278 lines
7.9 KiB
Elixir
278 lines
7.9 KiB
Elixir
defmodule Mobilizon.Service.GlobalSearch.SearchMobilizon do
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@moduledoc """
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[Search Mobilizon](https://search.joinmobilizon.org) backend.
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"""
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alias Mobilizon.Actors.Actor
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alias Mobilizon.Addresses.Address
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alias Mobilizon.Events.{Categories, Tag}
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alias Mobilizon.Service.GlobalSearch.{EventResult, GroupResult, Provider}
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alias Mobilizon.Service.HTTP.GenericJSONClient
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alias Mobilizon.Storage.Page
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require Logger
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import Plug.Conn.Query, only: [encode: 1]
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@search_events_api "/api/v1/search/events"
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@search_groups_api "/api/v1/search/groups"
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@sort_by_options %{
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match_desc: "-match",
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start_time_desc: "-startTime",
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created_at_desc: "-createdAt",
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created_at_asc: "createdAt",
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participant_count_desc: "-participantCount",
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member_count_desc: "-memberCount"
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}
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@behaviour Provider
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@impl Provider
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@doc """
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Mobilizon Search implementation for `c:Mobilizon.Service.GlobalSearch.Provider.search_events/3`.
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"""
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@spec search_events(keyword()) :: Page.t(EventResult.t())
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def search_events(options \\ []) do
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Logger.debug("Search events options, #{inspect(Keyword.keys(options))}")
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options =
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options
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|> Keyword.merge(
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search: options[:term],
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startDateMin: to_date(options[:begins_on]),
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startDateMax: to_date(options[:ends_on]),
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categoryOneOf: options[:category_one_of],
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languageOneOf: options[:language_one_of],
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statusOneOf:
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Enum.map(options[:status_one_of] || [], fn status ->
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status |> Atom.to_string() |> String.upcase()
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end),
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distance: if(options[:radius], do: "#{options[:radius]}_km", else: nil),
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count: options[:limit],
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start: (Keyword.get(options, :page, 1) - 1) * Keyword.get(options, :limit, 16),
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latlon: to_lat_lon(options[:location]),
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bbox: options[:bbox],
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sortBy: Map.get(@sort_by_options, options[:sort_by]),
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boostLanguages: options[:boost_languages]
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)
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|> Keyword.take([
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:search,
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:startDateMin,
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:startDateMax,
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:boostLanguages,
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:categoryOneOf,
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:languageOneOf,
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:latlon,
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:distance,
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:sort,
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:statusOneOf,
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:bbox,
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:start,
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:count,
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:sortBy
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])
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|> Keyword.reject(fn {_key, val} -> is_nil(val) or val == "" end)
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events_url = "#{search_endpoint()}#{@search_events_api}?#{encode(options)}"
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Logger.debug("Calling global search engine url #{events_url}")
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client = GenericJSONClient.client()
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case GenericJSONClient.get(client, events_url) do
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{:ok, %{status: 200, body: body}} ->
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%Page{total: body["total"], elements: Enum.map(body["data"], &build_event/1)}
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_ ->
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nil
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end
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end
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@impl Provider
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@doc """
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Mobilizon Search implementation for `c:Mobilizon.Service.GlobalSearch.Provider.search_groups/3`.
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"""
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@spec search_groups(keyword()) :: Page.t(GroupResult.t())
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def search_groups(options \\ []) do
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options =
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options
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|> Keyword.merge(
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search: options[:term],
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languageOneOf: options[:language_one_of],
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boostLanguages: options[:boost_languages],
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distance: if(options[:radius], do: "#{options[:radius]}_km", else: nil),
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count: options[:limit],
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start: (options[:page] - 1) * options[:limit],
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latlon: to_lat_lon(options[:location]),
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bbox: options[:bbox],
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sortBy: Map.get(@sort_by_options, options[:sort_by])
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)
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|> Keyword.take([
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:search,
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:languageOneOf,
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:boostLanguages,
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:latlon,
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:distance,
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:sort,
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:start,
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:count,
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:bbox,
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:sortBy
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])
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|> Keyword.reject(fn {_key, val} -> is_nil(val) or val == "" end)
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groups_url = "#{search_endpoint()}#{@search_groups_api}?#{encode(options)}"
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Logger.debug("Calling global search engine url #{groups_url}")
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client = GenericJSONClient.client()
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case GenericJSONClient.get(client, groups_url) do
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{:ok, %{status: 200, body: body}} ->
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%Page{total: body["total"], elements: Enum.map(body["data"], &build_group/1)}
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_ ->
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nil
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end
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end
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@impl Provider
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@doc """
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Returns the CSP configuration for this search provider to work
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"""
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def csp do
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:mobilizon
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|> Application.get_env(__MODULE__, [])
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|> Keyword.get(:csp_policy, [])
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end
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defp build_event(data) do
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picture =
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if data["banner"] do
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%{url: data["banner"], id: data["banner"]}
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else
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nil
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end
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organizer_actor_avatar =
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if data["creator"]["avatar"] do
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%{url: data["creator"]["avatar"], id: data["creator"]["avatar"]}
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else
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nil
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end
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address =
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if data["location"] do
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%Address{
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id: data["location"]["id"],
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country: data["location"]["address"]["addressCountry"],
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locality: data["location"]["address"]["addressLocality"],
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region: data["location"]["address"]["addressRegion"],
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postal_code: data["location"]["address"]["postalCode"],
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street: data["location"]["address"]["streetAddress"],
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url: data["location"]["id"],
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description: data["location"]["name"],
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geom: %Geo.Point{
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coordinates:
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{data["location"]["location"]["lon"], data["location"]["location"]["lat"]},
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srid: 4326
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}
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}
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else
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nil
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end
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%EventResult{
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id: data["id"],
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uuid: data["uuid"],
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title: data["name"],
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begins_on: parse_date(data["startTime"]),
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ends_on: parse_date(data["endTime"]),
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url: data["url"],
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picture: picture,
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category:
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data["category"]
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|> Categories.get_category()
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|> String.downcase()
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|> String.to_existing_atom(),
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organizer_actor: %Actor{
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id: data["creator"]["id"],
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name: data["creator"]["displayName"],
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preferred_username: data["creator"]["name"],
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avatar: organizer_actor_avatar
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},
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physical_address: address,
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participant_stats: %{participant: data["participantCount"]},
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tags:
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Enum.map(data["tags"], fn tag ->
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tag = String.trim_leading(tag, "#")
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%Tag{id: tag, slug: tag, title: tag}
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end)
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}
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end
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defp build_group(data) do
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avatar =
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if data["avatar"] do
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%{url: data["avatar"], id: data["avatar"]}
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else
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nil
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end
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address =
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if data["location"] do
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%Address{
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id: data["location"]["id"],
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country: data["location"]["address"]["addressCountry"],
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locality: data["location"]["address"]["addressLocality"],
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region: data["location"]["address"]["addressRegion"],
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postal_code: data["location"]["address"]["postalCode"],
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street: data["location"]["address"]["streetAddress"],
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url: data["location"]["id"],
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description: data["location"]["name"],
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geom: %Geo.Point{
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coordinates:
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{data["location"]["location"]["lon"], data["location"]["location"]["lat"]},
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srid: 4326
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}
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}
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else
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nil
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end
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%GroupResult{
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id: data["id"],
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name: data["displayName"],
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preferred_username: data["name"],
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domain: data["host"],
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avatar: avatar,
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summary: data["description"],
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url: data["url"],
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members_count: data["memberCount"],
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type: :Group,
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physical_address: address
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}
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end
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defp search_endpoint do
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Application.get_env(:mobilizon, __MODULE__) |> get_in([:endpoint]) ||
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"https://search.joinmobilizon.org"
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end
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defp parse_date(nil), do: nil
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defp parse_date(date_string) do
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case DateTime.from_iso8601(date_string) do
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{:ok, date, _} -> date
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{:error, _} -> nil
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end
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end
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defp to_date(nil), do: nil
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defp to_date(date), do: DateTime.to_iso8601(date)
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defp to_lat_lon(nil), do: nil
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defp to_lat_lon(location) do
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{lon, lat} = Geohax.decode(location)
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"#{lat}:#{lon}"
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end
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end
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