gemini-compat-endpoint

import { ModelStrategy } from "./ModelStrategy";
import { BaseGeminiStrategy } from "./BaseGeminiStrategy";
import { GeminiThinkingStrategy } from "./GeminiThinkingStrategy";
import { GeminiImageThinkingStrategy } from "./GeminiImageThinkingStrategy";
import { detectCapabilities } from "../capabilities";

export class StrategyFactory {
    static getStrategy(modelName: string): ModelStrategy {
        // gemini-3-pro-image-preview has strict thought-signature constraints for image parts.
        // In LM Studio's tool-call auto-continue loop, we must suppress vision promotion on the
        // tool-result replay turn to avoid mismatched signatures.
        if (modelName === "gemini-3-pro-image-preview") {
            return new GeminiImageThinkingStrategy();
        }

        const caps = detectCapabilities(modelName);
        if (caps.supportsThinking) {
            return new GeminiThinkingStrategy();
        }
        return new BaseGeminiStrategy();
    }
}