package officeconvertclient

import (
	"context"
	"fmt"
	"io"
	"net/http"
	"os"
)

// UploadPPTX uploads a local PPTX using the presigned URL from CreateConversion.
func (c *Client) UploadPPTX(
	ctx context.Context,
	uploadURL string,
	localPPTXPath string,
) error {
	file, err := os.Open(localPPTXPath)
	if err != nil {
		return fmt.Errorf("open pptx: %w", err)
	}
	defer file.Close()

	return c.uploadReader(ctx, uploadURL, file)
}

func (c *Client) uploadReader(ctx context.Context, uploadURL string, body io.Reader) error {
	req, err := http.NewRequestWithContext(ctx, http.MethodPut, uploadURL, body)
	if err != nil {
		return fmt.Errorf("build upload request: %w", err)
	}
	req.Header.Set("Content-Type", "application/vnd.openxmlformats-officedocument.presentationml.presentation")

	res, err := c.httpClient.Do(req)
	if err != nil {
		return fmt.Errorf("upload pptx: %w", err)
	}
	defer res.Body.Close()

	if res.StatusCode < 200 || res.StatusCode >= 300 {
		return fmt.Errorf("upload failed with status %d", res.StatusCode)
	}
	return nil
}