#!/usr/bin/env python
#
# Create project files for all BTstack embedded examples in local port/esp32 folder

import os
import shutil
import sys
import time
import subprocess

mk_template = '''#
# BTstack example 'EXAMPLE' for ESP32 port
#
# Generated by TOOL
# On DATE

PROJECT_NAME := EXAMPLE
EXTRA_COMPONENT_DIRS := components

include $(IDF_PATH)/make/project.mk
'''

gatt_update_template = '''#!/bin/sh
DIR=`dirname $0`
BTSTACK_ROOT=$DIR/../../../../btstack
echo "Creating src/EXAMPLE.h from EXAMPLE.gatt"
$BTSTACK_ROOT/tool/compile_gatt.py $BTSTACK_ROOT/example/EXAMPLE.gatt $DIR/main/EXAMPLE.h
'''

# get script path
script_path = os.path.abspath(os.path.dirname(sys.argv[0]))

# path to examples
examples_embedded = script_path + "/../../example/"

# path to zephyr/samples/btstack
apps_btstack = ""

print("Creating examples in local folder")

# iterate over btstack examples
for file in os.listdir(examples_embedded):
    if not file.endswith(".c"):
        continue
    if file in ['panu_demo.c', 'sco_demo_util.c']:
        continue

    example = file[:-2]
    gatt_path = examples_embedded + example + ".gatt"

    # create folder
    apps_folder = apps_btstack + example + "/"
    if os.path.exists(apps_folder):
        shutil.rmtree(apps_folder)
    os.makedirs(apps_folder)

    # copy files
    for item in ['sdkconfig']:
        shutil.copyfile(script_path + '/template/' + item, apps_folder + '/' + item)

    # create Makefile file
    with open(apps_folder + "Makefile", "wt") as fout:
        fout.write(mk_template.replace("EXAMPLE", example).replace("TOOL", script_path).replace("DATE",time.strftime("%c")))

    # copy components folder
    shutil.copytree(script_path + '/template/components', apps_folder + '/components')

    # create main folder
    main_folder = apps_folder + "main/"
    if not os.path.exists(main_folder):
        os.makedirs(main_folder)

    # copy example file
    shutil.copyfile(examples_embedded + file, apps_folder + "/main/" + example + ".c")

    # add component.mk file to main folder
    shutil.copyfile(script_path + '/template/main/component.mk', apps_folder + "/main/component.mk")

    # create update_gatt.sh if .gatt file is present
    gatt_path = examples_embedded + example + ".gatt"
    if os.path.exists(gatt_path):
        update_gatt_script = apps_folder + "update_gatt_db.sh"
        with open(update_gatt_script, "wt") as fout:
            fout.write(gatt_update_template.replace("EXAMPLE", example))        
        os.chmod(update_gatt_script, 0o755)
        subprocess.call(update_gatt_script + "> /dev/null", shell=True)
        print("- %s including compiled GATT DB" % example)
    else:
        print("- %s" % example)