Inuit sync of tax, product accounting, accounts and invoices

app/Models/Invoice.php

@@ -209,6 +209,13 @@ class Invoice extends Model implements IDs
 		return $this->hasMany(PaymentItem::class);
 	}
 
+	public function providers()
+	{
+		return $this->belongsToMany(ProviderOauth::class,'invoice__provider')
+			->where('invoice__provider.site_id',$this->site_id)
+			->withPivot('ref','synctoken','created_at','updated_at');
+	}
+
 	/* SCOPES */
 
 	/**

app/Models/InvoiceItemTax.php

@@ -12,4 +12,11 @@ class InvoiceItemTax extends Model
 
 	protected $table = 'invoice_item_taxes';
 	public $timestamps = FALSE;
+
+	/* RELATIONS */
+
+	public function tax()
+	{
+		return $this->belongsTo(Tax::class);
+	}
 }

app/Models/Product.php

@@ -16,7 +16,7 @@ use Leenooks\Traits\ScopeActive;
 
 use App\Http\Controllers\AccountingController;
 use App\Interfaces\{IDs,ProductItem};
-use App\Traits\{ProductDetails,SiteID};
+use App\Traits\{ProductDetails,ProviderRef,SiteID};
 
 /**
  * Class Product
@@ -66,7 +66,7 @@ use App\Traits\{ProductDetails,SiteID};
  */
 class Product extends Model implements IDs
 {
-	use Compoships,HasFactory,SiteID,ProductDetails,ScopeActive;
+	use Compoships,HasFactory,SiteID,ProductDetails,ScopeActive,ProviderRef;
 
 	protected $casts = [
 		'pricing'=>'collection',
@@ -106,6 +106,13 @@ class Product extends Model implements IDs
 
 	/* RELATIONS */
 
+	public function providers()
+	{
+		return $this->belongsToMany(ProviderOauth::class,'product__provider')
+			->where('product__provider.site_id',$this->site_id)
+			->withPivot('ref');
+	}
+
 	/**
 	 * Which services are configured with this product
 	 *

app/Models/ProviderOauth.php

@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Database\Eloquent\Model;
 
 use App\Traits\SiteID;
@@ -23,10 +24,17 @@ class ProviderOauth extends Model
 			->withPivot('ref','synctoken','created_at','updated_at');
 	}
 
-	public function products()
+	public function invoices()
 	{
-		return $this->belongsToMany(Product::class,'product__provider')
-			->where('product__provider.site_id',$this->site_id)
+		return $this->belongsToMany(Invoice::class,'invoice__provider')
+			->where('invoice__provider.site_id',$this->site_id)
+			->withPivot('ref','synctoken','created_at','updated_at');
+	}
+
+	public function taxes()
+	{
+		return $this->belongsToMany(Tax::class,'tax__provider')
+			->where('tax__provider.site_id',$this->site_id)
 			->withPivot('ref','synctoken','created_at','updated_at');
 	}
 
@@ -42,23 +50,30 @@ class ProviderOauth extends Model
 
 	/* METHODS */
 
+	/**
+	 * @return string|null
+	 */
 	public function api_class(): ?string
 	{
 		return config('services.provider.'.strtolower($this->name).'.api');
 	}
 
-	public function API(ProviderToken $o,bool $tryprod=FALSE): mixed
+	/**
+	 * Return a list of the provider OAUTH details
+	 */
+	public static function providers(): Collection
 	{
-		return ($this->api_class() && $o->access_token) ? new ($this->api_class())($o,$tryprod) : NULL;
+		return (new self)::whereIn('name',array_keys(config('services.provider')))->get();
 	}
 
 	/**
-	 * Do we have API details for this supplier
+	 * Return the token object for a specific user
 	 *
-	 * @return bool
+	 * @param User $uo
+	 * @return ProviderToken|null
 	 */
-	public function hasAPIdetails(): bool
+	public function token(User $uo): ?ProviderToken
 	{
-		return $this->api_class() && $this->access_token && (! $this->hasAccessTokenExpired());
+		return (($x=$this->tokens->where('user_id',$uo->id))->count() === 1) ? $x->pop() : NULL;
 	}
 }

app/Models/ProviderToken.php

@@ -15,10 +15,38 @@ class ProviderToken extends ProviderTokenBase
 		'refresh_token_expires_at',
 	];
 
+	protected $with = ['provider'];
+
 	/* RELATIONS */
 
 	public function provider()
 	{
 		return $this->belongsTo(ProviderOauth::class,'provider_oauth_id');
 	}
+
+	/* METHODS */
+
+	/**
+	 * Return an API object to interact with this provider
+	 *
+	 * @return mixed
+	 * @throws \Exception
+	 */
+	public function API(): mixed
+	{
+		if (! $this->provider->api_class() || ! $this->access_token)
+			throw new \Exception(sprintf('No API details for [%s]',$this->provider->name));
+
+		return new ($this->provider->api_class())($this);
+	}
+
+	/**
+	 * Do we have API details for this provider
+	 *
+	 * @return bool
+	 */
+	public function hasAPIdetails(): bool
+	{
+		return $this->provider->api_class() && $this->access_token && (! $this->hasAccessTokenExpired());
+	}
 }

app/Models/Tax.php

@@ -5,8 +5,12 @@ namespace App\Models;
 use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Database\Eloquent\Model;
 
+use App\Traits\ProviderRef;
+
 class Tax extends Model
 {
+	use ProviderRef;
+
 	public $timestamps = FALSE;
 
 	/* RELATIONS */
@@ -16,6 +20,12 @@ class Tax extends Model
 		return $this->belongsTo(Country::class);
 	}
 
+	public function providers()
+	{
+		return $this->belongsToMany(ProviderOauth::class,'tax__provider')
+			->withPivot('ref','synctoken','created_at','updated_at');
+	}
+
 	/* METHODS */
 
 	/**