"""
Copyright (c) 2019 Matthew Lemon

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy,  modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the  Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
IN THE SOFTWARE. """
import click
import logging
import sys
from click import version_option
from functools import partial

from datamaps import __version__
from engine.adapters import cli as engine_cli
from engine.config import Config as engine_config
from engine.exceptions import (
    DatamapFileEncodingError,
    MalFormedCSVHeaderException,
    MissingCellKeyError,
    MissingLineError,
    MissingSheetFieldError,
    NoApplicableSheetsInTemplateFiles,
    RemoveFileWithNoSheetRequiredByDatamap,
    DatamapNotCSVException,
)

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s: %(levelname)s - %(message)s",
    datefmt="%d-%b-%y %H:%M:%S",
)
logger = logging.getLogger(__name__)


be_logger = logging.getLogger("engine.use_cases.parsing")

# we want to pass echo func down to bcompiler-engine
output_funcs = dict(
    click_echo_green=partial(click.secho, nl=False, fg="green"),
    click_echo_yellow=partial(click.secho, nl=False, fg="yellow"),
    click_echo_red=partial(click.secho, nl=False, fg="red"),
    click_echo_white=partial(click.secho, nl=False, fg="white"),
)


class Config:
    def __init__(self):
        self.verbose = False


pass_config = click.make_pass_decorator(Config, ensure=True)


@version_option(__version__)
@click.group()
@click.option("--verbose", is_flag=True)
@pass_config
def cli(config, verbose):
    """
    datamaps is a tool for moving data to and from spreadsheets. Documentation available
    at https://www.datamaps.twentyfoursoftware.com (comming soon).

    Please note: datamaps is beta software! Development is ongoing and the program
    is undergoing continuous change.
    """
    click.secho(
        f"Welcome to datamaps {__version__} © Twenty Four Software", fg="yellow"
    )
    config.verbose = verbose
    engine_config.initialise()


@cli.group("import")
def _import():
    """
    Import something (a batch of populated templates, a datamap, etc).
    """


@cli.group("export")
def export():
    """
    Export data from one format to another. Current functionality allows for data
    to be exported from a Master spreadsheet to one or many blank Templates.
    """


@cli.group("report")
def report():
    """Create a report"""


@_import.command()
@click.option(
    "--to-master",
    "-m",
    is_flag=True,
    default=False,
    help="Create master.xlsx immediately",
)
@click.option(
    "--datamap", "-d", help="Path to datamap file",
)
def templates(to_master, datamap):
    if to_master:
        try:
            engine_cli.import_and_create_master(
                echo_funcs=output_funcs, datamap=datamap
            )
        except MalFormedCSVHeaderException as e:
            click.echo(
                click.style(
                    "Incorrect headers in datamap. {}.".format(e.args[0]),
                    bold=True,
                    reverse=True,
                    fg="cyan",
                )
            )
        except RemoveFileWithNoSheetRequiredByDatamap:
            logging.info("Import complete.")
        except RuntimeError:
            logger.critical(
                "Not completing import process due to runtime error. Please check output for CRITICAL messages to diagnose."
            )
        except NoApplicableSheetsInTemplateFiles:
            logger.critical("Not completing import process.")
        except FileNotFoundError as e:
            logger.critical(e)
            sys.exit(1)
        except MissingSheetFieldError as e:
            logger.critical(e)
            sys.exit(1)
        except MissingCellKeyError as e:
            logger.critical(e)
            sys.exit(1)
        except DatamapFileEncodingError as e:
            logger.critical(e)
            sys.exit(1)
        except DatamapNotCSVException as e:
            logger.critical(e)
            sys.exit(1)

    else:
        click.secho("Not implemented yet. Try --to-master/-m flag")


@export.command()
# @click.argument("datamap")
# @click.argument("blank")
@click.argument("master", metavar="FILE_PATH")
@click.option(
    "--datamap", "-d", help="Path to datamap file",
)
def master(master, datamap):
    """Export data from a Master file

    Export data from master file whose path is FILE_PATH to a series of
    blank Template files.
    """
    input_dir = engine_config.PLATFORM_DOCS_DIR / "input"

    blank_fn = engine_config.config_parser["DEFAULT"]["blank file name"]
    if datamap:
        datamap_fn = datamap
    else:
        datamap_fn = engine_config.config_parser["DEFAULT"]["datamap file name"]

    blank = input_dir / blank_fn
    datamap = input_dir / datamap_fn

    #   click.secho(f"EXPORTING master {master} to templates based on {blank}...")
    be_logger.info(f"Exporting master {master} to templates based on {blank}.")

    try:
        engine_cli.write_master_to_templates(blank, datamap, master)
    except (FileNotFoundError, RuntimeError) as e:
        logger.critical(str(e))
        sys.exit(1)
    except MissingSheetFieldError as e:
        logger.critical(e)
        sys.exit(1)
    except MissingCellKeyError as e:
        logger.critical(e)
        sys.exit(1)
    except DatamapFileEncodingError as e:
        logger.critical(e)
        sys.exit(1)
    except MissingLineError as e:
        logger.critical(e)
        sys.exit(1)
    except DatamapNotCSVException as e:
        logger.critical(e)
        sys.exit(1)
    be_logger.info("Export complete.")


@report.command()
@click.argument("target_file")
def data_validations(target_file):
    """Requires the path to the target spreadsheet file."""
    logger.info(f"Getting data validations from: {target_file}")
    try:
        report = engine_cli.report_data_validations_in_file(target_file)
    except FileNotFoundError as e:
        logger.critical(e)
        sys.exit(1)
    for r in report:
        logger.info(r)


@cli.command()
def check():
    """
    Checks for a correctly-named blank template in the input directory and
    a datamap file in the input directory. Checks for correct headers in datamap.
    """
    try:
        engine_cli.check_aux_files(engine_config)
    except MalFormedCSVHeaderException as e:
        logger.critical(e)
        sys.exit(1)
    except MissingSheetFieldError as e:
        logger.critical(e)
        sys.exit(1)
    except MissingCellKeyError as e:
        logger.critical(e)
        sys.exit(1)
    except DatamapFileEncodingError as e:
        logger.critical(e)
        sys.exit(1)
    except MissingLineError as e:
        logger.critical(e)
        sys.exit(1)