Build new nix {module,package,flake}. Adapt to new config variables

Co-authored-by: h7x4 <h7x4@nani.wtf>

nix/php-generator.nix

@@ -0,0 +1,62 @@
+{ pkgs, lib }:
+
+with lib;
+
+{ }: let
+  valueToString = val:
+    if val == null then
+      "null"
+    else if isString val then
+      builtins.toJSON val
+    else if isBool val then
+      boolToString val
+    else if isInt val || isFloat val then
+      toString val
+    else if isList val then
+      "array(${concatMapStringsSep ", " valueToString val})"
+    else if isAttrs val && val ? value && (val._type or "") == "raw" then
+      val.value
+    else if isAttrs val then
+      throw "Found unexpected attrs, that were not created by mkRaw. Have you put attrs in an array?\n${val}"
+    else throw "unsupported :')";
+in {
+  inherit (pkgs.formats.json { }) type;
+
+  generate = name: value: let
+    flattenStructuredSettings = attrs: let
+      partitionAttrs = pred: attrs: lib.pipe attrs [
+        attrsToList
+        (partition ({ name, value }: pred name value))
+        (mapAttrs (_: listToAttrs))
+      ];
+
+      partitionedAttrs = partitionAttrs (_: v: isAttrs v && !(v ? value && (v._type or "") == "raw")) attrs;
+
+      flattenedAttrs = lib.pipe partitionedAttrs.right [
+        (mapAttrs (n1: mapAttrs' (n2: v2: nameValuePair "${n1}_${n2}" v2)))
+        attrValues
+        (map flattenStructuredSettings)
+        (foldl recursiveUpdate { })
+      ];
+    in recursiveUpdate flattenedAttrs partitionedAttrs.wrong;
+
+    content = lib.pipe value [
+      flattenStructuredSettings
+      (mapAttrs (_: valueToString))
+      (mapAttrsToList (n: v: ''''$${n} = ${v};''))
+      (concatStringsSep "\n")
+      (content: "<?php\n${content}\n?>")
+    ];
+  in pkgs.writeText name content;
+
+  lib = {
+    inherit valueToString;
+
+    mkRaw = value: {
+      inherit value;
+      _type = "raw";
+    };
+
+    types.raw = lib.types.attrs;
+  };
+}