"""Ingestion Workflow."""
from garcon.param import StaticParam
from garcon_contrib.dynamo_feed_status import garcon_feed_status

from feed_ingestion.flows import base
from feed_ingestion.flows.delphi_crm import config
from feed_ingestion.flows.delphi_crm import tasks
from feed_ingestion.tasks import feed_status_tasks, overall_status_tasks


class Flow(base.FlowBase, base.FlowConfigMixin):
    """Class representing the workflow."""

    def __init__(self):
        """Initialize flow object."""
        super(Flow, self).__init__(feed_name=config.feed_name, version='1.0')
        self.timeout = 1 * 60 * 60

    def workflow_id(self, initial_context):
        """Generate workflow id.

        Args:
            initial_context (dict): The initial context for the flow.
        Returns:
            str: A unique identifier for a workflow being executed.
        """
        report = initial_context['report']
        date = initial_context['context_date']
        workflow_id = '-'.join([self.name, report, date])

        return workflow_id

    def contextified_feed_name(self, context):
        """Get feed_name in context.

        Args:
            context (dict): The context of the flow.
        Returns:
            str: Contextified feed name.
        """
        report = context['report']
        return '_'.join([self.feed_name, report])

    def decider(self, schedule):
        """Activity decider.

        Args:
            schedule (callable): The scheduler method.
        """
        bootstrap = schedule(
            'bootstrap',
            self.bootstrap)

        if bootstrap.result.get('bootstrap.stop'):
            return

        check_files_on_s3 = schedule(
            'check_files_on_s3',
            self.check_files_on_s3,
            requires=[bootstrap])

        if check_files_on_s3.result.get('check_files_on_s3.stop'):
            return

        load_staging_raw_table = schedule(
            'load_staging_raw_table',
            self.load_staging_raw_table,
            requires=[check_files_on_s3])

        schedule(
            'set_overall_status_ingested',
            self.set_status_to_ingested,
            requires=[load_staging_raw_table])

    @property
    def bootstrap(self):
        """Bootstrap initial configuration."""
        return self.create(
            name='bootstrap',
            tasks=base.SyncRunner(
                tasks.bootstrap.fill(
                    namespace='bootstrap',
                    date='context_date',
                    report='report',
                    reload='reload',
                )))

    @property
    def check_files_on_s3(self):
        """Check if there are some new files in s3_download_path."""
        return self.create(
            name='check_files_on_s3',
            tasks=base.SyncRunner(
                feed_status_tasks.check_files_on_s3.fill(
                    namespace='check_files_on_s3',
                    feed_name='bootstrap.feed_name',
                    date='bootstrap.date',
                    file_pattern='bootstrap.file_pattern',
                    s3_download_path='bootstrap.s3_dir_path')))

    @property
    def load_staging_raw_table(self):
        """Create temp staging raw table."""
        return self.create(
            name='load_staging_raw_table_reports',
            tasks=base.SyncRunner(
                tasks.load_staging_raw_table_reports.fill(
                    namespace='load_staging_raw_table_reports',
                    date='bootstrap.date',
                    feed_name='bootstrap.feed_name',
                    report_name='bootstrap.report_name',
                    staging_raw_table_name='bootstrap.staging_raw_table',
                    s3_dir_path='bootstrap.s3_dir_path',
                    file_name='bootstrap.source_file_name')))

    @property
    def set_status_to_ingested(self):
        """Set overall feed status to STATUS_INGESTED."""
        return self.create(
            name='set_status_to_ingested',
            tasks=base.SyncRunner(
                overall_status_tasks.set_overall_status.fill(
                    namespace='set_status_to_ingested',
                    feed_name='bootstrap.feed_name',
                    date='bootstrap.date',
                    status=StaticParam(
                        garcon_feed_status.STATUS_INGESTED))))