.drone.jsonnet

@@ -0,0 +1,110 @@
+local bun_image = "oven/bun:1";
+local node_image = "node:20";
+
+
+local install_step = {
+    name: "install",
+    image: bun_image,
+    commands: ["bun install --frozen-lockfile"],
+};
+
+local lint_step = {
+    name: "lint",
+    image: bun_image,
+    commands: ["bun lint:tsc"],
+};
+
+local build_step = {
+    name: "build",
+    image: bun_image,
+    commands: ["bun run build"],
+};
+
+local pack_step = {
+    name: "pack",
+    image: node_image,
+    commands: ["npm pack --dry-run"],
+};
+
+local publish_step = {
+    name: "publish",
+    image: node_image,
+
+    environment: {
+        NPM_TOKEN: { from_secret: "npm_token" }
+    },
+
+    commands: [
+        "npm set @thilawyn:registry https://git.jvalver.de/api/packages/thilawyn/npm/",
+        "npm config set -- //git.jvalver.de/api/packages/thilawyn/npm/:_authToken $NPM_TOKEN",
+        "npm publish",
+    ],
+};
+
+
+[
+    // Lint the whole project when not in master, not in a PR nor on a tag
+    {
+        kind: "pipeline",
+        type: "docker",
+        name: "lint",
+
+        trigger: {
+            ref: {
+                exclude: [
+                    "refs/heads/master",
+                    "refs/pull/**",
+                    "refs/tags/**",
+                ]
+            }
+        },
+
+        steps: [
+            install_step,
+            lint_step,
+        ],
+    },
+
+    // Build the package without publishing for pull requests
+    {
+        kind: "pipeline",
+        type: "docker",
+        name: "build",
+
+        trigger: {
+            ref: {
+                include: ["refs/pull/**"]
+            }
+        },
+
+        steps: [
+            install_step,
+            lint_step,
+            build_step,
+            pack_step,
+        ],
+    },
+
+    // Build and publish the package for master and tags
+    {
+        kind: "pipeline",
+        type: "docker",
+        name: "build-publish",
+
+        trigger: {
+            ref: {
+                include: [
+                    "refs/heads/master",
+                    "refs/tags/**",
+                ]
+            }
+        },
+
+        steps: [
+            install_step,
+            lint_step,
+            build_step,
+            publish_step,
+        ],
+    },
+]

.gitignore

@@ -129,4 +129,3 @@ dist
 .yarn/build-state.yml
 .yarn/install-state.gz
 .pnp.*
-

.npmrc

@@ -0,0 +1 @@
+@thilawyn:registry=https://git.jvalver.de/api/packages/thilawyn/npm/

README.md

@@ -1,3 +1,3 @@
-# schemable-classes
+# schemable-class
 
-Create TypeScript classes out of Zod schemas
+Create TypeScript classes out of Zod schemas

bunfig.toml

@@ -0,0 +1,2 @@
+[install.scopes]
+"@thilawyn" = "https://git.jvalver.de/api/packages/thilawyn/npm/"

package.json

@@ -0,0 +1,59 @@
+{
+  "name": "@thilawyn/schemable-class",
+  "version": "0.1.0",
+  "type": "module",
+  "publishConfig": {
+    "registry": "https://git.jvalver.de/api/packages/thilawyn/npm/"
+  },
+  "files": [
+    "./dist"
+  ],
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./dist/schemable.d.mts",
+        "default": "./dist/schemable.mjs"
+      },
+      "require": {
+        "types": "./dist/schemable.d.cts",
+        "default": "./dist/schemable.cjs"
+      }
+    },
+    "./jsonifiable": {
+      "import": {
+        "types": "./dist/jsonifiable.d.mts",
+        "default": "./dist/jsonifiable.mjs"
+      },
+      "require": {
+        "types": "./dist/jsonifiable.d.cts",
+        "default": "./dist/jsonifiable.cjs"
+      }
+    }
+  },
+  "scripts": {
+    "build": "rollup -c rollup.config.ts",
+    "lint:tsc": "tsc --noEmit",
+    "clean:cache": "rm -f tsconfig.tsbuildinfo",
+    "clean:dist": "rm -rf dist",
+    "clean:node": "rm -rf node_modules"
+  },
+  "dependencies": {
+    "decimal.js": "^10.4.3",
+    "effect": "^2.0.0-next.62",
+    "lodash-es": "^4.17.21",
+    "type-fest": "^4.9.0",
+    "zod": "^3.22.4"
+  },
+  "devDependencies": {
+    "@rollup/plugin-node-resolve": "^15.2.3",
+    "@types/lodash-es": "^4.17.12",
+    "bun-types": "latest",
+    "npm-check-updates": "^16.14.12",
+    "npm-sort": "^0.0.4",
+    "rollup": "^4.9.1",
+    "rollup-plugin-cleanup": "^3.2.1",
+    "rollup-plugin-ts": "^3.4.5",
+    "tsx": "^4.7.0",
+    "typescript": "^5.3.3"
+  }
+}

rollup.config.ts

@@ -0,0 +1,43 @@
+import { nodeResolve } from "@rollup/plugin-node-resolve"
+import { defineConfig } from "rollup"
+import cleanup from "rollup-plugin-cleanup"
+import ts from "rollup-plugin-ts"
+import pkg from "./package.json" assert { type: "json" }
+
+
+export const createBundleConfig = (
+    input:  string,
+    name:   keyof typeof pkg.exports,
+) =>
+    defineConfig({
+        input,
+
+        output: [
+            {
+                file:    pkg.exports[name].import.default,
+                format:  "esm",
+            },
+            {
+                file:    pkg.exports[name].require.default,
+                format:  "cjs",
+            },
+        ],
+
+        external: id => !/^[./]/.test(id),
+
+        plugins: [
+            nodeResolve(),
+            ts(),
+
+            cleanup({
+                comments: "jsdoc",
+                extensions: ["ts"],
+            }),
+        ],
+    })
+
+
+export default [
+    createBundleConfig("src/index.ts", "."),
+    createBundleConfig("src/jsonifiable/index.ts", "./jsonifiable"),
+]

src/SchemableClass.ts

@@ -0,0 +1,90 @@
+import { Class } from "type-fest"
+import { z } from "zod"
+
+
+/**
+ * Configuration for creating a schemable object with validation schemas.
+ * @template Values - The type representing the expected values.
+ * @template Input - The type representing the input values.
+ * @template SchemaT - The type representing the base validation schema.
+ * @template SchemaUnknownKeys - The type representing the unknown keys behavior in the base validation schema.
+ * @template SchemaCatchall - The type representing the catchall behavior in the base validation schema.
+ * @template SchemaWithDefaultValuesT - The type representing the validation schema with default values.
+ * @template SchemaWithDefaultValuesUnknownKeys - The type representing the unknown keys behavior in the validation schema with default values.
+ * @template SchemaWithDefaultValuesCatchall - The type representing the catchall behavior in the validation schema with default values.
+ */
+export type SchemableConfig<
+    Values                             extends {}                 = {},
+    Input                              extends {}                 = {},
+
+    SchemaT                            extends z.ZodRawShape      = z.ZodRawShape,
+    SchemaUnknownKeys                  extends z.UnknownKeysParam = z.UnknownKeysParam,
+    SchemaCatchall                     extends z.ZodTypeAny       = z.ZodTypeAny,
+
+    SchemaWithDefaultValuesT           extends z.ZodRawShape      = z.ZodRawShape,
+    SchemaWithDefaultValuesUnknownKeys extends z.UnknownKeysParam = z.UnknownKeysParam,
+    SchemaWithDefaultValuesCatchall    extends z.ZodTypeAny       = z.ZodTypeAny,
+> = {
+    readonly values: Values
+    readonly input: Input
+
+    readonly schema: z.ZodObject<
+        SchemaT,
+        SchemaUnknownKeys,
+        SchemaCatchall,
+        Values,
+        Values
+    >
+
+    readonly schemaWithDefaultValues: z.ZodObject<
+        SchemaWithDefaultValuesT,
+        SchemaWithDefaultValuesUnknownKeys,
+        SchemaWithDefaultValuesCatchall,
+        Values,
+        Input
+    >
+}
+
+
+/**
+ * Represents a class with validation schemas.
+ * @template $Config - The configuration type for the schemable object.
+ */
+export type SchemableClass<
+    $Config extends SchemableConfig
+> = (
+    Class<
+        SchemableObject<$Config>,
+        SchemableClassConstructorParams<$Config>
+    > & {
+        readonly $schemableConfig:         $Config
+        readonly schema:                   $Config["schema"]
+        readonly schemaWithDefaultValues:  $Config["schemaWithDefaultValues"]
+    }
+)
+
+/**
+ * Represents the constructor parameters for the schemable object class.
+ * @template $Config - The configuration type for the schemable object.
+ */
+export type SchemableClassConstructorParams<
+    $Config extends SchemableConfig
+> = (
+    Parameters<
+        (data: $Config["values"]) => void
+    >
+)
+
+/**
+ * Represents an object with validation schemas.
+ * @template $Config - The configuration type for the schemable object.
+ */
+export type SchemableObject<
+    $Config extends SchemableConfig
+> = (
+    {
+        readonly $schemableConfig:         $Config
+        readonly schema:                   $Config["schema"]
+        readonly schemaWithDefaultValues:  $Config["schemaWithDefaultValues"]
+    } & $Config["values"]
+)

src/index.ts

@@ -0,0 +1,3 @@
+export * from "./SchemableClass"
+export * from "./makeSchemableClass"
+export * from "./newSchemable"

src/jsonifiable/JsonifiableSchemableClass.ts

@@ -0,0 +1,66 @@
+import { Effect } from "effect"
+import { Class } from "type-fest"
+import { JsonifiableObject } from "type-fest/source/jsonifiable"
+import { z } from "zod"
+import { SchemableClassConstructorParams, SchemableConfig } from ".."
+
+
+export type JsonifiableSchemableConfig<
+    $SchemableConfig           extends SchemableConfig    = SchemableConfig,
+
+    JsonifiedValues            extends JsonifiableObject  = {},
+
+    JsonifySchemaT             extends z.ZodRawShape      = z.ZodRawShape,
+    JsonifySchemaUnknownKeys   extends z.UnknownKeysParam = z.UnknownKeysParam,
+    JsonifySchemaCatchall      extends z.ZodTypeAny       = z.ZodTypeAny,
+
+    DejsonifySchemaT           extends z.ZodRawShape      = z.ZodRawShape,
+    DejsonifySchemaUnknownKeys extends z.UnknownKeysParam = z.UnknownKeysParam,
+    DejsonifySchemaCatchall    extends z.ZodTypeAny       = z.ZodTypeAny,
+> = {
+    readonly $schemableConfig: $SchemableConfig
+
+    readonly jsonifiedValues: JsonifiedValues
+
+    readonly jsonifySchema: z.ZodObject<
+        JsonifySchemaT,
+        JsonifySchemaUnknownKeys,
+        JsonifySchemaCatchall,
+        JsonifiedValues,
+        $SchemableConfig["values"]
+    >
+
+    readonly dejsonifySchema: z.ZodObject<
+        DejsonifySchemaT,
+        DejsonifySchemaUnknownKeys,
+        DejsonifySchemaCatchall,
+        $SchemableConfig["values"],
+        JsonifiedValues
+    >
+}
+
+
+export type JsonifiableSchemableClass<
+    $Config extends JsonifiableSchemableConfig
+> = (
+    Class<
+        JsonifiableSchemableObject<$Config>,
+        SchemableClassConstructorParams<$Config["$schemableConfig"]>
+    > & {
+        readonly $jsonifiableSchemableConfig:  $Config
+        readonly jsonifySchema:                $Config["jsonifySchema"]
+        readonly dejsonifySchema:              $Config["dejsonifySchema"]
+    }
+)
+
+export type JsonifiableSchemableObject<
+    $Config extends JsonifiableSchemableConfig
+> = {
+    readonly $jsonifiableSchemableConfig:  $Config
+    readonly jsonifySchema:                $Config["jsonifySchema"]
+    readonly dejsonifySchema:              $Config["dejsonifySchema"]
+
+    jsonify():         $Config["jsonifiedValues"]
+    jsonifyPromise():  Promise<$Config["jsonifiedValues"]>
+    jsonifyEffect():   Effect.Effect<never, z.ZodError<$Config["$schemableConfig"]["values"]>, $Config["jsonifiedValues"]>
+}

src/jsonifiable/dejsonifySchemable.ts

@@ -0,0 +1,47 @@
+import { Effect, pipe } from "effect"
+import { z } from "zod"
+import { JsonifiableSchemableClass, JsonifiableSchemableConfig } from "."
+import { parseZodTypeEffect } from "../util"
+
+
+export const dejsonifySchemable = <
+    C       extends JsonifiableSchemableClass<$Config>,
+    $Config extends JsonifiableSchemableConfig,
+>(
+    class_:   C | JsonifiableSchemableClass<$Config>,
+    values:   $Config["jsonifiedValues"],
+    params?:  Partial<z.ParseParams>,
+) =>
+    new class_(class_.dejsonifySchema.parse(values, params)) as InstanceType<C>
+
+
+export const dejsonifySchemablePromise = async <
+    C       extends JsonifiableSchemableClass<$Config>,
+    $Config extends JsonifiableSchemableConfig,
+>(
+    class_:   C | JsonifiableSchemableClass<$Config>,
+    values:   $Config["jsonifiedValues"],
+    params?:  Partial<z.ParseParams>,
+) =>
+    new class_(await class_.dejsonifySchema.parseAsync(values, params)) as InstanceType<C>
+
+
+export const dejsonifySchemableEffect = <
+    C       extends JsonifiableSchemableClass<$Config>,
+    $Config extends JsonifiableSchemableConfig,
+>(
+    class_:   C | JsonifiableSchemableClass<$Config>,
+    values:   $Config["jsonifiedValues"],
+    params?:  Partial<z.ParseParams>,
+) => pipe(
+    parseZodTypeEffect<
+        z.output<typeof class_.dejsonifySchema>,
+        z.input<typeof class_.dejsonifySchema>
+    >(
+        class_.dejsonifySchema,
+        values,
+        params,
+    ),
+
+    Effect.map(values => new class_(values) as InstanceType<C>),
+)

src/jsonifiable/index.ts

@@ -0,0 +1,4 @@
+export * from "./JsonifiableSchemableClass"
+export * from "./dejsonifySchemable"
+export * from "./makeJsonifiableSchemableClass"
+export * from "./schema"

src/jsonifiable/makeJsonifiableSchemableClass.ts

@@ -0,0 +1,98 @@
+import { Class } from "type-fest"
+import { JsonifiableObject } from "type-fest/source/jsonifiable"
+import { z } from "zod"
+import { JsonifiableSchemableClass, JsonifiableSchemableConfig, JsonifiableSchemableObject } from "."
+import { SchemableClass, SchemableConfig } from ".."
+import { StaticMembers, parseZodTypeEffect } from "../util"
+
+
+export function makeJsonifiableSchemableClass<
+    C                          extends SchemableClass<$SchemableConfig>,
+    $SchemableConfig           extends SchemableConfig,
+
+    JsonifiedValues            extends JsonifiableObject,
+
+    JsonifySchemaT             extends z.ZodRawShape,
+    JsonifySchemaUnknownKeys   extends z.UnknownKeysParam,
+    JsonifySchemaCatchall      extends z.ZodTypeAny,
+
+    DejsonifySchemaT           extends z.ZodRawShape,
+    DejsonifySchemaUnknownKeys extends z.UnknownKeysParam,
+    DejsonifySchemaCatchall    extends z.ZodTypeAny,
+>(
+    class_: C | SchemableClass<$SchemableConfig>,
+
+    props: {
+        jsonifySchema: (props: {
+            schema:  $SchemableConfig["schema"]
+            s:       $SchemableConfig["schema"]["shape"]
+        }) => z.ZodObject<
+            JsonifySchemaT,
+            JsonifySchemaUnknownKeys,
+            JsonifySchemaCatchall,
+            JsonifiedValues,
+            $SchemableConfig["values"]
+        >
+
+        dejsonifySchema: (props: {
+            schema:  $SchemableConfig["schema"]
+            s:       $SchemableConfig["schema"]["shape"]
+        }) => z.ZodObject<
+            DejsonifySchemaT,
+            DejsonifySchemaUnknownKeys,
+            DejsonifySchemaCatchall,
+            $SchemableConfig["values"],
+            JsonifiedValues
+        >
+    },
+) {
+
+    const jsonifySchema = props.jsonifySchema({
+        schema:  class_.schema,
+        s:       class_.schema.shape,
+    })
+
+    const dejsonifySchema = props.dejsonifySchema({
+        schema:  class_.schema,
+        s:       class_.schema.shape,
+    })
+
+    const $jsonifiableSchemableConfig = {
+        $schemableConfig:  class_.$schemableConfig,
+        jsonifiedValues:   undefined as unknown as JsonifiedValues,
+        jsonifySchema:     undefined as unknown as typeof jsonifySchema,
+        dejsonifySchema:   undefined as unknown as typeof dejsonifySchema,
+    } as const satisfies JsonifiableSchemableConfig
+
+    const jsonifiableClass = class JsonifiableSchemableObject extends class_ {
+        static readonly $jsonifiableSchemableConfig = $jsonifiableSchemableConfig
+        static readonly jsonifySchema               = jsonifySchema
+        static readonly dejsonifySchema             = dejsonifySchema
+
+        readonly $jsonifiableSchemableConfig = $jsonifiableSchemableConfig
+        readonly jsonifySchema               = jsonifySchema
+        readonly dejsonifySchema             = dejsonifySchema
+
+        jsonify() {
+            return this.jsonifySchema.parse(this)
+        }
+
+        jsonifyPromise() {
+            return this.jsonifySchema.parseAsync(this)
+        }
+
+        jsonifyEffect() {
+            return parseZodTypeEffect(this.jsonifySchema, this)
+        }
+    } satisfies JsonifiableSchemableClass<typeof $jsonifiableSchemableConfig>
+
+    return jsonifiableClass as unknown as (
+        Class<
+            InstanceType<C> & JsonifiableSchemableObject<typeof $jsonifiableSchemableConfig>,
+            ConstructorParameters<C>
+        > &
+        StaticMembers<C> &
+        StaticMembers<JsonifiableSchemableClass<typeof $jsonifiableSchemableConfig>>
+    )
+
+}

src/jsonifiable/schema/bigint.ts

@@ -0,0 +1,18 @@
+import { z } from "zod"
+
+
+export const jsonifyBigIntSchema = <S extends z.ZodBigInt>(schema: S) =>
+    schema.transform(v => v.toString())
+
+export const dejsonifyBigIntSchema = <S extends z.ZodBigInt>(schema: S) =>
+    z
+        .string()
+        .transform(v => {
+            try {
+                return BigInt(v)
+            }
+            catch (e) {
+                return v
+            }
+        })
+        .pipe(schema)

src/jsonifiable/schema/date.ts

@@ -0,0 +1,18 @@
+import { z } from "zod"
+
+
+export const jsonifyDateSchema = <S extends z.ZodDate>(schema: S) =>
+    schema.transform(v => v.toString())
+
+export const dejsonifyDateSchema = <S extends z.ZodDate>(schema: S) =>
+    z
+        .string()
+        .transform(v => {
+            try {
+                return new Date(v)
+            }
+            catch (e) {
+                return v
+            }
+        })
+        .pipe(schema)

src/jsonifiable/schema/decimal.ts

@@ -0,0 +1,19 @@
+import { Decimal } from "decimal.js"
+import { z } from "zod"
+
+
+export const jsonifyDecimalSchema = <S extends z.ZodType<Decimal, z.ZodTypeDef, Decimal>>(schema: S) =>
+    schema.transform(v => v.toJSON())
+
+export const dejsonifyDecimalSchema = <S extends z.ZodType<Decimal, z.ZodTypeDef, Decimal>>(schema: S) =>
+    z
+        .string()
+        .transform(v => {
+            try {
+                return new Decimal(v)
+            }
+            catch (e) {
+                return v
+            }
+        })
+        .pipe(schema)

src/jsonifiable/schema/index.ts

@@ -0,0 +1,4 @@
+export * from "./bigint"
+export * from "./date"
+export * from "./decimal"
+export * from "./schemable"

src/jsonifiable/schema/schemable.ts

@@ -0,0 +1,25 @@
+import { z } from "zod"
+import { JsonifiableSchemableClass, JsonifiableSchemableConfig } from ".."
+
+
+// TODO: try to find a way to get rid of the 'class_' arg
+export const jsonifySchemableSchema = <
+    C       extends JsonifiableSchemableClass<$Config>,
+    $Config extends JsonifiableSchemableConfig,
+    S       extends z.ZodType<InstanceType<C>, z.ZodTypeDef, InstanceType<C>>,
+>(
+    class_:  C | JsonifiableSchemableClass<$Config>,
+    schema:  S,
+) =>
+    schema.pipe(class_.jsonifySchema)
+
+// TODO: try to find a way to get rid of the 'class_' arg
+export const dejsonifySchemableSchema = <
+    C       extends JsonifiableSchemableClass<$Config>,
+    $Config extends JsonifiableSchemableConfig,
+    S       extends z.ZodType<InstanceType<C>, z.ZodTypeDef, InstanceType<C>>,
+>(
+    class_:  C | JsonifiableSchemableClass<$Config>,
+    schema:  S,
+) =>
+    class_.dejsonifySchema.transform(v => new class_(v)).pipe(schema)

src/makeSchemableClass.ts

@@ -0,0 +1,49 @@
+import { z } from "zod"
+import { SchemableClass, SchemableConfig } from "."
+import { zodObjectRemoveDefaults } from "./util"
+
+
+export function makeSchemableClass<
+    SchemaWithDefaultValuesT           extends z.ZodRawShape,
+    SchemaWithDefaultValuesUnknownKeys extends z.UnknownKeysParam,
+    SchemaWithDefaultValuesCatchall    extends z.ZodTypeAny,
+    SchemaWithDefaultValuesOutput      extends SchemaWithDefaultValuesInput,  // TODO: apply "StripSchemaInputDefaults"?
+    SchemaWithDefaultValuesInput       extends {},
+>(
+    {
+        schema: schemaWithDefaultValues
+    }: {
+        schema: z.ZodObject<
+            SchemaWithDefaultValuesT,
+            SchemaWithDefaultValuesUnknownKeys,
+            SchemaWithDefaultValuesCatchall,
+            SchemaWithDefaultValuesOutput,
+            SchemaWithDefaultValuesInput
+        >
+    }
+) {
+
+    const schema = zodObjectRemoveDefaults(schemaWithDefaultValues)
+
+    const $schemableConfig = {
+        values:                   undefined as unknown as z.output<typeof schemaWithDefaultValues>,
+        input:                    undefined as unknown as z.input<typeof schemaWithDefaultValues>,
+        schema:                   undefined as unknown as typeof schema,
+        schemaWithDefaultValues:  undefined as unknown as typeof schemaWithDefaultValues,
+    } as const satisfies SchemableConfig
+
+    return class SchemableObject {
+        static readonly $schemableConfig        = $schemableConfig
+        static readonly schema                  = schema
+        static readonly schemaWithDefaultValues = schemaWithDefaultValues
+
+        readonly $schemableConfig        = $schemableConfig
+        readonly schema                  = schema
+        readonly schemaWithDefaultValues = schemaWithDefaultValues
+
+        constructor(data: z.output<typeof schema>) {
+            Object.assign(this, data)
+        }
+    } as SchemableClass<typeof $schemableConfig>
+
+}

src/newSchemable.ts

@@ -0,0 +1,77 @@
+import { Effect, pipe } from "effect"
+import { HasRequiredKeys } from "type-fest"
+import { z } from "zod"
+import { SchemableClass, SchemableConfig } from "."
+import { parseZodTypeEffect } from "./util"
+
+
+type ParamsArgs = [] | [Partial<z.ParseParams>]
+
+type NewSchemableArgs<Input extends object> =
+    HasRequiredKeys<Input> extends true
+        ? [Input, ...ParamsArgs]
+        : [] | [Input, ...ParamsArgs]
+
+
+/**
+ * Creates a new instance of a SchemableClass with default values.
+ *
+ * @param class_ - The SchemableClass.
+ * @param values - The values to be parsed and used to create the instance.
+ * @param params - Optional parameters for parsing.
+ * @returns A new instance of the specified SchemableClass.
+ */
+export const newSchemable = <
+    C       extends SchemableClass<$Config>,
+    $Config extends SchemableConfig,
+>(
+    class_:               C | SchemableClass<$Config>,
+    ...[values, params]:  NewSchemableArgs<$Config["input"]>
+) =>
+    new class_(class_.schemaWithDefaultValues.parse(values || {}, params)) as InstanceType<C>
+
+
+/**
+ * Creates a new instance of a SchemableClass with default values asynchronously.
+ *
+ * @param class_ - The SchemableClass.
+ * @param values - The values to be parsed and used to create the instance.
+ * @param params - Optional parameters for parsing.
+ * @returns A Promise resolving to a new instance of the specified SchemableClass.
+ */
+export const newSchemablePromise = async <
+    C       extends SchemableClass<$Config>,
+    $Config extends SchemableConfig,
+>(
+    class_:               C | SchemableClass<$Config>,
+    ...[values, params]:  NewSchemableArgs<$Config["input"]>
+) =>
+    new class_(await class_.schemaWithDefaultValues.parseAsync(values || {}, params)) as InstanceType<C>
+
+
+/**
+ * Creates a new instance of a SchemableClass with default values as an Effect.
+ *
+ * @param class_ - The SchemableClass.
+ * @param values - The values to be parsed and used to create the instance.
+ * @param params - Optional parameters for parsing.
+ * @returns An Effect producing a new instance of the specified SchemableClass.
+ */
+export const newSchemableEffect = <
+    C       extends SchemableClass<$Config>,
+    $Config extends SchemableConfig,
+>(
+    class_:               C | SchemableClass<$Config>,
+    ...[values, params]:  NewSchemableArgs<$Config["input"]>
+) => pipe(
+    parseZodTypeEffect<
+        z.output<typeof class_.schemaWithDefaultValues>,
+        z.input<typeof class_.schemaWithDefaultValues>
+    >(
+        class_.schemaWithDefaultValues,
+        values || {},
+        params,
+    ),
+
+    Effect.map(values => new class_(values) as InstanceType<C>),
+)

src/tests.ts

@@ -0,0 +1,64 @@
+import { z } from "zod"
+import { makeSchemableClass, newSchemable } from "."
+import { dejsonifyBigIntSchema, dejsonifySchemable, dejsonifySchemableSchema, jsonifyBigIntSchema, jsonifySchemableSchema, makeJsonifiableSchemableClass } from "./jsonifiable"
+
+
+const GroupSchema = z.object({
+    /** Group ID */
+    id: z.bigint(),
+
+    /** Group name */
+    name: z.string(),
+})
+
+const GroupSchemableObject = makeSchemableClass({ schema: GroupSchema })
+
+const GroupJsonifiableSchemableObject = makeJsonifiableSchemableClass(GroupSchemableObject, {
+    jsonifySchema: ({ schema, s }) => schema.extend({
+        id: jsonifyBigIntSchema(s.id)
+    }),
+
+    dejsonifySchema: ({ schema, s }) => schema.extend({
+        id: dejsonifyBigIntSchema(s.id)
+    }),
+})
+
+class Group extends GroupJsonifiableSchemableObject {}
+
+
+const UserSchema = z.object({
+    /** User ID */
+    id: z.bigint(),
+
+    /** Name string */
+    name: z.string(),
+
+    /** User group */
+    group: z.instanceof(Group),
+})
+
+const UserSchemableObject = makeSchemableClass({ schema: UserSchema })
+
+const UserJsonifiableSchemableObject = makeJsonifiableSchemableClass(UserSchemableObject, {
+    jsonifySchema: ({ schema, s }) => schema.extend({
+        id: jsonifyBigIntSchema(s.id),
+        group: jsonifySchemableSchema(Group, s.group),
+    }),
+
+    dejsonifySchema: ({ schema, s }) => schema.extend({
+        id: dejsonifyBigIntSchema(s.id),
+        group: dejsonifySchemableSchema(Group, s.group),
+    }),
+})
+
+class User extends UserJsonifiableSchemableObject {}
+
+
+const group1 = new Group({ id: 1n, name: "Group 1" })
+
+const user1 = new User({ id: 1n, name: "User 1", group: group1 })
+const user2 = newSchemable(User, { id: 2n, name: "User 2", group: group1 })
+
+const jsonifiedUser2 = user2.jsonify()
+const dejsonifiedUser2 = dejsonifySchemable(User, jsonifiedUser2)
+console.log(dejsonifiedUser2)

src/util.ts

@@ -0,0 +1,82 @@
+import { Effect, pipe } from "effect"
+import { mapValues } from "lodash-es"
+import { z } from "zod"
+
+
+/**
+ * Represents the static members of a class.
+ * @template C - The class type.
+ */
+export type StaticMembers<C> = {
+    [Key in keyof C as Key extends "prototype" ? never : Key]: C[Key]
+}
+
+
+/**
+ * Removes default values from a ZodObject schema and returns a new schema.
+ *
+ * @param schema - The ZodObject schema to process.
+ * @returns A new ZodObject schema with default values removed.
+ */
+export const zodObjectRemoveDefaults = <
+    T           extends z.ZodRawShape,
+    UnknownKeys extends z.UnknownKeysParam,
+    Catchall    extends z.ZodTypeAny,
+    Output      extends {},
+    Input       extends {},
+>(
+    schema: z.ZodObject<
+        T,
+        UnknownKeys,
+        Catchall,
+        Output,
+        Input
+    >
+) =>
+    schema.extend(zodShapeRemoveDefaults(schema.shape))
+
+/**
+ * Removes default values from a ZodObject shape and returns a new shape.
+ *
+ * @param shape - The ZodObject shape to process.
+ * @returns A new shape with default values removed.
+ */
+export const zodShapeRemoveDefaults = <
+    Shape extends z.ZodRawShape
+>(
+    shape: Shape
+): {
+    [K in keyof Shape]:
+        Shape[K] extends z.ZodDefault<infer T>
+            ? T
+            : Shape[K]
+} =>
+    mapValues(shape, el =>
+        el instanceof z.ZodDefault
+            ? el.removeDefault()
+            : el
+    )
+
+
+/**
+ * Parses a value using a ZodType schema wrapped in an Effect monad.
+ *
+ * @param schema - The ZodType schema to use for parsing.
+ * @param args - The arguments to pass to the `safeParseAsync` method of the schema.
+ * @returns An Effect monad representing the parsing result.
+ */
+export const parseZodTypeEffect = <
+    Output,
+    Input,
+>(
+    schema:   z.ZodType<Output, z.ZodTypeDef, Input>,
+    ...args:  Parameters<typeof schema.safeParseAsync>
+) => pipe(
+    Effect.promise(() => schema.safeParseAsync(...args)),
+
+    Effect.flatMap(response =>
+        response.success
+            ? Effect.succeed(response.data)
+            : Effect.fail(response.error)
+    ),
+)

tsconfig.json

@@ -0,0 +1,24 @@
+{
+  "compilerOptions": {
+    "lib": ["ESNext"],
+    "module": "esnext",
+    "target": "esnext",
+    "moduleResolution": "bundler",
+    "moduleDetection": "force",
+    // "allowImportingTsExtensions": true,
+    // "noEmit": true,
+    "declaration": true,
+    "composite": true,
+    "strict": true,
+    "downlevelIteration": true,
+    "skipLibCheck": true,
+    "jsx": "react-jsx",
+    "allowSyntheticDefaultImports": true,
+    "forceConsistentCasingInFileNames": true,
+    "allowJs": true,
+    "types": [
+      "bun-types"
+    ]
+  },
+  "include": ["src"]
+}