#pragma once
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "esp_err.h"

// Small blocking HTTP/1.x GET client on raw sockets. Unlike esp_http_client it
// happily streams bodies with no Content-Length (MJPEG cameras, HTTP/1.0 servers),
// de-chunks chunked bodies and follows a few redirects.
typedef struct {
    int fd;
    int status;
    bool chunked;
    int64_t content_length;   // -1 when unknown
    int64_t body_read;
    char content_type[80];
    char host[128];
    uint16_t port;
    uint8_t *buf;             // receive buffer
    size_t cap, len, pos;
    int64_t chunk_left;
    bool eof;
    int rx_timeout_ms;
} httpstream_t;

#define HTTPSTREAM_EOF 0
#define HTTPSTREAM_ERR (-1)
#define HTTPSTREAM_TIMEOUT (-2)

esp_err_t httpstream_open(httpstream_t *s, const char *url, const char *user_agent,
                          int connect_timeout_ms, int rx_timeout_ms);
// Returns bytes copied (>0), HTTPSTREAM_EOF, HTTPSTREAM_ERR or HTTPSTREAM_TIMEOUT.
int httpstream_read(httpstream_t *s, uint8_t *out, size_t n);
void httpstream_close(httpstream_t *s);