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read schema files for website

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Signed-off-by: Peter Siegmund <developer@mars3142.org>
This commit is contained in:
Peter Siegmund
2026-01-18 16:26:05 +01:00
parent 3f32b791b7
commit 3d7de05614
4 changed files with 98 additions and 44 deletions
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39
firmware/components/api-server/src/api_handlers.c
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@@ -430,14 +430,41 @@ esp_err_t api_schema_get_handler(httpd_req_t *req)
ESP_LOGI(TAG, "Requested schema: %s", filename);
// TODO: Read actual schema file from storage
// For now, return sample CSV data
// Schema-Datei lesen
char path[128];
snprintf(path, sizeof(path), "%s", filename);
int line_count = 0;
extern char **read_lines_filtered(const char *filename, int *out_count);
extern void free_lines(char **lines, int count);
char **lines = read_lines_filtered(path, &line_count);
set_cors_headers(req);
httpd_resp_set_type(req, "text/csv");
const char *sample_csv = "255,240,220,0,100,250\n"
"255,230,200,0,120,250\n"
"255,220,180,0,140,250\n";
return httpd_resp_sendstr(req, sample_csv);
if (!lines || line_count == 0)
{
return httpd_resp_sendstr(req, "");
}
// Gesamtlänge berechnen
size_t total_len = 0;
for (int i = 0; i < line_count; ++i)
total_len += strlen(lines[i]) + 1;
char *csv = malloc(total_len + 1);
char *p = csv;
for (int i = 0; i < line_count; ++i)
{
size_t l = strlen(lines[i]);
memcpy(p, lines[i], l);
p += l;
*p++ = '\n';
}
*p = '\0';
free_lines(lines, line_count);
esp_err_t res = httpd_resp_sendstr(req, csv);
free(csv);
return res;
}
esp_err_t api_schema_post_handler(httpd_req_t *req)