325 lines
8.1 KiB
C
325 lines
8.1 KiB
C
#include <stdlib.h>
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#include <string.h>
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#include <sqlite3.h>
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#include <cJSON.h>
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#include <logger.h>
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#include <database.h>
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#include <models/schedule.h>
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#include <models/junction_tag.h>
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#include <models/tag.h>
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static int
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db_update_insert(schedule_t *schedule, sqlite3_stmt *stmt)
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{
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int rc;
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uint16_t *periods_blob = schedule_periods_to_blob(schedule);
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int blob_size = (int)sizeof(uint16_t) * ((periods_blob[0] * 2) + 1);
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sqlite3_bind_int(stmt, 1, schedule->id);
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sqlite3_bind_blob(stmt, 2, schedule->uid, sizeof(uuid_t), SQLITE_STATIC);
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sqlite3_bind_text(stmt, 3, schedule->name, -1, SQLITE_STATIC);
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sqlite3_bind_blob(stmt, 4, periods_blob, blob_size, SQLITE_STATIC);
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rc = sqlite3_step(stmt);
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sqlite3_finalize(stmt);
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free(periods_blob);
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return rc != SQLITE_DONE;
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}
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static schedule_t*
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schedule_db_select_mapper(sqlite3_stmt *stmt)
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{
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const uint16_t *periods_blob;
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schedule_t *new_schedule = malloc(sizeof(schedule_t));
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for(int i = 0; i < sqlite3_column_count(stmt); i++)
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{
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const char *name = sqlite3_column_name(stmt, i);
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switch(name[0])
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{
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case 'i': // id
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new_schedule->id = sqlite3_column_int(stmt, i);
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break;
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case 'n': // name
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strncpy(new_schedule->name, (const char*)sqlite3_column_text(stmt, i), 127);
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new_schedule->name[127] = '\0';
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break;
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case 'p': // periods
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periods_blob = sqlite3_column_blob(stmt, i);
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new_schedule->periods_count = periods_blob[0];
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new_schedule->periods = malloc(sizeof(period_t) * periods_blob[0]);
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for(int i = 0; i < periods_blob[0]; ++i)
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{
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new_schedule->periods[i].start = periods_blob[(i * 2) + 1];
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new_schedule->periods[i].end = periods_blob[(i * 2) + 2];
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}
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break;
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case 'u': // uid
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uuid_copy(new_schedule->uid, (const unsigned char*)sqlite3_column_blob(stmt, i));
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break;
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default: // ignore columns not implemented
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break;
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}
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}
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return new_schedule;
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}
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static schedule_t**
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schedule_db_select(sqlite3_stmt *stmt)
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{
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schedule_t **all_schedules = malloc(sizeof(schedule_t*));
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int row = 0;
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while(true)
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{
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int s;
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s = sqlite3_step(stmt);
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if (s == SQLITE_ROW)
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{
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schedule_t *new_schedule = schedule_db_select_mapper(stmt);
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row++;
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all_schedules = (schedule_t**)realloc(all_schedules, sizeof(schedule_t*) * (row + 1));
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all_schedules[row - 1] = new_schedule;
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}
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else
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{
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if(s == SQLITE_DONE)
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{
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break;
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}
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else
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{
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LOG_ERROR("srror selecting schedules from database: %s\n", sqlite3_errstr(s));
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break;
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}
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}
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}
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sqlite3_finalize(stmt);
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all_schedules[row] = NULL;
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return all_schedules;
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}
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int
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schedule_save(schedule_t *schedule)
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{
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sqlite3_stmt *stmt;
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if(schedule->id)
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{
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sqlite3_prepare_v2(global_database, "UPDATE schedules SET uid = ?2, name = ?3, periods = ?4 WHERE id=?1;", -1, &stmt, NULL);
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}
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else
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{
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sqlite3_prepare_v2(global_database, "INSERT INTO schedules(uid, name, periods) values (?2, ?3, ?4);", -1, &stmt, NULL);
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}
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int result = db_update_insert(schedule, stmt);
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if(result)
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{
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if(schedule->id)
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{
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LOG_ERROR("error inserting data: %s\n", sqlite3_errmsg(global_database));
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}
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else
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{
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LOG_ERROR("error updating data: %s\n", sqlite3_errmsg(global_database));
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}
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}
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else
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{
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schedule->id = sqlite3_last_insert_rowid(global_database);
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}
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return result;
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}
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void
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schedule_free(schedule_t *schedule)
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{
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free(schedule->periods);
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free(schedule);
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}
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void
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schedule_free_list(schedule_t **schedules)
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{
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for(int i = 0; schedules[i] != NULL; ++i)
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{
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schedule_free(schedules[i]);
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}
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free(schedules);
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}
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uint16_t*
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schedule_periods_to_blob(schedule_t *schedule)
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{
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uint16_t *blob = malloc(sizeof(uint16_t) * ((schedule->periods_count * 2) + 1));
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blob[0] = schedule->periods_count;
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for(int i = 0; i < schedule->periods_count; i++)
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{
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blob[(i * 2) + 1] = schedule->periods[i].start;
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blob[(i * 2) + 2] = schedule->periods[i].end;
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}
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return blob;
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}
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cJSON*
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schedule_to_json(schedule_t *schedule)
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{
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cJSON *json = cJSON_CreateObject();
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cJSON *json_name = cJSON_CreateString(schedule->name);
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if(json_name == NULL)
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{
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cJSON_Delete(json);
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return NULL;
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}
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cJSON_AddItemToObject(json, "name", json_name);
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char uuid_str[UUID_STR_LEN];
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schedule_uid_unparse(schedule->uid, uuid_str);
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cJSON *json_id = cJSON_CreateString(uuid_str);
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if(json_name == NULL)
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{
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cJSON_Delete(json);
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return NULL;
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}
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cJSON_AddItemToObject(json, "id", json_id);
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cJSON *json_periods = cJSON_CreateArray();
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if(json_periods == NULL)
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{
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cJSON_Delete(json);
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return NULL;
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}
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cJSON_AddItemToObject(json, "periods", json_periods);
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for(int i = 0; i < schedule->periods_count; ++i)
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{
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cJSON *json_period = cJSON_CreateObject();
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if (json_period == NULL)
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{
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continue;
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}
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char start_str[8], end_str[8];
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period_t *period = &schedule->periods[i];
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sprintf(start_str, "%02d:%02d", period->start / 60, period->start % 60);
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sprintf(end_str, "%02d:%02d", period->end / 60, period->end % 60);
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cJSON *json_period_start = cJSON_CreateString(start_str);
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if (json_period_start == NULL)
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{
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LOG_DEBUG("failed to add start period from string '%s'\n", start_str);
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cJSON_Delete(json_period);
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continue;
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}
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cJSON_AddItemToObject(json_period, "start", json_period_start);
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cJSON *json_period_end = cJSON_CreateString(end_str);
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if (json_period_end == NULL)
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{
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LOG_DEBUG("failed to add end period from string '%s'\n", end_str);
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cJSON_Delete(json_period);
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continue;
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}
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cJSON_AddItemToObject(json_period, "end", json_period_end);
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cJSON_AddItemToArray(json_periods, json_period);
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}
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cJSON *json_tags = cJSON_CreateArray();
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int *tags_ids = junction_tag_get_tags_for_schedule_id(schedule->id);
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if(tags_ids != NULL)
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{
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for(int i = 0; tags_ids[i] != 0; ++i)
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{
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char *tag = tag_get_tag(tags_ids[i]);
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if(tag == NULL)
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{
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continue;
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}
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cJSON *json_tag = cJSON_CreateString(tag);
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if (json_tag == NULL)
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{
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LOG_DEBUG("failed to add tag from string '%s'\n", tag);
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free(tag);
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continue;
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}
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cJSON_AddItemToArray(json_tags, json_tag);
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free(tag);
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}
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free(tags_ids);
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}
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cJSON_AddItemToObject(json, "tags", json_tags);
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return json;
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}
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schedule_t**
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schedule_get_all()
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{
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sqlite3_stmt *stmt;
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sqlite3_prepare_v2(global_database, "SELECT * FROM schedules;", -1, &stmt, NULL);
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return schedule_db_select(stmt);
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}
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int
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schedule_uid_parse(const char *uid_str, uuid_t result)
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{
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if(strcmp("off", uid_str) == 0)
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{
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memset(result, 0, sizeof(uuid_t));
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memcpy(result, "off", 3);
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return 0;
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}
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if(strcmp("on", uid_str) == 0)
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{
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memset(result, 0, sizeof(uuid_t));
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memcpy(result, "on", 2);
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return 0;
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}
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if(uuid_parse(uid_str, result))
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{
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return 1;
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}
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return 0;
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}
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void
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schedule_uid_unparse(const uuid_t uid, char *result)
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{
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uuid_t tmp_uuid;
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memset(tmp_uuid, 0, sizeof(uuid_t));
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memcpy(tmp_uuid, "off", 3);
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if(uuid_compare(uid, tmp_uuid) == 0)
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{
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strcpy(result, "off");
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return;
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}
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memset(tmp_uuid, 0, sizeof(uuid_t));
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memcpy(tmp_uuid, "on", 2);
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if(uuid_compare(uid, tmp_uuid) == 0)
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{
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strcpy(result, "on");
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return;
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}
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uuid_unparse(uid, result);
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}
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