Add true programmatic schemas

[ridafkih]

As per #35, this re-implements the ability for a purely programmatic approach to schema generation, models and enums can be created independent of a parent schema while retaining full prior functionality.

An example has been added in examples/programmatic-usage, in which an API which can generate basic models is created.

The core logic for this endpoint is as follows.

handler(context) {
  const { body } = context.request;
  const model = new PrismaModel(body.modelName);
  model.string("id", { id: true, default: { uuid: true } });

  for (const { type, name } of body.fields) {
    model[type](name);
  }

  return {
    status: 200,
    body: model.toString(),
  };
}

The README for said example is as follows.

---

This example creates an API at 0.0.0.0:8000 with a route in which you can send GET requests to a /model endpoint.
It accepts the following zod schema.

validation.object({
  modelName: validation.string(),
  fields: validation.array(validation.object({
    type: validation.enum(["string", "int"]),
    name: validation.string(),
  })),
});

When a request is sent with the following body to 0.0.0.0:8000/model, it will respond with the subsequent string.

{
	"modelName": "ExampleModel",
	"fields": [
		{
			"type": "int",
			"name": "number"
		},
		{
			"type": "string",
			"name": "name"
		}
	]
}

model ExampleModel {
  id     String @id @default(uuid())
  number Int
  name   String
}

[ridafkih]

@efreila, is this what you had in mind? Let me know before EOD so I can make adjustments and deploy! :)

[ridafkih]

With this, proper documentation may be needed as the feature usage may require a better knowledge of the constructors and methods.

[efreila]

A few small comments but looks great overall 🚀

[efreila]

LG2M!

Thanks for working on this and addressing comments/feedback so hastily 🚀

[ridafkih]

@efreila Thank you for the valuable feedback!

[ridafkih]

I will mention you once this is deployed!