use yew::prelude::*;
use vcard::properties;
use vcard::parameters;
use vcard::values::{self, text};
use std::collections::HashSet;

use crate::util;

#[derive(Clone)]
pub struct Address {
    pub post_office_box: String,
    pub extension: String,
    pub street: String,
    pub locality: String,
    pub region: String,
    pub code: String,
    pub country: String,
    address_type: AddressType,
}

impl Address {
    pub fn new_with_type(address_type: AddressType) -> Self {
        Self {
            post_office_box: String::new(),
            extension: String::new(),
            street: String::new(),
            locality: String::new(),
            region: String::new(),
            code: String::new(),
            country: String::new(),
            address_type
        }
    }
    pub fn to_vcard_value(&self) -> properties::Address {
        let address_value = values::address_value::AddressValue::from_components(
            match self.post_office_box.is_empty() {
                true => None,
                false => Some(text::Component::from_str(&self.post_office_box).unwrap()),
            },
            match self.extension.is_empty() {
                true => None,
                false => Some(text::Component::from_str(&self.extension).unwrap()),
            },
            match self.street.is_empty() {
                true => None,
                false => Some(text::Component::from_str(&self.street).unwrap()),
            },
            match self.locality.is_empty() {
                true => None,
                false => Some(text::Component::from_str(&self.locality).unwrap()),
            },
            match self.region.is_empty() {
                true => None,
                false => Some(text::Component::from_str(&self.region).unwrap()),
            },
            match self.code.is_empty() {
                true => None,
                false => Some(text::Component::from_str(&self.code).unwrap()),
            },
            match self.country.is_empty() {
                true => None,
                false => Some(text::Component::from_str(&self.country).unwrap()),
            },
        );

        let mut address = properties::Address::from_address_value(address_value);

        let type_values = {
            let mut type_values = HashSet::new();

            type_values.insert(
                match self.address_type {
                    AddressType::Home => values::type_value::TypeValue::Home,
                    AddressType::Work => values::type_value::TypeValue::Work,
                }
            );

            vcard::Set::from_hash_set(type_values).unwrap()
        };

        address.typ = Some(parameters::typ::Type::from_type_values(type_values));

        address
    }
}

#[derive(Clone, Copy, PartialEq)]
pub enum AddressType {
    Home,
    Work,
}

impl AddressType {
    pub fn to_str(&self) -> &str {
        match self {
            AddressType::Home => "Home",
            AddressType::Work => "Work",
        }
    }
}

pub struct AddressView {
    link: ComponentLink<Self>,
    value: Address,
    oninput: Callback<Address>,
}

pub enum Msg {
    UpdatePostOfficeBox(String),
    UpdateExtension(String),
    UpdateStreet(String),
    UpdateLocality(String),
    UpdateRegion(String),
    UpdateCode(String),
    UpdateCountry(String),
}

#[derive(Clone, PartialEq, Properties)]
pub struct Props {
    pub oninput: Callback<Address>,
    pub address_type: AddressType,
    //pub errors: Vec<String>,
}

impl Component for AddressView {
    type Message = Msg;
    type Properties = Props;
    fn create(props: <Self as yew::Component>::Properties, link: yew::html::Scope<Self>) -> Self {
        Self {
            link,
            value: Address::new_with_type(props.address_type),
            oninput: props.oninput,
        }
    }
    fn update(&mut self, msg: <Self as yew::Component>::Message) -> bool {
        match msg {
            Msg::UpdatePostOfficeBox(b) => self.value.post_office_box = b,
            Msg::UpdateExtension(e) => self.value.extension = e,
            Msg::UpdateStreet(s) => self.value.street = s,
            Msg::UpdateLocality(l) => self.value.locality = l,
            Msg::UpdateRegion(r) => self.value.region = r,
            Msg::UpdateCode(p) => self.value.code = p,
            Msg::UpdateCountry(c) => self.value.country = c,
        };
        self.oninput.emit(self.value.clone());
        true
    }
    fn change(&mut self, props: <Self as yew::Component>::Properties) -> bool { 
        self.oninput = props.oninput;
        self.value.address_type = props.address_type;
        true
    }
    fn view(&self) -> yew::virtual_dom::VNode {
        html!{
            <div class="box">
                <h3 class="subtitle">{ format!("{} Address", self.value.address_type.to_str()) }</h3>

                <div class="columns is-mobile is-multiline">

                    { util::text_field_input(
                        "Post Office Box", 
                        "post_office_box", 
                        None, 
                        self.link.callback(|e: InputData| Msg::UpdatePostOfficeBox(e.value))
                    ) }

                    { util::text_field_input(
                        "Extension", 
                        "extension", 
                        None, 
                        self.link.callback(|e: InputData| Msg::UpdateExtension(e.value))
                    ) }

                    { util::text_field_input(
                        "Street", 
                        "street", 
                        None, 
                        self.link.callback(|e: InputData| Msg::UpdateStreet(e.value))
                    ) }

                    { util::text_field_input(
                        "Locality", 
                        "locality", 
                        None, 
                        self.link.callback(|e: InputData| Msg::UpdateLocality(e.value))
                    ) }

                    { util::text_field_input(
                        "Region", 
                        "region", 
                        None, 
                        self.link.callback(|e: InputData| Msg::UpdateRegion(e.value))
                    ) }

                    { util::text_field_input(
                        "Postal Code", 
                        "code", 
                        None, 
                        self.link.callback(|e: InputData| Msg::UpdateCode(e.value))
                    ) }

                    { util::text_field_input(
                        "Country", 
                        "country", 
                        None, 
                        self.link.callback(|e: InputData| Msg::UpdateCountry(e.value))
                    ) }

                </div>
            </div>
        }
    }
}