# -*- coding: utf-8 -*-
from typing import Optional
import logging
import logging.config
import os
import traceback

from primordial.log.data import LogData
from primordial.constants import IP


LOG = logging.getLogger(__name__)


class ConfigLogData(LogData):
    """Store configuration log data for passing to other logging classes and easy retrieval."""
    TYPE_FIELD = 'type'
    SUB_TYPE_FIELD = 'sub_type'
    DATACENTER_FIELD = 'datacenter'
    ENVIRONMENT_FIELD = 'environment'
    FIELDS = (TYPE_FIELD, SUB_TYPE_FIELD, DATACENTER_FIELD, ENVIRONMENT_FIELD)

    DEFAULT_TYPE = 'hfs'
    DEFAULT_SUB_TYPE = 'vhfs'
    DEFAULT_DATACENTER = 'local'
    DEFAULT_ENVIRONMENT = 'LOCAL'

    def __init__(self) -> None:
        super().__init__()
        self.set(self.TYPE_FIELD, self.DEFAULT_TYPE)
        self.set(self.SUB_TYPE_FIELD, self.DEFAULT_SUB_TYPE)
        self.set(self.DATACENTER_FIELD, self.DEFAULT_DATACENTER)
        self.set(self.ENVIRONMENT_FIELD, self.DEFAULT_ENVIRONMENT)


class PayloadLogData(LogData):
    """Extract and store payload log data for parsing and easy retrieval."""
    DATA_SCHEMA_VERSION = '1.0.0'
    LINENO_FIELD = 'lineno'
    RAW_FIELDS = (LINENO_FIELD,)

    def __init__(self, record: Optional[logging.LogRecord] = None) -> None:
        self.freefields = True
        super().__init__(record)

    def load(self, record: logging.LogRecord) -> None:
        super().load(record)
        self.set('msg', record.getMessage())
        self.set('pathname', record.pathname)
        self.set('class_name', None)
        self.set('module', record.module)
        self.set('filename', record.filename)
        self.set('func_name', record.funcName)
        self.set(self.LINENO_FIELD, record.lineno)
        self.set('version', self.DATA_SCHEMA_VERSION)
        if record.exc_info:
            exc_type, exc_value, exc_traceback = record.exc_info
            self.set('strace', ''.join(
                traceback.format_exception(exc_type, exc_value, exc_traceback)))


class ServiceLogData(LogData):
    """Extract and store service log data for parsing and easy retrieval."""
    NAME_FIELD = 'name'
    THREAD_FIELD = 'thread'
    FIELDS = (NAME_FIELD, THREAD_FIELD)

    def load(self, record: logging.LogRecord) -> None:
        super().load(record)
        self.set(self.NAME_FIELD, os.getenv('SYSLOG_IDENT') or record.processName)
        self.set(self.THREAD_FIELD, str(record.thread))


class HostLogData(LogData):
    """Extract and store host log data for parsing and easy retrieval."""
    SERVICE_FIELD = 'service'
    HOSTNAME_FIELD = 'hostname'
    IP_FIELD = 'ip'
    FIELDS = (HOSTNAME_FIELD, IP_FIELD, SERVICE_FIELD)

    def load(self, record: logging.LogRecord) -> None:
        super().load(record)
        self.set(self.HOSTNAME_FIELD, os.getenv('HOSTNAME'))
        self.set(self.IP_FIELD, IP)
        serviceLogData = ServiceLogData(record)
        self.set(self.SERVICE_FIELD, serviceLogData)


class EnvelopeRole(LogData):
    """Store log role (e.g. ''PERFORMANCE' ) for passing to other classes and easy retrieval."""
    ROLE_FIELD = 'role'
    ROLE_DEVELOPMENT = 'DEVELOPMENT'
    ROLE_PERFORMANCE = 'PERFORMANCE'
    ROLE_BUSINESS_ANALYTICS = 'BUSINESS_ANALYTICS'

    FIELDS = (ROLE_FIELD,)

    DEFAULT_ROLE = ROLE_DEVELOPMENT

    def __init__(self) -> None:
        super().__init__()
        self.set(self.ROLE_FIELD, self.DEFAULT_ROLE)

    def __str__(self) -> str:
        return str(self.get(self.ROLE_FIELD))

    __repr__ = __str__


class EnvelopeVersion(LogData):
    """Store Envelope version (e.g. '1.0.0') for passing to other classes and easy retrieval."""
    MAJOR_FIELD = 'major'
    MINOR_FIELD = 'minor'
    PATCH_FIELD = 'patch'

    FIELDS = (MAJOR_FIELD, MINOR_FIELD, PATCH_FIELD)
    RAW_FIELDS = FIELDS

    DEFAULT_MAJOR = 1
    DEFAULT_MINOR = 0
    DEFAULT_PATCH = 0

    def __init__(self) -> None:
        super().__init__()
        self.set(self.MAJOR_FIELD, self.DEFAULT_MAJOR)
        self.set(self.MINOR_FIELD, self.DEFAULT_MINOR)
        self.set(self.PATCH_FIELD, self.DEFAULT_PATCH)

    def __str__(self) -> str:
        return str(".".join([str(self.get(field)) for field in self.FIELDS]))

    __repr__ = __str__

    @staticmethod
    def fromString(version: str) -> 'EnvelopeVersion':
        major, minor, patch = map(int, version.split("."))
        envelopeVersion = EnvelopeVersion()
        envelopeVersion.set(EnvelopeVersion.MAJOR_FIELD, major)
        envelopeVersion.set(EnvelopeVersion.MINOR_FIELD, minor)
        envelopeVersion.set(EnvelopeVersion.PATCH_FIELD, patch)
        return envelopeVersion


class EnvelopeDataSchema(LogData):
    """Store Envelope data schema version (e.g. '1.0.0') for passing to other classes and easy retrieval."""
    NAME_FIELD = 'name'
    MAJOR_FIELD = 'major'
    MINOR_FIELD = 'minor'
    PATCH_FIELD = 'patch'
    VERSION_SEPARATOR = '.'
    NAME_VERSION_SEPARATOR = '-'

    FIELDS = (NAME_FIELD, MAJOR_FIELD, MINOR_FIELD, PATCH_FIELD)
    RAW_FIELDS = FIELDS

    DEFAULT_NAME = 'default'
    DEFAULT_MAJOR = 1
    DEFAULT_MINOR = 0
    DEFAULT_PATCH = 0

    def __init__(self) -> None:
        super().__init__()
        self.set(self.NAME_FIELD, self.DEFAULT_NAME)
        self.set(self.MAJOR_FIELD, self.DEFAULT_MAJOR)
        self.set(self.MINOR_FIELD, self.DEFAULT_MINOR)
        self.set(self.PATCH_FIELD, self.DEFAULT_PATCH)

    def __str__(self) -> str:
        version = str(
            self.VERSION_SEPARATOR.join(
                [str(self.get(field)) for field in (self.MAJOR_FIELD, self.MINOR_FIELD, self.PATCH_FIELD)]))
        return str(self.NAME_VERSION_SEPARATOR.join([self.get(self.NAME_FIELD), version]))

    __repr__ = __str__

    @staticmethod
    def fromString(data_schema: str) -> 'EnvelopeDataSchema':
        name, version = map(str, data_schema.split(EnvelopeDataSchema.NAME_VERSION_SEPARATOR))
        major, minor, patch = map(int, version.split(EnvelopeDataSchema.VERSION_SEPARATOR))
        envelopeDataSchema = EnvelopeDataSchema()
        envelopeDataSchema.set(EnvelopeDataSchema.NAME_FIELD, name)
        envelopeDataSchema.set(EnvelopeDataSchema.MAJOR_FIELD, major)
        envelopeDataSchema.set(EnvelopeDataSchema.MINOR_FIELD, minor)
        envelopeDataSchema.set(EnvelopeDataSchema.PATCH_FIELD, patch)
        return envelopeDataSchema