import engines as a config instead of a list

2 files changed, 109 insertions, 84 deletions

diff --git a/config/services/web/searx/searx/default.nix b/config/services/web/searx/searx/default.nix
index 72155c2..cf50343 100644
--- a/config/services/web/searx/searx/default.nix
+++ b/config/services/web/searx/searx/default.nix
@@ -6,6 +6,9 @@ let
     filtron = config.services.filtron;
   };
 in {
+
+  imports = [ ./engines.nix ];
+
   services.searx = {
     enable = true;
 
@@ -47,7 +50,6 @@ in {
         "Tracker URL remover"
         "Vim-like hotkeys"
       ];
-      engines = import ./engines.nix;
     };
   };
 }
diff --git a/config/services/web/searx/searx/engines.nix b/config/services/web/searx/searx/engines.nix
index 70a4cb2..3eefc5d 100644
--- a/config/services/web/searx/searx/engines.nix
+++ b/config/services/web/searx/searx/engines.nix
@@ -1,3 +1,6 @@
+{ lib, ... }:
+
+with lib;
 let
   overrideDisabled = value: names:
     map (name: {
@@ -6,87 +9,107 @@ let
     }) names;
   enable = overrideDisabled false;
   disable = overrideDisabled true;
-in (disable [
-  # general
-  "bing"
-  "currency"
-  "dictzone"
-  # files
-  "btdigg"
-  "torrentz"
-  # images
-  "bing images"
-  "ccengine"
-  "library of congress"
-  "qwant images"
-  # it
-  "hoogle"
-  # map
-  "photon"
-]) ++ (enable [
-  # General
-  "duckduckgo"
-]) ++ [
-  { # AlternativeTo
-    name = "alternativeto";
-    engine = "xpath";
-    paging = true;
+
+  makeSearchUrl = { baseUrl, queryKeyword ? "query", pageKeyword ? null
+    , preventRedirect ? false }:
+    baseUrl + "?${queryKeyword}={query}"
     # an invisible whitespace is added at the end of the query to prevent redirections
-    search_url = "https://alternativeto.net/browse/search?q={query}%E2%80%8E&p={pageno}";
-    results_xpath = ''
-      //article[@class="row app-list-item"]/div[@class="col-xs-10 col-sm-10 col-md-11 col-lg-offset-1 col-lg-11"]'';
-    url_xpath = "./h3/a/@href";
-    title_xpath = "./h3/a";
-    content_xpath = ''./div[@class="itemDesc read-more-box"]/p[@class="text"]'';
-    shortcut = "a2";
-    categories = "it";
-    disabled = true;
-    about = {
-      website = "https://alternativeto.net/";
-      wikidata_id = "Q3613175";
-      official_api_documentation = "";
-      use_official_api = false;
-      require_api_key = false;
-      results = "HTML";
-    };
-  }
-  { # Emojipedia
-    name = "emojipedia";
-    engine = "xpath";
-    # an invisible whitespace is added at the end of the query to prevent redirections
-    search_url = "https://emojipedia.org/search/?q={query}%E2%80%8E";
-    url_xpath = ''//ol[@class="search-results"]/li/h2/a/@href'';
-    title_xpath = ''//ol[@class="search-results"]/li/h2/a'';
-    content_xpath = ''//ol[@class="search-results"]/li/p'';
-    shortcut = "emoji";
-    disabled = true;
-    about = {
-      website = "https://emojipedia.org/";
-      wikidata_id = "Q22908129";
-      official_api_documentation = "";
-      use_official_api = false;
-      require_api_key = false;
-      results = "HTML";
-    };
-  }
-  {
-    name = "nlab";
-    engine = "xpath";
-    search_url = "https://ncatlab.org/nlab/search?query={query}";
-    url_xpath = "//li/a/@href";
-    title_xpath = "//li/a";
-    content_xpath = "//li/a";
-    shortcut = "nlab";
-    timeout = 10.0;
-    categories = "science";
-    disabled = true;
-    about = {
-      website = "https://ncatlab.org/";
-      wikidata_id = "Q6954693";
-      official_api_documentation = "";
-      use_official_api = false;
-      require_api_key = false;
-      results = "HTML";
-    };
-  }
-]
+    + (optionalString preventRedirect "%E2%80%8E")
+    + (optionalString (pageKeyword != null) "&${page_keyword}={page_no}");
+in {
+  services.searx.settings.engine = (disable [
+    # general
+    "bing"
+    "currency"
+    "dictzone"
+    # files
+    "btdigg"
+    "torrentz"
+    # images
+    "bing images"
+    "ccengine"
+    "library of congress"
+    "qwant images"
+    # it
+    "hoogle"
+    # map
+    "photon"
+  ]) ++ (enable [
+    # general
+    "duckduckgo"
+  ]) ++ [
+    { # AlternativeTo
+      name = "alternativeto";
+      engine = "xpath";
+      paging = true;
+      search_url = makeSearchUrl {
+        baseUrl = "https://alternativeto.net/browse/search";
+        queryKeyword = "q";
+        pageKeyword = "p";
+        preventRedirect = true;
+      };
+      results_xpath = ''
+        //article[@class="row app-list-item"]/div[@class="col-xs-10 col-sm-10 col-md-11 col-lg-offset-1 col-lg-11"]'';
+      url_xpath = "./h3/a/@href";
+      title_xpath = "./h3/a";
+      content_xpath =
+        ''./div[@class="itemDesc read-more-box"]/p[@class="text"]'';
+      shortcut = "a2";
+      categories = "it";
+      disabled = true;
+      about = {
+        website = "https://alternativeto.net/";
+        wikidata_id = "Q3613175";
+        official_api_documentation = "";
+        use_official_api = false;
+        require_api_key = false;
+        results = "HTML";
+      };
+    }
+    { # Emojipedia
+      name = "emojipedia";
+      engine = "xpath";
+      search_url = makeSearchUrl {
+        baseUrl = "https://emojipedia.org/search/";
+        queryKeyword = "q";
+        preventRedirect = true;
+      };
+      results_xpath = ''//ol[@class="search-results"]/li'';
+      url_xpath = "./h2/a/@href";
+      title_xpath = "./h2/a";
+      content_xpath = "./p";
+      shortcut = "emoji";
+      disabled = true;
+      about = {
+        website = "https://emojipedia.org/";
+        wikidata_id = "Q22908129";
+        official_api_documentation = "";
+        use_official_api = false;
+        require_api_key = false;
+        results = "HTML";
+      };
+    }
+    {
+      name = "nlab";
+      engine = "xpath";
+      search_url =
+        makeSearchUrl { baseUrl = "https://ncatlab.org/nlab/search"; };
+      results_xpath = "//li/a";
+      url_xpath = "./@href";
+      title_xpath = ".";
+      content_xpath = ".";
+      shortcut = "nlab";
+      timeout = 10.0;
+      categories = "science";
+      disabled = true;
+      about = {
+        website = "https://ncatlab.org/";
+        wikidata_id = "Q6954693";
+        official_api_documentation = "";
+        use_official_api = false;
+        require_api_key = false;
+        results = "HTML";
+      };
+    }
+  ];
+}