package ollama

import (
	"bytes"
	"encoding/json"
	"errors"
	"fmt"
	"net/http"
)

type PullModelRequest struct {
	Model    string `json:"name"`
	Insecure *bool  `json:"insecure,omitempty"`
	Stream   *bool  `json:"stream,omitempty"`
}

type PullModelResponse struct {
	Status string `json:"status"`
}

func (o Ollama) PullModel(reqBody PullModelRequest) (PullModelResponse, int, error) {
	reqBodyBytes, err := json.Marshal(reqBody)
	if err != nil {
		return PullModelResponse{}, -1, err
	}

	req, err := http.NewRequest(http.MethodPost, fmt.Sprintf("%s/pull", o.baseUrl), bytes.NewReader(reqBodyBytes))
	if err != nil {
		return PullModelResponse{}, -1, err
	}

	for key, val := range o.customHeaders {
		req.Header.Set(key, val)
	}
	req.Header.Set("Content-Type", "application/json")

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		return PullModelResponse{}, -1, err
	}
	defer resp.Body.Close()

	if resp.StatusCode != 200 {
		return PullModelResponse{}, resp.StatusCode, errors.New("status code is not 200")
	}

	var respBody PullModelResponse
	if err := json.NewDecoder(resp.Body).Decode(&respBody); err != nil {
		return PullModelResponse{}, -1, err
	}
	return respBody, resp.StatusCode, nil
}