #1 in 5000 yr Puysegur
event_number = 58346     #1 in 10000 yr Puysegur (Event 1)

##event_number = 51077     #1 in 200 yr New Hebrides
##event_number = 51378     #1 in 500 yr New Hebrides
##event_number = 51347     #1 in 1000 yr New Hebrides
##event_number = 51292     #1 in 2000 yr New Hebrides
##event_number = 51424     #1 in 5000 yr New Hebrides
##event_number = 51204     #1 in 10000 yr New Hebrides (Event 2)

######event_number = 58368      #1 in 100 000 yr Puysegur
######event_number = 51436      #1 in 100 000 yr New Hebrides
######event_number = 58272      #1 in ~15000 yr Puysegur
######event_number = 51445      #1 in ~15000 yr New Hebrides

alpha = 0.1             # smoothing parameter for mesh
friction=0.01           # manning's friction coefficient
starttime=0             # start time for simulation
finaltime=60000         # final time for simulation

setup = 'final'         # This can be one of three values
                        #    trial - coarsest mesh, fast
                        #    basic - coarse mesh
                        #    final - fine mesh, slowest

#-------------------------------------------------------------------------------
# Output filename
#
# Your output filename should be unique between different runs on different data.
# The list of items below will be used to create a file in your output directory.
# Your user name and time+date will be automatically added.  For example,
#     [setup, tide, event_number]
# will result in a filename like
#     20090212_091046_run_final_0_27283_rwilson
#-------------------------------------------------------------------------------

output_comment = [setup, tide, event_number]

#-------------------------------------------------------------------------------
# Input Data
#-------------------------------------------------------------------------------

# ELEVATION DATA
# Used in build_elevation.py
# Format for ascii grids, as produced in ArcGIS + a projection file
ascii_grid_filenames = []
                    
# Format for point is x,y,elevation (with header)
point_filenames = []
          

### Add csv header list to all files in point_filenames
##headerlist = ['x', 'y', 'elevation'] 
##for f in point_filenames:
##    add_csv_header(join(topographies_folder, f), headerlist)

    # BOUNDING POLYGON - for data clipping and estimate of triangles in mesh
# Used in build_elevation.py
# Format for points easting,northing (no header)
bounding_polygon_filename = 'bounding_polygon.csv'
bounding_polygon_maxarea = 100000

# INTERIOR REGIONS -  for designing the mesh
# Used in run_model.py
# Format for points easting,northing (no header)

interior_regions_data = [['area_of_interest.csv', 500],
                        ['area_of_significance.csv', 2500],
                        ['shallow_water.csv', 10000]]


# LAND - used to set the initial stage/water to be offcoast only
# Used in run_model.py.  Format for points easting,northing (no header)
land_initial_conditions_filename = [['initial_conditions.csv', 0]]
                                  

# GAUGES - for creating timeseries at a specific point
# Used in get_timeseries.py.  
# Format easting,northing,name,elevation (with header)
gauges_filename = 'gauges.csv'

# BUILDINGS EXPOSURE - for identifying inundated houses
# Used in run_building_inundation.py
# Format latitude,longitude etc (geographic)
##building_exposure_filename = '' # from NEXIS

# AREA OF IMAGES - Extent of each image to find out highest runup
# Header - easting,northing,id,value
# Used in get_runup.py
images_filename = ''

# BOUNDING POLYGON - used in build_boundary.py and run_model.py respectively
# NOTE: when files are put together the points must be in sequence
# For ease go clockwise!
# Check the run_model.py for boundary_tags

# Thinned ordering file from Hazard Map (geographic)
# Format is index,latitude,longitude (with header)
urs_order_filename = 'thinned_boundary_ordering_extend.csv'

# Landward bounding points
# Format easting,northing (no header)
landward_boundary_filename = 'landward_boundary_extend.csv'

# MUX input filename.
# If a meta-file from EventSelection is used, set 'multi-mux' to True.
# If a single MUX stem filename (*.grd) is used, set 'multi-mux' to False.
##mux_input_filename = event_number # to be found in event_folder
                                    # (ie boundaries/event_number/)
##multi_mux = False
mux_input_filename = 'event.list'
multi_mux = True

zone = 56
#-------------------------------------------------------------------------------
# Clipping regions for export to asc and regions for clipping data
# Final inundation maps should only be created in regions of the finest mesh
#-------------------------------------------------------------------------------

# ASCII export grid for Busselton
xminBusselton = 340000
xmaxBusselton = 352000
yminBusselton = 6271500
ymaxBusselton = 6280000

# ASCII export grid for Bunbury
xminBunbury = 369000
xmaxBunbury = 381000
yminBunbury = 6308000
ymaxBunbury = 6316500

################################################################################
################################################################################
####         NOTE: NOTHING WOULD NORMALLY CHANGE BELOW THIS POINT.          ####
################################################################################
################################################################################

# Get system user and host names.
# These values can be used to distinguish between two similar runs by two
# different users or runs by the same user on two different machines.
user = get_user_name()
host = get_host_name()

# Environment variable names.
# The inundation directory, not the data directory.
ENV_INUNDATIONHOME = 'ANUGADATA'

#-------------------------------------------------------------------------------
# Output Elevation Data
#-------------------------------------------------------------------------------

# Output filename for elevation
# this is a combination of all the data generated in build_elevation.py
combined_elevation_basename = scenario_name + '_combined_elevation'

#-------------------------------------------------------------------------------
# Directory Structure
#-------------------------------------------------------------------------------

# determines time for setting up output directories
time = strftime('%Y%m%d_%H%M%S', localtime()) 
gtime = strftime('%Y%m%d_%H%M%S', gmtime()) 
build_time = time + '_build'
run_time = time + '_run_'

# create paths generated from environment variables.
home = join(os.getenv(ENV_INUNDATIONHOME), 'data') # Absolute path for data folder
    
# check various directories/files that must exist
anuga_folder = join(home, state, scenario_folder, 'anuga')
topographies_folder = join(anuga_folder, 'topographies')
polygons_folder = join(anuga_folder, 'polygons')
boundaries_folder = join(anuga_folder, 'boundaries')
output_folder = join(anuga_folder, 'outputs')
gauges_folder = join(anuga_folder, 'gauges')
meshes_folder = join(anuga_folder, 'meshes')
event_folder = join(boundaries_folder, str(event_number))

#-------------------------------------------------------------------------------
# Location of input and output data
#-------------------------------------------------------------------------------

# Convert the user output_comment to a string for run_model.py
output_comment = ('_'.join([str(x) for x in output_comment if x != user])
                  + '_' + user)

# The absolute pathname of the all elevation, generated in build_elevation.py
combined_elevation = join(topographies_folder, combined_elevation_basename)

# The absolute pathname of the mesh, generated in run_model.py
meshes = join(meshes_folder, scenario_name) + '.msh'

# The pathname for the urs order points, used within build_urs_boundary.py
urs_order = join(boundaries_folder, urs_order_filename)

# The absolute pathname for the landward points of the bounding polygon,
# Used within run_model.py)
landward_boundary = join(boundaries_folder, landward_boundary_filename)

# The absolute pathname for the .sts file, generated in build_boundary.py
event_sts = join(event_folder, scenario_name)

# The absolute pathname for the output folder names
# Used for build_elevation.py
output_build = join(output_folder, build_time) + '_' + str(user) 
# Used for run_model.py
output_run = join(output_folder, run_time) + output_comment 
# Used by post processing
output_run_time = join(output_run, scenario_name) 

# The absolute pathname for the gauges file
# Used for get_timeseries.py
gauges = join(gauges_folder, gauges_filename)       

# The absolute pathname for the building file
# Used for run_building_inundation.py
##building_exposure = join(gauges_folder, building_exposure_filename)

# The absolute pathname for the image file
# Used for get_runup.py
if images_filename:
    images = join(polygons_folder, images_filename)

# full path to where MUX files (or meta-files) live
mux_input = join(event_folder, mux_input_filename)