import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import web_server_base
from esphome.components.web_server_base import CONF_WEB_SERVER_BASE_ID
from esphome.const import (
    CONF_CSS_INCLUDE, CONF_CSS_URL, CONF_ID, CONF_JS_INCLUDE, CONF_JS_URL, CONF_PORT,
    CONF_AUTH, CONF_USERNAME, CONF_PASSWORD, CONF_PROMETHEUS)
from esphome.core import coroutine_with_priority

AUTO_LOAD = ['json', 'web_server_base']

web_server_ns = cg.esphome_ns.namespace('web_server')
WebServer = web_server_ns.class_('WebServer', cg.Component, cg.Controller)

CONFIG_SCHEMA = cv.Schema({
    cv.GenerateID(): cv.declare_id(WebServer),
    cv.Optional(CONF_PORT, default=80): cv.port,
    cv.Optional(CONF_CSS_URL, default="https://esphome.io/_static/webserver-v1.min.css"): cv.string,
    cv.Optional(CONF_CSS_INCLUDE): cv.file_,
    cv.Optional(CONF_JS_URL, default="https://esphome.io/_static/webserver-v1.min.js"): cv.string,
    cv.Optional(CONF_JS_INCLUDE): cv.file_,
    cv.Optional(CONF_PROMETHEUS, default=False): cv.boolean,
    cv.Optional(CONF_AUTH): cv.Schema({
        cv.Required(CONF_USERNAME): cv.string_strict,
        cv.Required(CONF_PASSWORD): cv.string_strict,
    }),

    cv.GenerateID(CONF_WEB_SERVER_BASE_ID): cv.use_id(web_server_base.WebServerBase),
}).extend(cv.COMPONENT_SCHEMA)


@coroutine_with_priority(40.0)
def to_code(config):
    paren = yield cg.get_variable(config[CONF_WEB_SERVER_BASE_ID])

    var = cg.new_Pvariable(config[CONF_ID], paren)
    yield cg.register_component(var, config)

    cg.add(paren.set_port(config[CONF_PORT]))
    cg.add(var.set_css_url(config[CONF_CSS_URL]))
    cg.add(var.set_js_url(config[CONF_JS_URL]))
    if CONF_AUTH in config:
        cg.add(var.set_username(config[CONF_AUTH][CONF_USERNAME]))
        cg.add(var.set_password(config[CONF_AUTH][CONF_PASSWORD]))
    if CONF_CSS_INCLUDE in config:
        cg.add_define('WEBSERVER_CSS_INCLUDE')
        with open(config[CONF_CSS_INCLUDE], "r") as myfile:
            cg.add(var.set_css_include(myfile.read()))
    if CONF_JS_INCLUDE in config:
        cg.add_define('WEBSERVER_JS_INCLUDE')
        with open(config[CONF_JS_INCLUDE], "r") as myfile:
            cg.add(var.set_js_include(myfile.read()))
    if config[CONF_PROMETHEUS]:
        cg.add_define('WEBSERVER_PROMETHEUS')