#include "app_cmd_parser.h"
#include <string.h>
#include <ctype.h>

static int parse_x_v_addr(const char *line, uint8_t *addr)
{
    if (!line || !addr) return 0;
    if (!(line[0] == 'x' || line[0] == 'X')) return 0;
    if (!isdigit((unsigned char)line[1]) || !isdigit((unsigned char)line[2])) return 0;
    if (!(line[3] == 'v' || line[3] == 'V')) return 0;
    if (line[4] != '\0') return 0;

    *addr = (uint8_t)((line[1] - '0') * 10 + (line[2] - '0'));
    return 1;
}

static int find_payload_pos(const char *line)
{
    const char *p = strchr(line, ':');
    if (!p) return -1;
    return (int)(p - line + 1);
}

int app_cmd_parse_line(app_cmd_src_t src, const char *line, app_job_t *job)
{
    uint8_t addr = 0;
    int payload_pos;

    if (!line || !job) return 0;

    memset(job, 0, sizeof(*job));
    job->src = src;

    if (line[0] != 'x' && line[0] != 'X') {
        job->type = APP_JOB_LOCAL_EXEC;
        strncpy(job->line, line, sizeof(job->line) - 1);
        job->line[sizeof(job->line) - 1] = '\0';
        return 1;
    }

    if (parse_x_v_addr(line, &addr)) {
        job->type = APP_JOB_SCAN_ADDR;
        job->addr = addr;
        strncpy(job->line, line, sizeof(job->line) - 1);
        job->line[sizeof(job->line) - 1] = '\0';
        return 1;
    }

    payload_pos = find_payload_pos(line);
    if (payload_pos >= 0) {
        const char *payload = &line[payload_pos];

        if ((payload[0] == 'o' || payload[0] == 'O') &&
            (payload[1] == 'w' || payload[1] == 'W')) {
            job->type = APP_JOB_PROTO_OW;
            strncpy(job->line, line, sizeof(job->line) - 1);
            job->line[sizeof(job->line) - 1] = '\0';
            return 1;
        }

        if ((payload[0] == 'o' || payload[0] == 'O') &&
            (payload[1] == 'r' || payload[1] == 'R')) {
            job->type = APP_JOB_PROTO_OR;
            strncpy(job->line, line, sizeof(job->line) - 1);
            job->line[sizeof(job->line) - 1] = '\0';
            return 1;
        }
    }

    job->type = APP_JOB_FORWARD_LINE;
    strncpy(job->line, line, sizeof(job->line) - 1);
    job->line[sizeof(job->line) - 1] = '\0';
    return 1;
}