"""This component provides HA sensor support for Travis CI framework."""
from datetime import timedelta
import logging

from travispy import TravisPy
from travispy.errors import TravisError
import voluptuous as vol

from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import (
    ATTR_ATTRIBUTION,
    CONF_API_KEY,
    CONF_MONITORED_CONDITIONS,
    CONF_SCAN_INTERVAL,
    TIME_SECONDS,
)
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity import Entity

_LOGGER = logging.getLogger(__name__)

ATTRIBUTION = "Information provided by https://travis-ci.org/"

CONF_BRANCH = "branch"
CONF_REPOSITORY = "repository"

DEFAULT_BRANCH_NAME = "master"

SCAN_INTERVAL = timedelta(seconds=30)

# sensor_type [ description, unit, icon ]
SENSOR_TYPES = {
    "last_build_id": ["Last Build ID", "", "mdi:card-account-details"],
    "last_build_duration": ["Last Build Duration", TIME_SECONDS, "mdi:timelapse"],
    "last_build_finished_at": ["Last Build Finished At", "", "mdi:timetable"],
    "last_build_started_at": ["Last Build Started At", "", "mdi:timetable"],
    "last_build_state": ["Last Build State", "", "mdi:github"],
    "state": ["State", "", "mdi:github"],
}

NOTIFICATION_ID = "travisci"
NOTIFICATION_TITLE = "Travis CI Sensor Setup"

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
    {
        vol.Required(CONF_API_KEY): cv.string,
        vol.Required(CONF_MONITORED_CONDITIONS, default=list(SENSOR_TYPES)): vol.All(
            cv.ensure_list, [vol.In(SENSOR_TYPES)]
        ),
        vol.Required(CONF_BRANCH, default=DEFAULT_BRANCH_NAME): cv.string,
        vol.Optional(CONF_REPOSITORY, default=[]): vol.All(cv.ensure_list, [cv.string]),
        vol.Optional(CONF_SCAN_INTERVAL, default=SCAN_INTERVAL): cv.time_period,
    }
)


def setup_platform(hass, config, add_entities, discovery_info=None):
    """Set up the Travis CI sensor."""

    token = config.get(CONF_API_KEY)
    repositories = config.get(CONF_REPOSITORY)
    branch = config.get(CONF_BRANCH)

    try:
        travis = TravisPy.github_auth(token)
        user = travis.user()

    except TravisError as ex:
        _LOGGER.error("Unable to connect to Travis CI service: %s", str(ex))
        hass.components.persistent_notification.create(
            "Error: {}<br />"
            "You will need to restart hass after fixing."
            "".format(ex),
            title=NOTIFICATION_TITLE,
            notification_id=NOTIFICATION_ID,
        )
        return False

    sensors = []

    # non specific repository selected, then show all associated
    if not repositories:
        all_repos = travis.repos(member=user.login)
        repositories = [repo.slug for repo in all_repos]

    for repo in repositories:
        if "/" not in repo:
            repo = f"{user.login}/{repo}"

        for sensor_type in config.get(CONF_MONITORED_CONDITIONS):
            sensors.append(TravisCISensor(travis, repo, user, branch, sensor_type))

    add_entities(sensors, True)
    return True


class TravisCISensor(Entity):
    """Representation of a Travis CI sensor."""

    def __init__(self, data, repo_name, user, branch, sensor_type):
        """Initialize the sensor."""
        self._build = None
        self._sensor_type = sensor_type
        self._data = data
        self._repo_name = repo_name
        self._user = user
        self._branch = branch
        self._state = None
        self._name = "{} {}".format(self._repo_name, SENSOR_TYPES[self._sensor_type][0])

    @property
    def name(self):
        """Return the name of the sensor."""
        return self._name

    @property
    def unit_of_measurement(self):
        """Return the unit of measurement of this entity, if any."""
        return SENSOR_TYPES[self._sensor_type][1]

    @property
    def state(self):
        """Return the state of the sensor."""
        return self._state

    @property
    def device_state_attributes(self):
        """Return the state attributes."""
        attrs = {}
        attrs[ATTR_ATTRIBUTION] = ATTRIBUTION

        if self._build and self._state is not None:
            if self._user and self._sensor_type == "state":
                attrs["Owner Name"] = self._user.name
                attrs["Owner Email"] = self._user.email
            else:
                attrs["Committer Name"] = self._build.commit.committer_name
                attrs["Committer Email"] = self._build.commit.committer_email
                attrs["Commit Branch"] = self._build.commit.branch
                attrs["Committed Date"] = self._build.commit.committed_at
                attrs["Commit SHA"] = self._build.commit.sha

        return attrs

    @property
    def icon(self):
        """Return the icon to use in the frontend, if any."""
        return SENSOR_TYPES[self._sensor_type][2]

    def update(self):
        """Get the latest data and updates the states."""
        _LOGGER.debug("Updating sensor %s", self._name)

        repo = self._data.repo(self._repo_name)
        self._build = self._data.build(repo.last_build_id)

        if self._build:
            if self._sensor_type == "state":
                branch_stats = self._data.branch(self._branch, self._repo_name)
                self._state = branch_stats.state

            else:
                param = self._sensor_type.replace("last_build_", "")
                self._state = getattr(self._build, param)
