Make `Component` suffix optional in lookup

[boardfish]

It was previously confirmed that the Component suffix would remain a default in ViewComponent, but I'd appreciate the flexibility not to have to use it to keep in line with my existing schema for component names and namespaces.

[Spone]

Hi @boardfish happy to see you here :)

How would you prefer view_component-form to handle this?

[boardfish]

Hey there! :wave: Finally getting around to solving the problem of components and forms at @raisedevs, and it looks like the ideal solution's in the works right here. Nice work!

I'd imagine either by way of a config option on the builder or ViewComponent::Form, a manual lookup, or both. I did have the loose idea of a lookup config that's something like slots in ViewComponent itself, e.g:

lookup :text_field, SomeNamespace::TextFieldComponent
lookup :text_area, -> { |params| SomeNamespace::TextFieldComponent.new(type: :text_area, **params) }

The second example in particular is interesting because I'm sure some folks will want to use the same component as a base for several different fields. You could argue that that's also achievable with inheritance as has been done here in view_component-form, so perhaps it can be skipped as a concern.

[Spone]

We could draw inspiration from Policy lookup in ActionPolicy, and offer a way to customize lookup logic as well.

[joelzwarrington]

@Spone do you think I could work on this next?

Once #160 is released this would be relatively easy to implement in configuration.

[Spone]

@joelzwarrington we'd be happy to review your contribution to implement this option!

[joelzwarrington]

Sounds good - I'll look at getting up a PR in the next day or so.

---

You previously mentioned using a similar approach to the lookup chain in Action Policy, is that still the case?

Something like this?

# in configuration...
lookup_chain = [
  lambda do |component_name, namespaces: []|
    namespaces.find do |namespace|
      "#{namespace}::#{component_name.to_s.camelize}Component".safe_constantize
    end
  end
]

and then used in ViewComponent::Form::Renderer#component_klass

def component_klass(component_name)
  @__component_klass_cache[component_name] ||= begin
    component_klass = ViewComponent::Form.configuration.lookup_chain.find do |lookup|
      lookup.call(component_name, namespaces: lookup_namespaces)
    end

    unless component_klass.is_a?(Class) && component_klass < ViewComponent::Base
      raise NotImplementedComponentError, "Component named #{component_name} doesn't exist " \
        "or is not a ViewComponent::Base class"
    end

    component_klass
  end
end

thoughts on this?

[joelzwarrington]

hey @Spone what do you think? would you be onboard with that approach?

would be nice to be aligned before I whip something up

[Spone]

👋 @joelzwarrington sorry about the late reply! Your approach sounds solid, I think you can move forward with it!

[joelzwarrington]

No worries! I'll go ahead with my approach then. 👍

feel free to assign this issue to me if you'd like