package com.vincent.rsf.server.ai.service;

import com.vincent.rsf.server.ai.config.AiProperties;
import com.vincent.rsf.server.system.entity.AiParam;
import com.vincent.rsf.server.system.service.AiParamService;
import lombok.Data;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.List;

@Service
public class AiRuntimeConfigService {

    @Resource
    private AiProperties aiProperties;
    @Resource
    private AiParamService aiParamService;

    public List<ModelRuntimeConfig> listEnabledModels() {
        List<ModelRuntimeConfig> output = new ArrayList<>();
        try {
            List<AiParam> list = aiParamService.listEnabledModels();
            for (AiParam item : list) {
                output.add(toRuntimeConfig(item));
            }
        } catch (Exception ignore) {
        }
        if (!output.isEmpty()) {
            return output;
        }
        for (AiProperties.ModelConfig model : aiProperties.getEnabledModels()) {
            ModelRuntimeConfig config = new ModelRuntimeConfig();
            config.setCode(model.getCode());
            config.setName(model.getName());
            config.setProvider(model.getProvider());
            config.setSystemPrompt(aiProperties.getSystemPrompt());
            config.setMaxContextMessages(aiProperties.getMaxContextMessages());
            config.setEnabled(model.getEnabled());
            output.add(config);
        }
        return output;
    }

    public ModelRuntimeConfig resolveModel(String modelCode) {
        try {
            AiParam aiParam;
            if (modelCode == null || modelCode.trim().isEmpty()) {
                aiParam = aiParamService.getDefaultModel();
            } else {
                aiParam = aiParamService.getEnabledModel(modelCode);
            }
            if (aiParam != null) {
                return toRuntimeConfig(aiParam);
            }
        } catch (Exception ignore) {
        }
        String targetCode = modelCode;
        if (targetCode == null || targetCode.trim().isEmpty()) {
            targetCode = aiProperties.resolveDefaultModelCode();
        }
        for (AiProperties.ModelConfig model : aiProperties.getEnabledModels()) {
            if (targetCode.equals(model.getCode())) {
                ModelRuntimeConfig config = new ModelRuntimeConfig();
                config.setCode(model.getCode());
                config.setName(model.getName());
                config.setProvider(model.getProvider());
                config.setSystemPrompt(aiProperties.getSystemPrompt());
                config.setMaxContextMessages(aiProperties.getMaxContextMessages());
                config.setEnabled(model.getEnabled());
                return config;
            }
        }
        ModelRuntimeConfig config = new ModelRuntimeConfig();
        config.setCode(aiProperties.resolveDefaultModelCode());
        config.setName(aiProperties.resolveDefaultModelCode());
        config.setProvider("mock");
        config.setSystemPrompt(aiProperties.getSystemPrompt());
        config.setMaxContextMessages(aiProperties.getMaxContextMessages());
        config.setEnabled(true);
        return config;
    }

    public String resolveDefaultModelCode() {
        return resolveModel(null).getCode();
    }

    private ModelRuntimeConfig toRuntimeConfig(AiParam aiParam) {
        ModelRuntimeConfig config = new ModelRuntimeConfig();
        config.setCode(aiParam.getModelCode());
        config.setName(aiParam.getName());
        config.setProvider(aiParam.getProvider());
        config.setChatUrl(aiParam.getChatUrl());
        config.setApiKey(aiParam.getApiKey());
        config.setModelName(aiParam.getModelName());
        config.setSystemPrompt(aiParam.getSystemPrompt() == null || aiParam.getSystemPrompt().trim().isEmpty()
                ? aiProperties.getSystemPrompt()
                : aiParam.getSystemPrompt());
        config.setMaxContextMessages(aiParam.getMaxContextMessages() == null || aiParam.getMaxContextMessages() <= 0
                ? aiProperties.getMaxContextMessages()
                : aiParam.getMaxContextMessages());
        config.setEnabled(Integer.valueOf(1).equals(aiParam.getStatus()));
        return config;
    }

    @Data
    public static class ModelRuntimeConfig {
        private String code;
        private String name;
        private String provider;
        private String chatUrl;
        private String apiKey;
        private String modelName;
        private String systemPrompt;
        private Integer maxContextMessages;
        private Boolean enabled;
    }
}