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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace AqwSocketClient\Interfaces; |
| 6 | |
| 7 | use AqwSocketClient\Enums\ScriptResult; |
| 8 | use AqwSocketClient\Scripts\ClientContext; |
| 9 | |
| 10 | /** |
| 11 | * Represents a single unit of logic to be executed against a {@see AqwSocketClient\Interfaces\ClientInterface}. |
| 12 | * |
| 13 | * Scripts are composable — a script can be a single atomic step or a |
| 14 | * sequence of other scripts. The client drives the execution loop, |
| 15 | * advancing to the next script only when the current one is done. |
| 16 | */ |
| 17 | interface ScriptInterface |
| 18 | { |
| 19 | /** |
| 20 | * Called once by the client before the event loop begins. |
| 21 | * |
| 22 | * Returns the first command to send, or null if no immediate action is needed. |
| 23 | * Default implementation in AbstractScript returns null. |
| 24 | * |
| 25 | * @param ClientContext $context Shared session state. |
| 26 | */ |
| 27 | public function start(ClientContext $context): ?CommandInterface; |
| 28 | |
| 29 | /** |
| 30 | * Handles an incoming event. |
| 31 | * |
| 32 | * Returns at most one command to send. The client queues it and sends it |
| 33 | * on the next available tick. |
| 34 | * |
| 35 | * @param EventInterface $event The incoming event. |
| 36 | * @param ClientContext $context Shared session state. |
| 37 | * |
| 38 | * @return ?CommandInterface A command to dispatch, or null. |
| 39 | */ |
| 40 | public function handle(EventInterface $event, ClientContext $context): ?CommandInterface; |
| 41 | |
| 42 | /** |
| 43 | * Returns the list of event types this script is interested in. |
| 44 | * |
| 45 | * @return array<class-string<EventInterface>> |
| 46 | */ |
| 47 | public function handles(): array; |
| 48 | |
| 49 | /** |
| 50 | * Signals whether this script has completed its work. |
| 51 | * |
| 52 | * Checked by the client after every {@see AqwSocketClient\Interfaces\ScriptInterface::handle()} call. |
| 53 | * When true, the client stops driving this script and moves on. |
| 54 | */ |
| 55 | public function isDone(): bool; |
| 56 | |
| 57 | /** |
| 58 | * Returns the final execution result of the script. |
| 59 | * |
| 60 | * Should only be relied upon once {@see AqwSocketClient\Interfaces\ScriptInterface::isDone()} returns true. |
| 61 | */ |
| 62 | public function result(): ScriptResult; |
| 63 | |
| 64 | /** |
| 65 | * Marks the script as failed. |
| 66 | */ |
| 67 | public function failed(): void; |
| 68 | |
| 69 | /** |
| 70 | * Marks the script as disconnected. |
| 71 | */ |
| 72 | public function disconnected(): void; |
| 73 | |
| 74 | /** |
| 75 | * Marks the script as successfully completed. |
| 76 | */ |
| 77 | public function success(): void; |
| 78 | } |