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use std::io::Write;
use anyhow::Result;
use clipboard::{ClipboardContext, ClipboardProvider};
use abstio::MapName;
use widgetry::tools::PopupMsg;
use widgetry::{
EventCtx, GfxCtx, Line, Outcome, Panel, State, TextBox, TextExt, Toggle, Transition, Widget,
};
use crate::load::MapLoader;
use crate::tools::{find_exe, open_browser};
use crate::AppLike;
pub struct ImportCity<A: AppLike> {
panel: Panel,
on_load: Option<Box<dyn FnOnce(&mut EventCtx, &mut A) -> Transition<A>>>,
}
impl<A: AppLike + 'static> ImportCity<A> {
pub fn new_state(
ctx: &mut EventCtx,
on_load: Box<dyn FnOnce(&mut EventCtx, &mut A) -> Transition<A>>,
) -> Box<dyn State<A>> {
let panel = Panel::new_builder(Widget::col(vec![
Widget::row(vec![
Line("Import a new city").small_heading().into_widget(ctx),
ctx.style().btn_close_widget(ctx),
]),
Widget::col(vec![
Widget::row(vec![
"Step 1)".text_widget(ctx).centered_vert(),
ctx.style()
.btn_plain
.btn()
.label_underlined_text("Go to geojson.io")
.build_def(ctx),
]),
Widget::row(vec![
"Step 2)".text_widget(ctx).margin_right(16),
"Draw a polygon boundary where you want to import"
.text_widget(ctx)
.margin_below(16),
])
.margin_below(16),
Widget::row(vec![
"Step 3)".text_widget(ctx).margin_right(16),
"Copy the JSON text on the right into your clipboard".text_widget(ctx),
])
.margin_below(16),
Toggle::choice(
ctx,
"left handed driving",
"drive on the left",
"right",
None,
false,
),
Widget::row(vec![
"Name the map:".text_widget(ctx).centered_vert(),
TextBox::widget(ctx, "new_map_name", generate_new_map_name(), true, 20),
]),
ctx.style()
.btn_solid_primary
.text("Import the area from your clipboard")
.build_def(ctx)
.margin_below(32),
ctx.style()
.btn_plain
.btn()
.label_underlined_text("Alternate instructions")
.build_def(ctx),
Widget::col(vec![
Line("Advanced settings").secondary().into_widget(ctx),
Widget::row(vec![
"Import data from:".text_widget(ctx).centered_vert(),
Toggle::choice(
ctx,
"source",
"GeoFabrik",
"Overpass (faster)",
None,
false,
),
]),
Toggle::switch(ctx, "Filter crosswalks", None, false),
Toggle::switch(ctx, "Generate travel demand model (UK only)", None, false),
])
.section(ctx),
])
.section(ctx),
]))
.build(ctx);
Box::new(ImportCity {
panel,
on_load: Some(on_load),
})
}
}
impl<A: AppLike + 'static> State<A> for ImportCity<A> {
fn event(&mut self, ctx: &mut EventCtx, _: &mut A) -> Transition<A> {
match self.panel.event(ctx) {
Outcome::Clicked(x) => match x.as_ref() {
"close" => Transition::Pop,
"Alternate instructions" => {
open_browser("https://a-b-street.github.io/docs/user/new_city.html");
Transition::Keep
}
"Go to geojson.io" => {
open_browser("http://geojson.io");
Transition::Keep
}
"Import the area from your clipboard" => {
let name = sanitize_name(self.panel.text_box("new_map_name"));
let mut args = vec![
find_exe("cli"),
"one-step-import".to_string(),
"--geojson-path=boundary.geojson".to_string(),
format!("--map-name={}", name),
];
if self.panel.is_checked("left handed driving") {
args.push("--drive-on-left".to_string());
}
if self.panel.is_checked("source") {
args.push("--use-geofabrik".to_string());
}
if self.panel.is_checked("Filter crosswalks") {
args.push("--filter-crosswalks".to_string());
}
if self
.panel
.is_checked("Generate travel demand model (UK only)")
{
args.push("--create-uk-travel-demand-model".to_string());
}
match grab_geojson_from_clipboard() {
Ok(()) => Transition::Push(crate::tools::RunCommand::new_state(
ctx,
true,
args,
Box::new(|_, _, success, _| {
if success {
abstio::delete_file("boundary.geojson");
Transition::ConsumeState(Box::new(move |state, ctx, app| {
let mut state =
state.downcast::<ImportCity<A>>().ok().unwrap();
let on_load = state.on_load.take().unwrap();
let map_name = MapName::new("zz", "oneshot", &name);
vec![MapLoader::new_state(ctx, app, map_name, on_load)]
}))
} else {
Transition::Keep
}
}),
)),
Err(err) => Transition::Push(PopupMsg::new_state(
ctx,
"Error",
vec![
"Couldn't get GeoJSON from your clipboard".to_string(),
err.to_string(),
],
)),
}
}
_ => unreachable!(),
},
_ => Transition::Keep,
}
}
fn draw(&self, g: &mut GfxCtx, _: &A) {
self.panel.draw(g);
}
}
fn grab_geojson_from_clipboard() -> Result<()> {
let mut ctx: ClipboardContext = match ClipboardProvider::new() {
Ok(ctx) => ctx,
Err(err) => bail!("{}", err),
};
let contents = match ctx.get_contents() {
Ok(contents) => contents,
Err(err) => bail!("{}", err),
};
if contents.parse::<geojson::GeoJson>().is_err() {
bail!(
"Your clipboard doesn't seem to have GeoJSON. Got: {}",
contents
);
}
let mut f = fs_err::File::create("boundary.geojson")?;
write!(f, "{}", contents)?;
Ok(())
}
fn sanitize_name(x: String) -> String {
x.replace(" ", "_")
}
fn generate_new_map_name() -> String {
let mut i = 0;
loop {
let name = format!("imported_{}", i);
if !abstio::file_exists(MapName::new("zz", "oneshot", &name).path()) {
return name;
}
i += 1;
}
}