apilogs

app/Console/Commands/PollFuelPrices.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Console\Commands;
+
+use App\Events\PricesUpdatedEvent;
+use App\Services\FuelPriceService;
+use Illuminate\Console\Command;
+use Throwable;
+
+class PollFuelPrices extends Command
+{
+    protected $signature = 'fuel:poll {--full : Also refresh station metadata}';
+
+    protected $description = 'Poll the Fuel Finder API for latest prices';
+
+    public function handle(FuelPriceService $service): int
+    {
+        $fullRefresh = (bool) $this->option('full');
+
+        try {
+            if ($fullRefresh) {
+                $this->info('Refreshing station metadata...');
+                $service->refreshStations();
+            }
+
+            $this->info('Polling fuel prices...');
+            $inserted = $service->pollPrices();
+
+            $this->info("Done. $inserted new price record(s) inserted.");
+
+            PricesUpdatedEvent::dispatch($inserted, $fullRefresh);
+        } catch (Throwable $e) {
+            $this->error("Poll failed: {$e->getMessage()}");
+
+            return self::FAILURE;
+        }
+
+        return self::SUCCESS;
+    }
+}

app/Events/PricesUpdatedEvent.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Events;
+
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class PricesUpdatedEvent
+{
+    use Dispatchable, SerializesModels;
+
+    public function __construct(
+        /** Number of new price records inserted this poll */
+        public readonly int $insertedCount,
+        /** Whether this was a full metadata refresh */
+        public readonly bool $fullRefresh,
+    ) {}
+}

app/Models/ApiLog.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Model;
+
+#[Fillable(['service', 'method', 'url', 'status_code', 'duration_ms', 'error'])]
+class ApiLog extends Model
+{
+    const null UPDATED_AT = null;
+
+    protected function casts(): array
+    {
+        return [
+            'created_at' => 'datetime',
+        ];
+    }
+}

app/Models/StationPriceCurrent.php

@@ -15,17 +15,21 @@ class StationPriceCurrent extends Model
     /** @use HasFactory<StationPriceCurrentFactory> */
     use HasFactory;
 
+    protected $table = 'station_prices_current';
+
     public $timestamps = false;
+
     protected $primaryKey = null;
+
     public $incrementing = false;
 
     protected function casts(): array
     {
         return [
-            'fuel_type'          => FuelType::class,
+            'fuel_type' => FuelType::class,
             'price_effective_at' => 'datetime',
-            'price_reported_at'  => 'datetime',
-            'recorded_at'        => 'datetime',
+            'price_reported_at' => 'datetime',
+            'recorded_at' => 'datetime',
         ];
     }
 

app/Services/ApiLogger.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\ApiLog;
+use Illuminate\Http\Client\Response;
+use Throwable;
+
+class ApiLogger
+{
+    /**
+     * Execute an HTTP request and log it to api_logs.
+     *
+     * The callable must return an Illuminate\Http\Client\Response.
+     * Exceptions are logged and re-thrown so the caller handles them.
+     *
+     * @param  callable(): Response  $request
+     */
+    public function send(string $service, string $method, string $url, callable $request): Response
+    {
+        $start = microtime(true);
+        $statusCode = null;
+        $error = null;
+
+        try {
+            $response = $request();
+            $statusCode = $response->status();
+
+            return $response;
+        } catch (Throwable $e) {
+            $error = $e->getMessage();
+
+            throw $e;
+        } finally {
+            ApiLog::create([
+                'service' => $service,
+                'method' => strtoupper($method),
+                'url' => $url,
+                'status_code' => $statusCode,
+                'duration_ms' => (int) round((microtime(true) - $start) * 1000),
+                'error' => $error,
+            ]);
+        }
+    }
+}

app/Services/FuelPriceService.php

@@ -2,62 +2,147 @@
 
 namespace App\Services;
 
+use App\Enums\FuelType;
 use App\Models\Station;
+use App\Models\StationPrice;
+use App\Models\StationPriceCurrent;
+use Illuminate\Support\Carbon;
 use Illuminate\Support\Facades\Cache;
 use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Log;
+use Throwable;
+use ValueError;
 
 class FuelPriceService
 {
-    private const TOKEN_CACHE_KEY = 'fuel_finder_access_token';
+    private const string TOKEN_CACHE_KEY = 'fuel_finder_access_token';
 
     public function __construct(
         private readonly StationTaggingService $taggingService,
+        private readonly ApiLogger $apiLogger,
     ) {}
 
     public function getAccessToken(): string
     {
         return Cache::remember(self::TOKEN_CACHE_KEY, 3540, function (): string {
-            $response = Http::timeout(10)
-                ->post(config('services.fuel_finder.base_url').'/oauth/generate_access_token', [
-                    'client_id'     => config('services.fuel_finder.client_id'),
+            $url = config('services.fuel_finder.base_url').'/oauth/generate_access_token';
+            $response = $this->apiLogger->send('fuel_finder', 'POST', $url, fn () => Http::timeout(10)
+                ->post($url, [
+                    'client_id' => config('services.fuel_finder.client_id'),
                     'client_secret' => config('services.fuel_finder.client_secret'),
-                ]);
+                ]));
 
             return $response->json('data.access_token');
         });
     }
 
+    /**
+     * Poll the prices endpoint, deduplicate, and persist changes.
+     *
+     * @return int Number of new price records inserted
+     */
+    public function pollPrices(): int
+    {
+        $token = $this->getAccessToken();
+        $inserted = 0;
+        $batch = 1;
+
+        do {
+            try {
+                $baseUrl = config('services.fuel_finder.base_url').'/pfs/fuel-prices';
+                $params = ['batch-number' => $batch];
+                $logUrl = $baseUrl.'?'.http_build_query($params);
+                $response = $this->apiLogger->send('fuel_finder', 'GET', $logUrl, fn () => Http::timeout(30)
+                    ->withToken($token)
+                    ->get($baseUrl, $params));
+
+                $stations = $response->json() ?? [];
+            } catch (Throwable $e) {
+                Log::error('FuelPriceService: price batch fetch failed', [
+                    'batch' => $batch,
+                    'error' => $e->getMessage(),
+                ]);
+                break;
+            }
+
+            if (empty($stations)) {
+                break;
+            }
+
+            $inserted += $this->processPriceBatch($stations);
+            $batch++;
+        } while (true);
+
+        return $inserted;
+    }
+
+    /**
+     * Fetch and upsert all station metadata.
+     * Called on full daily refresh before pollPrices().
+     */
+    public function refreshStations(): void
+    {
+        $token = $this->getAccessToken();
+        $batch = 1;
+
+        do {
+            try {
+                $baseUrl = config('services.fuel_finder.base_url').'/pfs';
+                $params = ['batch-number' => $batch];
+                $logUrl = $baseUrl.'?'.http_build_query($params);
+                $response = $this->apiLogger->send('fuel_finder', 'GET', $logUrl, fn () => Http::timeout(30)
+                    ->withToken($token)
+                    ->get($baseUrl, $params));
+
+                $stations = $response->json() ?? [];
+            } catch (Throwable $e) {
+                Log::error('FuelPriceService: station batch fetch failed', [
+                    'batch' => $batch,
+                    'error' => $e->getMessage(),
+                ]);
+                break;
+            }
+
+            if (empty($stations)) {
+                break;
+            }
+
+            $this->upsertStations($stations);
+            $batch++;
+        } while (true);
+    }
+
     /** @param array<int, array<string, mixed>> $apiStations */
     public function upsertStations(array $apiStations): void
     {
-        $now  = now();
+        $now = now();
         $rows = [];
 
         foreach ($apiStations as $data) {
             $station = new Station([
-                'node_id'                        => $data['node_id'],
-                'trading_name'                   => $data['trading_name'],
-                'brand_name'                     => $data['brand_name'] ?? null,
-                'is_same_trading_and_brand'      => $data['is_same_trading_and_brand_name'] ?? false,
-                'is_supermarket'                 => false,
-                'is_motorway_service_station'    => $data['is_motorway_service_station'] ?? false,
+                'node_id' => $data['node_id'],
+                'trading_name' => $data['trading_name'],
+                'brand_name' => $data['brand_name'] ?? null,
+                'is_same_trading_and_brand' => $data['is_same_trading_and_brand_name'] ?? false,
+                'is_supermarket' => false,
+                'is_motorway_service_station' => $data['is_motorway_service_station'] ?? false,
                 'is_supermarket_service_station' => $data['is_supermarket_service_station'] ?? false,
-                'temporary_closure'              => $data['temporary_closure'] ?? false,
-                'permanent_closure'              => $data['permanent_closure'] ?? false,
-                'permanent_closure_date'         => $data['permanent_closure_date'] ?? null,
-                'public_phone_number'            => $data['public_phone_number'] ?? null,
-                'address_line_1'                 => $data['location']['address_line_1'] ?? null,
-                'address_line_2'                 => $data['location']['address_line_2'] ?? null,
-                'city'                           => $data['location']['city'] ?? null,
-                'county'                         => $data['location']['county'] ?? null,
-                'country'                        => $data['location']['country'] ?? null,
-                'postcode'                       => $data['location']['postcode'],
-                'lat'                            => $data['location']['latitude'],
-                'lng'                            => $data['location']['longitude'],
-                'amenities'                      => $data['amenities'] ?? [],
-                'opening_times'                  => $data['opening_times'] ?? null,
-                'fuel_types'                     => $data['fuel_types'] ?? [],
-                'last_seen_at'                   => $now,
+                'temporary_closure' => $data['temporary_closure'] ?? false,
+                'permanent_closure' => $data['permanent_closure'] ?? false,
+                'permanent_closure_date' => $data['permanent_closure_date'] ?? null,
+                'public_phone_number' => $data['public_phone_number'] ?? null,
+                'address_line_1' => $data['location']['address_line_1'] ?? null,
+                'address_line_2' => $data['location']['address_line_2'] ?? null,
+                'city' => $data['location']['city'] ?? null,
+                'county' => $data['location']['county'] ?? null,
+                'country' => $data['location']['country'] ?? null,
+                'postcode' => $data['location']['postcode'],
+                'lat' => $data['location']['latitude'],
+                'lng' => $data['location']['longitude'],
+                'amenities' => $data['amenities'] ?? [],
+                'opening_times' => $data['opening_times'] ?? null,
+                'fuel_types' => $data['fuel_types'] ?? [],
+                'last_seen_at' => $now,
             ]);
 
             $this->taggingService->tag($station);
@@ -66,4 +151,75 @@ class FuelPriceService
 
         Station::upsert($rows, ['node_id'], array_keys($rows[0] ?? []));
     }
+
+    /**
+     * Process one batch of API price data.
+     *
+     * Loads current prices for all stations in the batch, inserts a new
+     * station_prices row only when the price has changed, and upserts
+     * station_prices_current to reflect the latest known price.
+     *
+     * @param  array<int, array<string, mixed>>  $apiBatch
+     */
+    private function processPriceBatch(array $apiBatch): int
+    {
+        $stationIds = array_column($apiBatch, 'node_id');
+
+        // Load current prices for all stations in this batch in one query
+        $currentPrices = StationPriceCurrent::whereIn('station_id', $stationIds)
+            ->get()
+            ->groupBy('station_id')
+            ->map(fn ($rows) => $rows->keyBy(fn ($r) => $r->fuel_type->value));
+
+        $now = now();
+        $newPrices = [];
+        $upsertRows = [];
+
+        foreach ($apiBatch as $station) {
+            $stationId = $station['node_id'];
+
+            foreach ($station['fuel_prices'] ?? [] as $priceData) {
+                try {
+                    $fuelType = FuelType::fromApiValue($priceData['fuel_type']);
+                } catch (ValueError) {
+                    continue; // Skip unknown fuel types
+                }
+
+                $pricePence = (int) round($priceData['price'] * 100);
+                $effectiveAt = Carbon::parse($priceData['price_change_effective_timestamp']);
+                $reportedAt = Carbon::parse($priceData['price_last_updated']);
+                $currentPricePence = $currentPrices[$stationId][$fuelType->value]->price_pence ?? null;
+
+                $row = [
+                    'station_id' => $stationId,
+                    'fuel_type' => $fuelType->value,
+                    'price_pence' => $pricePence,
+                    'price_effective_at' => $effectiveAt,
+                    'price_reported_at' => $reportedAt,
+                    'recorded_at' => $now,
+                ];
+
+                // Always upsert current; only write history when price changed
+                $upsertRows[] = $row;
+
+                if ($currentPricePence !== $pricePence) {
+                    $newPrices[] = $row;
+                }
+            }
+        }
+
+        if (! empty($newPrices)) {
+            StationPrice::insert($newPrices);
+        }
+
+        if (! empty($upsertRows)) {
+            StationPriceCurrent::upsert(
+                $upsertRows,
+                ['station_id', 'fuel_type'],
+                ['price_pence', 'price_effective_at', 'price_reported_at', 'recorded_at'],
+            );
+        }
+
+        return count($newPrices);
+    }
 }

config/services.php

@@ -36,8 +36,8 @@ return [
     ],
 
     'fuel_finder' => [
-        'base_url'      => env('FUEL_FINDER_BASE_URL', 'https://www.fuel-finder.service.gov.uk/api/v1'),
-        'client_id'     => env('FUEL_FINDER_CLIENT_ID'),
+        'base_url' => env('FUEL_FINDER_BASE_URL', 'https://www.fuel-finder.service.gov.uk/api/v1'),
+        'client_id' => env('FUEL_FINDER_CLIENT_ID'),
         'client_secret' => env('FUEL_FINDER_CLIENT_SECRET'),
     ],
 

database/migrations/2026_04_04_073654_create_api_logs_table.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('api_logs', function (Blueprint $table): void {
+            $table->id();
+            $table->string('service', 32)->comment('e.g. fuel_finder, fred, postcodes_io');
+            $table->string('method', 8)->comment('HTTP method: GET, POST');
+            $table->string('url', 512)->comment('Full URL including query string');
+            $table->unsignedSmallInteger('status_code')->nullable()->comment('HTTP status code; null if request threw an exception');
+            $table->unsignedInteger('duration_ms')->comment('Round-trip response time in milliseconds');
+            $table->text('error')->nullable()->comment('Exception message if request failed');
+            $table->dateTime('created_at');
+
+            $table->index('service');
+            $table->index('created_at');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('api_logs');
+    }
+};

routes/console.php

@@ -2,7 +2,22 @@
 
 use Illuminate\Foundation\Inspiring;
 use Illuminate\Support\Facades\Artisan;
+use Illuminate\Support\Facades\Schedule;
 
 Artisan::command('inspire', function () {
     $this->comment(Inspiring::quote());
 })->purpose('Display an inspiring quote');
+
+// Poll for price changes every 15 minutes
+Schedule::command('fuel:poll')
+    ->everyFifteenMinutes()
+    ->withoutOverlapping()
+    ->onOneServer()
+    ->runInBackground();
+
+// Full refresh (station metadata + prices) once daily at 3am
+Schedule::command('fuel:poll --full')
+    ->dailyAt('03:00')
+    ->withoutOverlapping()
+    ->onOneServer()
+    ->runInBackground();

tests/Unit/ApiLoggerTest.php

@@ -0,0 +1,65 @@
+<?php
+
+use App\Models\ApiLog;
+use App\Services\ApiLogger;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Http;
+
+uses(RefreshDatabase::class);
+
+beforeEach(function (): void {
+    $this->apiLogger = new ApiLogger;
+});
+
+it('logs a successful GET request', function (): void {
+    Http::fake(['https://example.com/data' => Http::response(['ok' => true])]);
+
+    $this->apiLogger->send('test_service', 'GET', 'https://example.com/data', fn () => Http::get('https://example.com/data'));
+
+    $log = ApiLog::first();
+    expect($log)->not->toBeNull()
+        ->and($log->service)->toBe('test_service')
+        ->and($log->method)->toBe('GET')
+        ->and($log->url)->toBe('https://example.com/data')
+        ->and($log->status_code)->toBe(200)
+        ->and($log->error)->toBeNull()
+        ->and($log->duration_ms)->toBeGreaterThanOrEqual(0);
+});
+
+it('logs a failed request and re-throws the exception', function (): void {
+    Http::fake(['https://example.com/fail' => fn () => throw new RuntimeException('connection refused')]);
+
+    expect(fn () => $this->apiLogger->send(
+        'test_service', 'GET', 'https://example.com/fail',
+        fn () => Http::get('https://example.com/fail')
+    ))->toThrow(RuntimeException::class, 'connection refused');
+
+    $log = ApiLog::first();
+    expect($log)->not->toBeNull()
+        ->and($log->status_code)->toBeNull()
+        ->and($log->error)->toBe('connection refused');
+});
+
+it('logs a POST request with correct method', function (): void {
+    Http::fake(['https://example.com/token' => Http::response(['token' => 'abc'], 201)]);
+
+    $this->apiLogger->send('test_service', 'POST', 'https://example.com/token', fn () => Http::post('https://example.com/token', ['key' => 'val']));
+
+    expect(ApiLog::first()->method)->toBe('POST');
+});
+
+it('records duration in milliseconds', function (): void {
+    Http::fake(['https://example.com/slow' => Http::response([])]);
+
+    $this->apiLogger->send('test_service', 'GET', 'https://example.com/slow', fn () => Http::get('https://example.com/slow'));
+
+    expect(ApiLog::first()->duration_ms)->toBeInt()->toBeGreaterThanOrEqual(0);
+});
+
+it('upcases the method', function (): void {
+    Http::fake(['https://example.com/*' => Http::response([])]);
+
+    $this->apiLogger->send('test_service', 'get', 'https://example.com/x', fn () => Http::get('https://example.com/x'));
+
+    expect(ApiLog::first()->method)->toBe('GET');
+});

tests/Unit/Services/FuelPriceServiceTest.php

@@ -3,6 +3,7 @@
 use App\Models\Station;
 use App\Models\StationPrice;
 use App\Models\StationPriceCurrent;
+use App\Services\ApiLogger;
 use App\Services\FuelPriceService;
 use App\Services\StationTaggingService;
 use Illuminate\Foundation\Testing\RefreshDatabase;
@@ -12,7 +13,7 @@ use Illuminate\Support\Facades\Http;
 uses(RefreshDatabase::class);
 
 beforeEach(function (): void {
-    $this->service = new FuelPriceService(new StationTaggingService());
+    $this->service = new FuelPriceService(new StationTaggingService, new ApiLogger);
 });
 
 it('fetches and caches an access token', function (): void {
@@ -20,15 +21,15 @@ it('fetches and caches an access token', function (): void {
         '*/oauth/generate_access_token' => Http::response([
             'data' => [
                 'access_token' => 'test-token-abc',
-                'expires_in'   => 3600,
+                'expires_in' => 3600,
             ],
         ]),
     ]);
 
     $token = $this->service->getAccessToken();
 
-    expect($token)->toBe('test-token-abc');
-    expect(Cache::get('fuel_finder_access_token'))->toBe('test-token-abc');
+    expect($token)->toBe('test-token-abc')
+        ->and(Cache::get('fuel_finder_access_token'))->toBe('test-token-abc');
 });
 
 it('returns cached token without hitting API', function (): void {
@@ -45,29 +46,29 @@ it('returns cached token without hitting API', function (): void {
 it('upserts stations from API batch response', function (): void {
     $apiStations = [
         [
-            'node_id'                        => 'abc123',
-            'trading_name'                   => 'Village Garage',
-            'brand_name'                     => 'Village Garage',
+            'node_id' => 'abc123',
+            'trading_name' => 'Village Garage',
+            'brand_name' => 'Village Garage',
             'is_same_trading_and_brand_name' => true,
-            'is_motorway_service_station'    => false,
+            'is_motorway_service_station' => false,
             'is_supermarket_service_station' => false,
-            'temporary_closure'              => false,
-            'permanent_closure'              => false,
-            'permanent_closure_date'         => null,
-            'public_phone_number'            => null,
-            'location'                       => [
+            'temporary_closure' => false,
+            'permanent_closure' => false,
+            'permanent_closure_date' => null,
+            'public_phone_number' => null,
+            'location' => [
                 'address_line_1' => '1 High Street',
                 'address_line_2' => null,
-                'city'           => 'London',
-                'county'         => null,
-                'country'        => 'England',
-                'postcode'       => 'SW1A 1AA',
-                'latitude'       => 51.5,
-                'longitude'      => -0.1,
+                'city' => 'London',
+                'county' => null,
+                'country' => 'England',
+                'postcode' => 'SW1A 1AA',
+                'latitude' => 51.5,
+                'longitude' => -0.1,
             ],
-            'amenities'    => [],
-            'opening_times'=> null,
-            'fuel_types'   => ['E10', 'E5'],
+            'amenities' => [],
+            'opening_times' => null,
+            'fuel_types' => ['E10', 'E5'],
         ],
     ];
 
@@ -83,32 +84,184 @@ it('upserts stations from API batch response', function (): void {
 
 it('tags supermarket stations during upsert', function (): void {
     $apiStations = [[
-        'node_id'                        => 'tesco1',
-        'trading_name'                   => 'TESCO',
-        'brand_name'                     => 'TESCO',
+        'node_id' => 'tesco1',
+        'trading_name' => 'TESCO',
+        'brand_name' => 'TESCO',
         'is_same_trading_and_brand_name' => true,
-        'is_motorway_service_station'    => false,
+        'is_motorway_service_station' => false,
         'is_supermarket_service_station' => true,
-        'temporary_closure'              => false,
-        'permanent_closure'              => false,
-        'permanent_closure_date'         => null,
-        'public_phone_number'            => null,
-        'location'                       => [
+        'temporary_closure' => false,
+        'permanent_closure' => false,
+        'permanent_closure_date' => null,
+        'public_phone_number' => null,
+        'location' => [
             'address_line_1' => '1 Tesco Way',
             'address_line_2' => null,
-            'city'           => 'Bristol',
-            'county'         => null,
-            'country'        => 'England',
-            'postcode'       => 'BS1 1AA',
-            'latitude'       => 51.45,
-            'longitude'      => -2.6,
+            'city' => 'Bristol',
+            'county' => null,
+            'country' => 'England',
+            'postcode' => 'BS1 1AA',
+            'latitude' => 51.45,
+            'longitude' => -2.6,
         ],
-        'amenities'    => [],
-        'opening_times'=> null,
-        'fuel_types'   => ['E10'],
+        'amenities' => [],
+        'opening_times' => null,
+        'fuel_types' => ['E10'],
     ]];
 
     $this->service->upsertStations($apiStations);
 
     expect(Station::find('tesco1')->is_supermarket)->toBeTrue();
 });
+
+// --- pollPrices ---
+
+it('inserts new price records and upserts current prices on poll', function (): void {
+    Cache::put('fuel_finder_access_token', 'tok', 3540);
+
+    Http::fake([
+        '*/pfs/fuel-prices*' => Http::sequence()
+            ->push([
+                [
+                    'node_id' => 'sta1',
+                    'fuel_prices' => [
+                        [
+                            'fuel_type' => 'E10',
+                            'price' => 142.9,
+                            'price_last_updated' => '2026-04-04T10:00:00.000Z',
+                            'price_change_effective_timestamp' => '2026-04-04T10:00:00.000Z',
+                        ],
+                    ],
+                ],
+            ])
+            ->push([]),
+    ]);
+
+    Station::factory()->create(['node_id' => 'sta1']);
+
+    $inserted = $this->service->pollPrices();
+
+    expect($inserted)->toBe(1)
+        ->and(StationPrice::count())->toBe(1)
+        ->and(StationPriceCurrent::where('station_id', 'sta1')->where('fuel_type', 'e10')->value('price_pence'))->toBe(14290);
+});
+
+it('does not insert a history row when price is unchanged', function (): void {
+    Cache::put('fuel_finder_access_token', 'tok', 3540);
+
+    Station::factory()->create(['node_id' => 'sta1']);
+
+    StationPriceCurrent::insert([
+        'station_id' => 'sta1',
+        'fuel_type' => 'e10',
+        'price_pence' => 14290,
+        'price_effective_at' => now()->subHour(),
+        'price_reported_at' => now()->subHour(),
+        'recorded_at' => now()->subHour(),
+    ]);
+
+    Http::fake([
+        '*/pfs/fuel-prices*' => Http::sequence()
+            ->push([
+                [
+                    'node_id' => 'sta1',
+                    'fuel_prices' => [
+                        [
+                            'fuel_type' => 'E10',
+                            'price' => 142.9,
+                            'price_last_updated' => '2026-04-04T10:00:00.000Z',
+                            'price_change_effective_timestamp' => '2026-04-04T10:00:00.000Z',
+                        ],
+                    ],
+                ],
+            ])
+            ->push([]),
+    ]);
+
+    $inserted = $this->service->pollPrices();
+
+    expect($inserted)->toBe(0)
+        ->and(StationPrice::count())->toBe(0);
+});
+
+it('inserts a history row when price has changed', function (): void {
+    Cache::put('fuel_finder_access_token', 'tok', 3540);
+
+    Station::factory()->create(['node_id' => 'sta1']);
+
+    StationPriceCurrent::insert([
+        'station_id' => 'sta1',
+        'fuel_type' => 'e10',
+        'price_pence' => 14290,
+        'price_effective_at' => now()->subHour(),
+        'price_reported_at' => now()->subHour(),
+        'recorded_at' => now()->subHour(),
+    ]);
+
+    Http::fake([
+        '*/pfs/fuel-prices*' => Http::sequence()
+            ->push([
+                [
+                    'node_id' => 'sta1',
+                    'fuel_prices' => [
+                        [
+                            'fuel_type' => 'E10',
+                            'price' => 139.9,
+                            'price_last_updated' => '2026-04-04T12:00:00.000Z',
+                            'price_change_effective_timestamp' => '2026-04-04T12:00:00.000Z',
+                        ],
+                    ],
+                ],
+            ])
+            ->push([]),
+    ]);
+
+    $inserted = $this->service->pollPrices();
+
+    expect($inserted)->toBe(1)
+        ->and(StationPrice::first()->price_pence)->toBe(13990)
+        ->and(StationPriceCurrent::where('station_id', 'sta1')->value('price_pence'))->toBe(13990);
+});
+
+it('skips unknown fuel types without error', function (): void {
+    Cache::put('fuel_finder_access_token', 'tok', 3540);
+
+    Station::factory()->create(['node_id' => 'sta1']);
+
+    Http::fake([
+        '*/pfs/fuel-prices*' => Http::sequence()
+            ->push([
+                [
+                    'node_id' => 'sta1',
+                    'fuel_prices' => [
+                        [
+                            'fuel_type' => 'UNKNOWN_FUEL',
+                            'price' => 150.0,
+                            'price_last_updated' => '2026-04-04T10:00:00.000Z',
+                            'price_change_effective_timestamp' => '2026-04-04T10:00:00.000Z',
+                        ],
+                    ],
+                ],
+            ])
+            ->push([]),
+    ]);
+
+    $inserted = $this->service->pollPrices();
+
+    expect($inserted)->toBe(0)
+        ->and(StationPrice::count())->toBe(0);
+});
+
+it('stops pagination when an empty batch is returned', function (): void {
+    Cache::put('fuel_finder_access_token', 'tok', 3540);
+
+    Http::fake([
+        '*/pfs/fuel-prices*' => Http::sequence()
+            ->push([])
+            ->push([['node_id' => 'never', 'fuel_prices' => []]]),
+    ]);
+
+    $this->service->pollPrices();
+
+    Http::assertSentCount(1);
+});