"""General constants for lambda functions."""

from enum import Enum
import re

from config import IGNORE_ALL_EVENTS
from config import OWS_PROFILE_ID
from config import OWS_PROFILE_ROLES
from config import OWS_PROFILE_TYPE

DEFAULT_HEADERS = {
    'Orchard-Profile-Type': OWS_PROFILE_TYPE,
    'Orchard-Profile-Id': OWS_PROFILE_ID,
    'Orchard-Roles': OWS_PROFILE_ROLES,
    'Accept-Encoding': 'gzip',
}

IGNORE_MESSAGE = (
    f'Ignoring events because IGNORE_ALL_EVENTS environment variable is set to {IGNORE_ALL_EVENTS}.'
    'To continue processing please remove this variable from lambda function configuration.'
)

IGNORE_EMPTY_PAYLOAD = 'Ignoring events because it"s an empty payload.'

FILE_KEY_REGEXP = re.compile(
    r"""
    (?P<account_type>[L])
    (?P<label_id>\d+)
    (?:\|(?P<contract_id>\d+))?_
    (?P<period_id>\d{1,4})_
    (?P<filename>[a-zA-Z0-9-_.*'()]+\.(?P<extension>\w{3,4}))$""",
    re.VERBOSE,
)

# File size in bytes
MAX_ALLOWED_FILE_SIZE_MB = 20
MAX_ALLOWED_FILE_SIZE = MAX_ALLOWED_FILE_SIZE_MB * 1024 * 1024


class Status(str, Enum):
    """Status."""

    STATUS_COMPLETED = 'COMPLETED'
    STATUS_FAIL = 'FAIL'


class FeatureFlag(str, Enum):
    """Feature Flag Enum."""

    EMAIL_ON_FAIL = 'moneyhub_internal_attachments_email'
    S3_EVENT = 'moneyhub_internal_attachments_s3_event'


class FileType(str, Enum):
    """File type."""

    PDF = 'pdf'
    CSV = 'csv'
    XLS = 'xls'
    XLSX = 'xlsx'
    PNG = 'png'
    JPG = 'jpg'
    DOC = 'doc'
    DOCX = 'docx'


class Error(str, Enum):
    """Error statuses."""

    CANNOT_PARSE_BODY = 'Failed to parse event body with error: {error}'
    FILE_KEY_VERIFICATION_MESSAGE = 'File Key does not match the pattern: {}'
    MISSING_KEY_EXCEPTION = 'Failed to parse event body. Missing key: {key}'
    MOVE_ERROR = 'Error during move operation, saving the original path.'
    S3_COPY_ERROR_TEMPLATE = 'Error while copying {src} to {dst}'
    S3_DELETE_ERROR_TEMPLATE = 'Error while deleting {src}'
    INVALID_PATH_MSG = (
        'Invalid file path. Files must be uploaded into the root directory of the bucket'
    )
    INVALID_NAME_MSG = (
        'File name does not match the pattern: LlabelID:contractId_periodID_filename.extension'
    )
    INVALID_SIZE_MSG = f'Invalid size. Must be less then {MAX_ALLOWED_FILE_SIZE_MB} Mb.'
    INVALID_EXTENSION_MSG = (
        f'Invalid extension. Please use one of the following: {", ".join(FileType)}'
    )


# Request Methods
class RequestMethod(str, Enum):
    """Request methods enum."""

    POST = 'post'


# Email constants
EMAIL_PROCESSING_ERROR = 'Something went wrong while processing the statement attachment.'
EMAIL_ATTACHMENT_ERROR_SUBJECT = 'Statement attachment upload error.'
EMAIL_ATTACHMENT_ERROR_BODY = """
<p>Hi Everybody,</p>
<p>
Unfortunately, it looks {full_file_name} was uploaded
on {upload_timestamp} to the statement attachments upload directory
and it does not conform to our upload criteria.
</p>
<p>
As a result this statement attachment will not show up
in workstation for the associated label.
</p>
{error_detail}
<p>
To resolve this issue, please refer to the Upload Policy section of
the <a href="{workflow_link}">Statement Attachments Workflow</a>
to confirm the file name and format are  correct.
</p>
<p>
If anything is incorrect,
please remove the file from the statement attachments upload directory,
make the necessary changes and re-upload the document.
</p>
<p>
If there is still an issue, please email
<a href="mailto:AccountingSquad@TheOrchard.com">
AccountingSquad@TheOrchard.com</a> with the filename and upload
timestamp as mentioned above.
</p>
<p>
Sincerely, <br>
The Orchard Accounting Bot
</p>
"""