##################################################################
##
## AMSS-NCKU ABE Test Program (Skip TwoPuncture if data exists)
## Modified from AMSS_NCKU_Program.py
## Author: Xiaoqu
## Modified: 2026/02/01
##
##################################################################


##################################################################

## Print program introduction

import print_information

print_information.print_program_introduction()

##################################################################

import AMSS_NCKU_Input as input_data

##################################################################

## Create directories to store program run data

import os
import shutil
import sys
import time

## Set the output directory according to the input file
File_directory = os.path.join(input_data.File_directory)

## Check if output directory exists and if TwoPuncture data is available
#skip_twopuncture = False
skip_twopuncture = True
output_directory = os.path.join(File_directory, "AMSS_NCKU_output")
binary_results_directory = os.path.join(output_directory, input_data.Output_directory)

if os.path.exists(File_directory):
    print( " Output directory already exists." )
    print()
    '''
    # Check if TwoPuncture initial data files exist
    if (input_data.Initial_Data_Method == "Ansorg-TwoPuncture"):
        twopuncture_output = os.path.join(output_directory, "TwoPunctureABE")
        input_par = os.path.join(output_directory, "input.par")

        if os.path.exists(twopuncture_output) and os.path.exists(input_par):
            print( " Found existing TwoPuncture initial data." )
            print( " Do you want to skip TwoPuncture phase and reuse existing data?" )
            print( " Input 'skip' to skip TwoPuncture and start ABE directly" )
            print( " Input 'regenerate' to regenerate everything from scratch" )
            print()
            
            while True:
                try:
                    inputvalue = input()
                    if ( inputvalue == "skip" ):
                        print( " Skipping TwoPuncture phase, will reuse existing initial data." )
                        print()
                        skip_twopuncture = True
                        break
                    elif ( inputvalue == "regenerate" ):
                        print( " Regenerating everything from scratch." )
                        print()
                        skip_twopuncture = False
                        break
                    else:
                        print( " Please input 'skip' or 'regenerate'." )
                except ValueError:
                    print( " Please input 'skip' or 'regenerate'." )
            
        else:
            print( " TwoPuncture initial data not found, will regenerate everything." )
            print()
'''
    # If not skipping, remove and recreate directory
    if not skip_twopuncture:
        shutil.rmtree(File_directory, ignore_errors=True)
        os.mkdir(File_directory)
        os.mkdir(output_directory)
        os.mkdir(binary_results_directory)
        figure_directory = os.path.join(File_directory, "figure")
        os.mkdir(figure_directory)
        shutil.copy("AMSS_NCKU_Input.py", File_directory)
        print( " Output directory has been regenerated." )
        print()
else:
    # Create fresh directory structure
    os.mkdir(File_directory)
    shutil.copy("AMSS_NCKU_Input.py", File_directory)
    os.mkdir(output_directory)
    os.mkdir(binary_results_directory)
    figure_directory = os.path.join(File_directory, "figure")
    os.mkdir(figure_directory)
    print( " Output directory has been generated." )
    print()

# Ensure figure directory exists
figure_directory = os.path.join(File_directory, "figure")
if not os.path.exists(figure_directory):
    os.mkdir(figure_directory)

##################################################################

## Output related parameter information

import setup

## Print and save input parameter information
setup.print_input_data( File_directory )

if not skip_twopuncture:
    setup.generate_AMSSNCKU_input()

setup.print_puncture_information()


##################################################################

## Generate AMSS-NCKU program input files based on the configured parameters

if not skip_twopuncture:
    print()
    print( " Generating the AMSS-NCKU input parfile for the ABE executable." )
    print()

    ## Generate cgh-related input files from the grid information

    import numerical_grid

    numerical_grid.append_AMSSNCKU_cgh_input()

    print()
    print( " The input parfile for AMSS-NCKU C++ executable file ABE has been generated." )
    print( " However, the input relevant to TwoPuncture need to be appended later." )
    print()


##################################################################

## Plot the initial grid configuration

if not skip_twopuncture:
    print()
    print( " Schematically plot the numerical grid structure." )
    print()

    import numerical_grid
    numerical_grid.plot_initial_grid()


##################################################################

## Generate AMSS-NCKU macro files according to the numerical scheme and parameters

if not skip_twopuncture:
    print()
    print( " Automatically generating the macro file for AMSS-NCKU C++ executable file ABE " )
    print( " (Based on the finite-difference numerical scheme) " )
    print()

    import generate_macrodef

    generate_macrodef.generate_macrodef_h()
    print( " AMSS-NCKU macro file macrodef.h has been generated. " )

    generate_macrodef.generate_macrodef_fh()
    print( " AMSS-NCKU macro file macrodef.fh has been generated. " )


##################################################################

# Compile the AMSS-NCKU program according to user requirements
# NOTE: ABE compilation is always performed, even when skipping TwoPuncture

print()
print( " Preparing to compile and run the AMSS-NCKU code as requested " )
print( " Compiling the AMSS-NCKU code based on the generated macro files " )
print()

AMSS_NCKU_source_path = "AMSS_NCKU_source"
AMSS_NCKU_source_copy = os.path.join(File_directory, "AMSS_NCKU_source_copy")

## If AMSS_NCKU source folder is missing, create it and prompt the user
if not os.path.exists(AMSS_NCKU_source_path):
    os.makedirs(AMSS_NCKU_source_path)
    print( " The AMSS-NCKU source files are incomplete; copy all source files into ./AMSS_NCKU_source. " )
    print( " Press Enter to continue. " )
    inputvalue = input()

# Copy AMSS-NCKU source files to prepare for compilation
# If skipping TwoPuncture and source_copy already exists, remove it first
if skip_twopuncture and os.path.exists(AMSS_NCKU_source_copy):
    shutil.rmtree(AMSS_NCKU_source_copy)

shutil.copytree(AMSS_NCKU_source_path, AMSS_NCKU_source_copy)

# Copy the generated macro files into the AMSS_NCKU source folder
if not skip_twopuncture:
    macrodef_h_path  = os.path.join(File_directory, "macrodef.h")
    macrodef_fh_path = os.path.join(File_directory, "macrodef.fh")
else:
    # When skipping TwoPuncture, use existing macro files from previous run
    macrodef_h_path  = os.path.join(File_directory, "macrodef.h")
    macrodef_fh_path = os.path.join(File_directory, "macrodef.fh")

shutil.copy2(macrodef_h_path,  AMSS_NCKU_source_copy)
shutil.copy2(macrodef_fh_path, AMSS_NCKU_source_copy)

# Compile related programs
import makefile_and_run

## Change working directory to the target source copy
os.chdir(AMSS_NCKU_source_copy)

## Build the main AMSS-NCKU executable (ABE or ABEGPU)
makefile_and_run.makefile_ABE()

## If the initial-data method is Ansorg-TwoPuncture, build the TwoPunctureABE executable
## Only build TwoPunctureABE if not skipping TwoPuncture phase
if (input_data.Initial_Data_Method == "Ansorg-TwoPuncture" ) and not skip_twopuncture:
    makefile_and_run.makefile_TwoPunctureABE()

## Change current working directory back up two levels
os.chdir('..')
os.chdir('..')

print()

##################################################################

## Copy the AMSS-NCKU executable (ABE/ABEGPU) to the run directory

if (input_data.GPU_Calculation == "no"):
    ABE_file = os.path.join(AMSS_NCKU_source_copy, "ABE")
elif (input_data.GPU_Calculation == "yes"):
    ABE_file = os.path.join(AMSS_NCKU_source_copy, "ABEGPU")

if not os.path.exists( ABE_file ):
    print()
    print( " Lack of AMSS-NCKU executable file ABE/ABEGPU; recompile AMSS_NCKU_source manually. " )
    print( " When recompilation is finished, press Enter to continue. " )
    inputvalue = input()

## Copy the executable ABE (or ABEGPU) into the run directory
shutil.copy2(ABE_file, output_directory)

## If the initial-data method is TwoPuncture, copy the TwoPunctureABE executable to the run directory
## Only copy TwoPunctureABE if not skipping TwoPuncture phase
if (input_data.Initial_Data_Method == "Ansorg-TwoPuncture" ) and not skip_twopuncture:
    TwoPuncture_file = os.path.join(AMSS_NCKU_source_copy, "TwoPunctureABE")

    if not os.path.exists( TwoPuncture_file ):
        print()
        print( " Lack of AMSS-NCKU executable file TwoPunctureABE; recompile TwoPunctureABE in AMSS_NCKU_source. " )
        print( " When recompilation is finished, press Enter to continue. " )
        inputvalue = input()

    ## Copy the TwoPunctureABE executable into the run directory
    shutil.copy2(TwoPuncture_file, output_directory)

##################################################################

## If the initial-data method is TwoPuncture, generate the TwoPuncture input files

if (input_data.Initial_Data_Method == "Ansorg-TwoPuncture" ) and not skip_twopuncture:

    print()
    print( " Initial data is chosen as Ansorg-TwoPuncture" )
    print()
    
    print()
    print( " Automatically generating the input parfile for the TwoPunctureABE executable " )
    print()
    
    import generate_TwoPuncture_input
    
    generate_TwoPuncture_input.generate_AMSSNCKU_TwoPuncture_input()
    
    print()
    print( " The input parfile for the TwoPunctureABE executable has been generated. " )
    print()
    
    ## Generated AMSS-NCKU TwoPuncture input filename
    AMSS_NCKU_TwoPuncture_inputfile      = 'AMSS-NCKU-TwoPuncture.input'
    AMSS_NCKU_TwoPuncture_inputfile_path = os.path.join( File_directory, AMSS_NCKU_TwoPuncture_inputfile )
 
    ## Copy and rename the file
    shutil.copy2( AMSS_NCKU_TwoPuncture_inputfile_path, os.path.join(output_directory, 'TwoPunctureinput.par') )
    
    ## Run TwoPuncture to generate initial-data files
    
    start_time = time.time()  # Record start time

    print()
    print()
    
    ## Change to the output (run) directory
    os.chdir(output_directory)

    ## Run the TwoPuncture executable
    import makefile_and_run
    makefile_and_run.run_TwoPunctureABE()
    
    ## Change current working directory back up two levels
    os.chdir('..')
    os.chdir('..')

elif (input_data.Initial_Data_Method == "Ansorg-TwoPuncture" ) and skip_twopuncture:
    print()
    print( " Skipping TwoPuncture execution, using existing initial data." )
    print()
    start_time = time.time()  # Record start time for ABE only
else:
    start_time = time.time()  # Record start time
    
##################################################################
    
## Update puncture data based on TwoPuncture run results

if not skip_twopuncture:
    import renew_puncture_parameter
    renew_puncture_parameter.append_AMSSNCKU_BSSN_input(File_directory, output_directory)

    ## Generated AMSS-NCKU input filename
    AMSS_NCKU_inputfile      = 'AMSS-NCKU.input'
    AMSS_NCKU_inputfile_path = os.path.join(File_directory, AMSS_NCKU_inputfile)
 
    ## Copy and rename the file
    shutil.copy2( AMSS_NCKU_inputfile_path, os.path.join(output_directory, 'input.par') )

    print()
    print( " Successfully copy all AMSS-NCKU input parfile to target dictionary. " )
    print()
else:
    print()
    print( " Using existing input.par file from previous run." )
    print()

##################################################################

## Launch the AMSS-NCKU program

print()
print()

## Change to the run directory
os.chdir( output_directory )

import makefile_and_run
makefile_and_run.run_ABE()

## Change current working directory back up two levels
os.chdir('..')
os.chdir('..')

end_time = time.time()
elapsed_time = end_time - start_time

##################################################################

## Copy some basic input and log files out to facilitate debugging

## Path to the file that stores calculation settings
AMSS_NCKU_error_file_path = os.path.join(binary_results_directory, "setting.par")
## Copy and rename the file for easier inspection
shutil.copy( AMSS_NCKU_error_file_path, os.path.join(output_directory, "AMSSNCKU_setting_parameter") )

## Path to the error log file
AMSS_NCKU_error_file_path = os.path.join(binary_results_directory, "Error.log")
## Copy and rename the error log
shutil.copy( AMSS_NCKU_error_file_path, os.path.join(output_directory, "Error.log") )

## Primary program outputs
AMSS_NCKU_BH_data         = os.path.join(binary_results_directory, "bssn_BH.dat"        )
AMSS_NCKU_ADM_data        = os.path.join(binary_results_directory, "bssn_ADMQs.dat"     )
AMSS_NCKU_psi4_data       = os.path.join(binary_results_directory, "bssn_psi4.dat"      )
AMSS_NCKU_constraint_data = os.path.join(binary_results_directory, "bssn_constraint.dat")
## copy and rename the file
shutil.copy( AMSS_NCKU_BH_data,         os.path.join(output_directory, "bssn_BH.dat"        ) )
shutil.copy( AMSS_NCKU_ADM_data,        os.path.join(output_directory, "bssn_ADMQs.dat"     ) )
shutil.copy( AMSS_NCKU_psi4_data,       os.path.join(output_directory, "bssn_psi4.dat"      ) )
shutil.copy( AMSS_NCKU_constraint_data, os.path.join(output_directory, "bssn_constraint.dat") )

## Additional program outputs
if (input_data.Equation_Class == "BSSN-EM"):
    AMSS_NCKU_phi1_data = os.path.join(binary_results_directory, "bssn_phi1.dat" )
    AMSS_NCKU_phi2_data = os.path.join(binary_results_directory, "bssn_phi2.dat" )
    shutil.copy( AMSS_NCKU_phi1_data, os.path.join(output_directory, "bssn_phi1.dat" ) )
    shutil.copy( AMSS_NCKU_phi2_data, os.path.join(output_directory, "bssn_phi2.dat" ) )
elif (input_data.Equation_Class == "BSSN-EScalar"):
    AMSS_NCKU_maxs_data = os.path.join(binary_results_directory, "bssn_maxs.dat" )
    shutil.copy( AMSS_NCKU_maxs_data, os.path.join(output_directory, "bssn_maxs.dat" ) )

##################################################################

## Plot the AMSS-NCKU program results

print()
print( " Plotting the txt and binary results data from the AMSS-NCKU simulation " )
print()


import plot_xiaoqu
import plot_GW_strain_amplitude_xiaoqu

## Plot black hole trajectory
plot_xiaoqu.generate_puncture_orbit_plot(   binary_results_directory, figure_directory )
plot_xiaoqu.generate_puncture_orbit_plot3D( binary_results_directory, figure_directory )

## Plot black hole separation vs. time
plot_xiaoqu.generate_puncture_distence_plot( binary_results_directory, figure_directory )

## Plot gravitational waveforms (psi4 and strain amplitude)
for i in range(input_data.Detector_Number):
    plot_xiaoqu.generate_gravitational_wave_psi4_plot( binary_results_directory, figure_directory, i )
    plot_GW_strain_amplitude_xiaoqu.generate_gravitational_wave_amplitude_plot( binary_results_directory, figure_directory, i )

## Plot ADM mass evolution
for i in range(input_data.Detector_Number):
    plot_xiaoqu.generate_ADMmass_plot( binary_results_directory, figure_directory, i )

## Plot Hamiltonian constraint violation over time
for i in range(input_data.grid_level):
    plot_xiaoqu.generate_constraint_check_plot( binary_results_directory, figure_directory, i )

## Plot stored binary data
plot_xiaoqu.generate_binary_data_plot( binary_results_directory, figure_directory )

print()
print( f" This Program Cost = {elapsed_time} Seconds " )
print()


##################################################################

print()
print( " The AMSS-NCKU-Python simulation is successfully finished, thanks for using !!! " )
print()

##################################################################