import os, shutil

from g import templates_dir, config_dir, data_dir, DEFAULT_UID, DEFAULT_GID
from .jinja import render_jinja
from .misc import prepare_dir

chart_museum_temp_dir = os.path.join(templates_dir, "chartserver")
chart_museum_env_temp = os.path.join(chart_museum_temp_dir, "env.jinja")

chart_museum_config_dir = os.path.join(config_dir, "chartserver")
chart_museum_env = os.path.join(config_dir, "chartserver", "env")

chart_museum_data_dir = os.path.join(data_dir, 'chart_storage')

def prepare_chartmuseum(config_dict):

    redis_host = config_dict['redis_host']
    redis_port = config_dict['redis_port']
    redis_password = config_dict['redis_password']
    redis_db_index_chart = config_dict['redis_db_index_chart']
    storage_provider_name = config_dict['storage_provider_name']
    storage_provider_config_map = config_dict['storage_provider_config']

    prepare_dir(chart_museum_data_dir, uid=DEFAULT_UID, gid=DEFAULT_GID)
    prepare_dir(chart_museum_config_dir)

    # process redis info
    cache_store = "redis"
    cache_redis_password = redis_password
    cache_redis_addr = "{}:{}".format(redis_host, redis_port)
    cache_redis_db_index = redis_db_index_chart


    # process storage info
    #default using local file system
    storage_driver = "local"
    # storage provider configurations
    # please be aware that, we do not check the validations of the values for the specified keys
    # convert the configs to config map
    storage_provider_config_options = []
    if storage_provider_name == 's3':
        # aws s3 storage
        storage_driver = "amazon"
        storage_provider_config_options.append("STORAGE_AMAZON_BUCKET=%s" % (storage_provider_config_map.get("bucket") or '') )
        storage_provider_config_options.append("STORAGE_AMAZON_PREFIX=%s" % (storage_provider_config_map.get("rootdirectory") or '') )
        storage_provider_config_options.append("STORAGE_AMAZON_REGION=%s" % (storage_provider_config_map.get("region") or '') )
        storage_provider_config_options.append("STORAGE_AMAZON_ENDPOINT=%s" % (storage_provider_config_map.get("regionendpoint") or '') )
        storage_provider_config_options.append("AWS_ACCESS_KEY_ID=%s" % (storage_provider_config_map.get("accesskey") or '') )
        storage_provider_config_options.append("AWS_SECRET_ACCESS_KEY=%s" % (storage_provider_config_map.get("secretkey") or '') )
    elif storage_provider_name == 'gcs':
        # google cloud storage
        storage_driver = "google"
        storage_provider_config_options.append("STORAGE_GOOGLE_BUCKET=%s" % ( storage_provider_config_map.get("bucket") or '') )
        storage_provider_config_options.append("STORAGE_GOOGLE_PREFIX=%s" % ( storage_provider_config_map.get("rootdirectory") or '') )

        if storage_provider_config_map.get("keyfile"):
            storage_provider_config_options.append('GOOGLE_APPLICATION_CREDENTIALS=%s' % '/etc/chartserver/gcs.key')
    elif storage_provider_name == 'azure':
        # azure storage
        storage_driver = "microsoft"
        storage_provider_config_options.append("STORAGE_MICROSOFT_CONTAINER=%s" % ( storage_provider_config_map.get("container") or '') )
        storage_provider_config_options.append("AZURE_STORAGE_ACCOUNT=%s" % ( storage_provider_config_map.get("accountname") or '') )
        storage_provider_config_options.append("AZURE_STORAGE_ACCESS_KEY=%s" % ( storage_provider_config_map.get("accountkey") or '') )
        storage_provider_config_options.append("STORAGE_MICROSOFT_PREFIX=/azure/harbor/charts")
    elif storage_provider_name == 'swift':
        # open stack swift
        storage_driver = "openstack"
        storage_provider_config_options.append("STORAGE_OPENSTACK_CONTAINER=%s" % ( storage_provider_config_map.get("container") or '') )
        storage_provider_config_options.append("STORAGE_OPENSTACK_PREFIX=%s" % ( storage_provider_config_map.get("rootdirectory") or '') )
        storage_provider_config_options.append("STORAGE_OPENSTACK_REGION=%s" % ( storage_provider_config_map.get("region") or '') )
        storage_provider_config_options.append("OS_AUTH_URL=%s" % ( storage_provider_config_map.get("authurl") or '') )
        storage_provider_config_options.append("OS_USERNAME=%s" % ( storage_provider_config_map.get("username") or '') )
        storage_provider_config_options.append("OS_PASSWORD=%s" % ( storage_provider_config_map.get("password") or '') )
        storage_provider_config_options.append("OS_PROJECT_ID=%s" % ( storage_provider_config_map.get("tenantid") or '') )
        storage_provider_config_options.append("OS_PROJECT_NAME=%s" % ( storage_provider_config_map.get("tenant") or '') )
        storage_provider_config_options.append("OS_DOMAIN_ID=%s" % ( storage_provider_config_map.get("domainid") or '') )
        storage_provider_config_options.append("OS_DOMAIN_NAME=%s" % ( storage_provider_config_map.get("domain") or '') )
    elif storage_provider_name == 'oss':
        # aliyun OSS
        storage_driver = "alibaba"
        bucket = storage_provider_config_map.get("bucket") or ''
        endpoint = storage_provider_config_map.get("endpoint") or ''
        if endpoint.startswith(bucket + "."):
            endpoint = endpoint.replace(bucket + ".", "")
        storage_provider_config_options.append("STORAGE_ALIBABA_BUCKET=%s" % bucket )
        storage_provider_config_options.append("STORAGE_ALIBABA_ENDPOINT=%s" % endpoint )
        storage_provider_config_options.append("STORAGE_ALIBABA_PREFIX=%s" % ( storage_provider_config_map.get("rootdirectory") or '') )
        storage_provider_config_options.append("ALIBABA_CLOUD_ACCESS_KEY_ID=%s" % ( storage_provider_config_map.get("accesskeyid") or '') )
        storage_provider_config_options.append("ALIBABA_CLOUD_ACCESS_KEY_SECRET=%s" % ( storage_provider_config_map.get("accesskeysecret") or '') )
    else:
        # use local file system
        storage_provider_config_options.append("STORAGE_LOCAL_ROOTDIR=/chart_storage")

    # generate storage provider configuration
    all_storage_provider_configs = ('\n').join(storage_provider_config_options)

    render_jinja(
    chart_museum_env_temp,
    chart_museum_env,
    cache_store=cache_store,
    cache_redis_addr=cache_redis_addr,
    cache_redis_password=cache_redis_password,
    cache_redis_db_index=cache_redis_db_index,
    core_secret=config_dict['core_secret'],
    storage_driver=storage_driver,
    all_storage_driver_configs=all_storage_provider_configs,
    public_url=config_dict['public_url'],
    chart_absolute_url=config_dict['chart_absolute_url'],
    internal_tls=config_dict['internal_tls'])