package me.zacharias.chat.api;

import me.zacharias.chat.api.payload.request.NewQurryResponceHook;
import me.zacharias.chat.api.payload.request.NewToolRequest;
import me.zacharias.chat.core.Core;
import me.zacharias.chat.core.GlobalObjects;
import me.zacharias.chat.core.PrintMessageHandler;
import me.zacharias.chat.ollama.OllamaObject;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

@SpringBootApplication
public class APIApplication {
    public static void start(){
        ConfigurableApplicationContext ctx = SpringApplication.run(APIApplication.class);

    }

    public static void main(String[] args) {
        SpringApplication.run(APIApplication.class, args);
    }

    private static APIApplication instance;
    private final Map<String, APITool> tools = new HashMap<>();
    private final ArrayList<QuerryResponceEndpoint> querryResponceEndpoints = new ArrayList<>();
    private final Core core;

    WebClient webClient = WebClient.create();

    public APIApplication()
    {
        if(instance != null)
            throw new IllegalStateException("APIApplication is already running!");

        instance = this;

        if(GlobalObjects.getObject("core") instanceof Core coreInstance) {
            this.core = coreInstance;
        } else {
            this.core = new Core(new PrintMessageHandler() {
                @Override
                public void printMessage(String message) {
                    synchronized (querryResponceEndpoints) {
                        querryResponceEndpoints.forEach(endpoint -> {
                            webClient.post().uri(endpoint.getUrl()).bodyValue(message).retrieve()
                                .onStatus(
                                    status -> status.is4xxClientError() || status.is5xxServerError() || status.isError(),
                                        clientResponse -> {
                                                return clientResponse.bodyToMono(String.class).flatMap(body -> {
                                                    endpoint.sendError("Failed to send message for qurry response");
                                                    querryResponceEndpoints.remove(endpoint);
                                                    return Mono.error(new RuntimeException("Webhook call failed with status: " + clientResponse.statusCode()));
                                                });
                                            })
                                    .toBodilessEntity()
                                    .doOnError(e -> {

                                    })
                                    .subscribe();
                        });
                    }
                }

                @Override
                public boolean color() {
                    return false;
                }
            });

            core.setOllamaObject(OllamaObject.builder()
                    .setModel("qwen3:8b")
                    .keep_alive(10)
                    .build());
        }
    }

    public static APIApplication getInstance() {
        return instance;
    }

    public boolean addTool(String name, NewToolRequest request) {
        if (name == null || name.isEmpty()) {
            throw new IllegalArgumentException("Tool name cannot be null or empty");
        }
        if (tools.containsKey(name)) {
            return false; // Tool with this name already exists
        }

        APITool tool = new APITool(request);
        tools.put(name, tool);
        core.addTool(tool, Core.Source.API);
        return true;
    }

    public boolean removeTool(String name) {
        if(name == null || name.isEmpty()) {
            throw new IllegalArgumentException("Tool name cannot be null or empty");
        }
        if (!tools.containsKey(name)) {
            return false; // Tool with this name does not exist
        }
        APITool tool = tools.remove(name);
        core.removeTool(tool.name());
        return true;
    }

    public void addQurryResponseHook(NewQurryResponceHook request) {
        if (request == null || request.getUrl() == null || request.getUrl().isEmpty()) {
            throw new IllegalArgumentException("Request and URL cannot be null or empty");
        }
        QuerryResponceEndpoint endpoint = new QuerryResponceEndpoint(request.getUrl(), request.getErrorUrl());
        synchronized (querryResponceEndpoints) {
            querryResponceEndpoints.add(endpoint);
        }
    }

    public Core getCore() {
        return core;
    }
}