geolite 0.0.1

open source geocode solution
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use super::enrich_house_numbers;
use crate::database::admin_levels::{admin_levels as admin_levels_row, batch_upsert};
use crate::database::house_numbers::{batch_insert, house_numbers as house_numbers_row};
use crate::query::{admin_level, query_match, query_match_attributes};
use geo::{Coord, Geometry, LineString, Point};
use rusqlite::Connection;

fn setup() -> (Connection, i64) {
  let conn = crate::database::open_write(":memory:");
  let ls = LineString(vec![
    Coord { x: 0.0, y: 0.0 },
    Coord { x: 0.0001, y: 0.0001 },
  ]);
  let street = admin_levels_row {
    relation_id: None,
    way_id: Some(1),
    admin_level: 12,
    wkb: Geometry::LineString(ls).into(),
    name: "rua x".to_string(),
    country_iso_code: None,
    post_code: None,
  };
  batch_upsert(&conn, &[street]);
  // way_id 1 packs to admin id 2; house_numbers.admin_level_id references it.
  (conn, 2)
}

fn insert_hn(conn: &Connection, admin_level_id: i64, node_id: u64, number: &str, lon: f64, lat: f64) {
  let row = house_numbers_row {
    node_id,
    admin_level_id,
    number: number.to_string(),
    wkb: Geometry::Point(Point::new(lon, lat)).into(),
    strategy: 0,
  };
  batch_insert(conn, &[row]);
}

fn al(level: u8, name: &str) -> admin_level {
  admin_level {
    level,
    name: name.to_string(),
    osm_relation_id: None,
    osm_way_id: None,
    wkt: None,
  }
}

fn make_match(admin_level_id: i64, admin_levels: Vec<admin_level>, friendly_name: &str) -> query_match {
  query_match {
    admin_levels,
    latitude: 0.0,
    longitude: 0.0,
    coordinates_distance_in_meters: Some(0),
    similarity: None,
    score: None,
    friendly_name: friendly_name.to_string(),
    attributes: query_match_attributes {
      country_iso_3166_1_alpha_2_code: None,
      post_code: None,
    },
    house_number: None,
    id: 2,
    admin_level_id: Some(admin_level_id),
  }
}

fn level_30_name(m: &query_match) -> Option<&str> {
  m.admin_levels
    .iter()
    .find(|a| a.level == 30)
    .map(|a| a.name.as_str())
}

#[test]
fn _00_no_house_numbers_leaves_matches_unchanged() {
  let (conn, street_id) = setup();
  let mut matches = vec![make_match(street_id, vec![al(12, "rua x")], "rua x")];

  enrich_house_numbers(&conn, Point::new(0.0, 0.0), &mut matches, None);

  assert_eq!(matches[0].admin_levels.len(), 1);
  assert_eq!(level_30_name(&matches[0]), None);
  assert_eq!(matches[0].friendly_name, "rua x");
}

#[test]
fn _01_house_number_within_50m_updates_admin_levels_and_friendly_name() {
  let (conn, street_id) = setup();
  insert_hn(&conn, street_id, 1, "123", 0.0, 0.0001); // ~11 m
  let mut matches = vec![make_match(street_id, vec![al(12, "rua x")], "rua x")];

  enrich_house_numbers(&conn, Point::new(0.0, 0.0), &mut matches, None);

  assert_eq!(level_30_name(&matches[0]), Some("123"));
  assert_eq!(matches[0].friendly_name, "rua x, 123");
}

#[test]
fn _02_house_number_beyond_50m_is_ignored() {
  let (conn, street_id) = setup();
  insert_hn(&conn, street_id, 1, "123", 0.0, 0.001); // ~111 m
  let mut matches = vec![make_match(street_id, vec![al(12, "rua x")], "rua x")];

  enrich_house_numbers(&conn, Point::new(0.0, 0.0), &mut matches, None);

  assert_eq!(matches[0].admin_levels.len(), 1);
  assert_eq!(level_30_name(&matches[0]), None);
  assert_eq!(matches[0].friendly_name, "rua x");
}

#[test]
fn _03_multiple_house_numbers_picks_the_closest() {
  let (conn, street_id) = setup();
  insert_hn(&conn, street_id, 1, "100", 0.0, 0.0003); // ~33 m
  insert_hn(&conn, street_id, 2, "200", 0.0, 0.00005); // ~5.5 m
  let mut matches = vec![make_match(street_id, vec![al(12, "rua x")], "rua x")];

  enrich_house_numbers(&conn, Point::new(0.0, 0.0), &mut matches, None);

  assert_eq!(level_30_name(&matches[0]), Some("200"));
}

#[test]
fn _04_template_format_renders_over_enriched_admin_levels() {
  let (conn, street_id) = setup();
  insert_hn(&conn, street_id, 1, "123", 0.0, 0.0001); // ~11 m
  let mut matches = vec![make_match(street_id, vec![al(12, "rua x")], "rua x")];

  enrich_house_numbers(
    &conn,
    Point::new(0.0, 0.0),
    &mut matches,
    Some("{admin_level_12_name} {house_number}"),
  );

  // {house_number} resolves against the freshly pushed level-30 entry.
  assert_eq!(matches[0].friendly_name, "rua x 123");
}

#[test]
fn _05_no_format_applies_default_friendly_name_after_level_30_push() {
  let (conn, street_id) = setup();
  insert_hn(&conn, street_id, 1, "123", 0.0, 0.0001); // ~11 m
  let mut matches = vec![make_match(street_id, vec![al(12, "rua x"), al(2, "brasil")], "rua x")];

  enrich_house_numbers(&conn, Point::new(0.0, 0.0), &mut matches, None);

  // default ordering: street (12), then house number (30), then ancestors.
  assert_eq!(matches[0].friendly_name, "rua x, 123, brasil");
}