package usecase

import (
	"context"
	"fmt"

	"golang.org/x/text/language"

	"source.toby3d.me/toby3d/home/internal/domain"
	"source.toby3d.me/toby3d/home/internal/site"
	"source.toby3d.me/toby3d/home/internal/static"
)

type siteUseCase struct {
	sites   site.Repository
	statics static.Repository
}

func NewSiteUseCase(sites site.Repository, statics static.Repository) site.UseCase {
	return &siteUseCase{
		sites:   sites,
		statics: statics,
	}
}

func (ucase *siteUseCase) Do(ctx context.Context, lang language.Tag) (*domain.Site, error) {
	out, err := ucase.sites.Get(ctx, language.Und)
	if err != nil {
		return nil, fmt.Errorf("cannot find base site data: %w", err)
	}

	out.Resources, _, _ = ucase.statics.Fetch(ctx, "")

	sub, err := ucase.sites.Get(ctx, lang)
	if err != nil {
		return out, nil
	}

	out.Language = sub.Language

	for k, v := range sub.Params {
		out.Params[k] = v
	}

	return out, nil
}