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/*
 * Copyright (c) 2022 Egor Tensin <egor@tensin.name>
 * This file is part of the "cimple" project.
 * For details, see https://github.com/egor-tensin/cimple.
 * Distributed under the MIT License.
 */

#include "client.h"

#include "cmd_line.h"
#include "compiler.h"
#include "const.h"
#include "json_rpc.h"
#include "log.h"
#include "net.h"
#include "protocol.h"
#include "run_queue.h"

#include <stdlib.h>
#include <string.h>

struct client {
    int dummy;
};

int client_create(struct client** _client) {
    int ret = 0;

    struct client* client = malloc(sizeof(struct client));
    if (!client) {
        log_errno("malloc");
        return -1;
    }

    *_client = client;
    return ret;
}

void client_destroy(struct client* client) {
    free(client);
}

static int make_request(struct jsonrpc_request** request, int argc, const char** argv) {
    if (argc < 1) {
        exit_with_usage_err("no action specified");
        return -1;
    }

    if (!strcmp(argv[0], CMD_QUEUE_RUN)) {
        if (argc != 3)
            return -1;

        struct run* run = NULL;
        int ret = run_queued(&run, argv[1], argv[2]);
        if (ret < 0)
            return ret;

        ret = request_create_queue_run(request, run);
        run_destroy(run);
        return ret;
    } else if (!strcmp(argv[0], CMD_GET_RUNS)) {
        if (argc != 1)
            return -1;
        return request_create_get_runs(request);
    }

    return -1;
}

int client_main(
    UNUSED const struct client* client,
    const struct settings* settings,
    int argc,
    const char** argv
) {
    int ret = 0;

    struct jsonrpc_request* request = NULL;
    ret = make_request(&request, argc, argv);
    if (ret < 0) {
        exit_with_usage_err("invalid request");
        return ret;
    }

    ret = net_connect(settings->host, settings->port);
    if (ret < 0)
        goto free_request;
    int fd = ret;

    ret = jsonrpc_request_send(request, fd);
    if (ret < 0)
        goto close;

    struct jsonrpc_response* response = NULL;
    ret = jsonrpc_response_recv(&response, fd);
    if (ret < 0)
        goto close;

    const char* response_str = jsonrpc_response_to_string(response);
    if (response_str) {
        if (jsonrpc_response_is_error(response))
            ret = -1;
        printf("%s", response_str);
    } else {
        log_err("no response\n");
    }
    goto free_response;

free_response:
    jsonrpc_response_destroy(response);

close:
    net_close(fd);

free_request:
    jsonrpc_request_destroy(request);

    return ret;
}