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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sqlite3.h>
const char *filename = "./library.db";
static int callback(void *NotUsed, int argc, char **argv, char **azColName)
{
int i;
for(i = 0; i < argc; i++) {
printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
}
printf("\n");
return 0;
}
void exit_with_error(sqlite3 *db, const char *msg)
{
fprintf(stderr, "%s: %s\n", msg, sqlite3_errmsg(db));
sqlite3_close(db);
exit(69);
}
void select_from_table(sqlite3 *db, char *tblName, char *qp)
{
char *sql;
int rc;
const unsigned char *name, *value, *status;
const char *type;
char *query_param = malloc(strlen(qp) + 2);
int id;
if (!strcmp(tblName, "anime")) {
type = "Episode";
sql = "SELECT * FROM anime WHERE NAME LIKE ?1 ORDER BY ID;";
} else if (!strcmp(tblName, "manga")) {
type = "Chapter";
sql = "SELECT * FROM manga WHERE NAME LIKE ?1 ORDER BY ID;";
} else {
fprintf(stderr, "table does not exist...\n");
sqlite3_close(db);
exit(69);
}
sqlite3_stmt *stmt;
snprintf(query_param, strlen(qp) + 2, "%s%%", qp);
rc = sqlite3_prepare_v2(db, sql, -1, &stmt, 0);
if (rc != SQLITE_OK) {
exit_with_error(db, "failure fetching data: ");
}
sqlite3_bind_text(stmt, 1, query_param, -1, SQLITE_TRANSIENT);
while(sqlite3_step(stmt) == SQLITE_ROW) {
id = sqlite3_column_int(stmt, 0);
name = sqlite3_column_text(stmt, 1);
value = sqlite3_column_text(stmt, 2);
status = sqlite3_column_text(stmt, 3);
printf("%03d: %s, %s %s, %s\n", id, name, type, value, status);
}
sqlite3_finalize(stmt);
free(query_param);
}
void update_entry(sqlite3 *db, char *tblName, char *qp, char *value, char *status)
{
char *sql;
int rc;
sqlite3_stmt *stmt;
if (!strcmp(tblName, "anime")) {
if (status == NULL) {
sql = "UPDATE anime SET EPISODE=?1 WHERE NAME=?2;";
} else {
sql = "UPDATE anime SET EPISODE=?1, STATUS=?2 WHERE NAME=?3;";
}
} else if (!strcmp(tblName, "manga")) {
if (status == NULL) {
sql = "UPDATE manga SET CHAPTER=?1 WHERE NAME=?2;";
} else {
sql = "UPDATE manga SET CHAPTER=?1, STATUS=?2 WHERE NAME=?3;";
}
} else {
fprintf(stderr, "table does not exist...\n");
sqlite3_close(db);
exit(69);
}
rc = sqlite3_prepare_v2(db, sql, -1, &stmt, 0);
if (rc != SQLITE_OK) {
exit_with_error(db, "failure fetching data: ");
}
if (status == NULL) {
sqlite3_bind_text(stmt, 1, value, -1, SQLITE_STATIC);
sqlite3_bind_text(stmt, 2, qp, -1, SQLITE_STATIC);
} else {
sqlite3_bind_text(stmt, 1, value, -1, SQLITE_STATIC);
sqlite3_bind_text(stmt, 2, status, -1, SQLITE_STATIC);
sqlite3_bind_text(stmt, 3, qp, -1, SQLITE_STATIC);
}
rc = sqlite3_step(stmt);
sqlite3_finalize(stmt);
}
void add_entry(sqlite3 *db, char *tblName, char *name, char *value, char *status)
{
char *sql;
int rc;
sqlite3_stmt *stmt;
if (!strcmp(tblName, "anime")) {
sql = "INSERT INTO anime (NAME, EPISODE, STATUS) VALUES (?1, ?2, ?3);";
} else if (!strcmp(tblName, "manga")) {
sql = "INSERT INTO manga (NAME, CHAPTER, STATUS) VALUES (?1, ?2, ?3);";
} else {
fprintf(stderr, "table does not exist...\n");
sqlite3_close(db);
exit(69);
}
rc = sqlite3_prepare_v2(db, sql, -1, &stmt, 0);
if (rc != SQLITE_OK) {
exit_with_error(db, "failure fetching data: ");
}
sqlite3_bind_text(stmt, 1, name, -1, SQLITE_STATIC);
sqlite3_bind_text(stmt, 2, value, -1, SQLITE_STATIC);
sqlite3_bind_text(stmt, 3, status, -1, SQLITE_STATIC);
rc = sqlite3_step(stmt);
sqlite3_finalize(stmt);
}
int main(int argc, char **argv)
{
if (argc < 4) {
fprintf(stderr, "missing argument...\n");
exit(69);
}
char *mode, *target, *name, *value, *status;
mode = argv[1];
target = argv[2];
name = argv[3];
sqlite3 *db;
int rc;
rc = sqlite3_open(filename, &db);
if (rc) {
exit_with_error(db, "Can't open database: ");
}
if (!strcmp(mode, "get")) {
select_from_table(db, target, name);
} else if (!strcmp(mode, "set")) {
if (argc < 5) {
fprintf(stderr, "missing argument...\n");
sqlite3_close(db);
exit(69);
}
if (argc == 5) {
value = argv[4];
update_entry(db, target, name, value, NULL);
} else if (argc == 6) {
value = argv[4];
status = argv[5];
update_entry(db, target, name, value, status);
}
} else if (!strcmp(mode, "add")) {
if (argc < 6) {
fprintf(stderr, "missing argument...\n");
sqlite3_close(db);
exit(69);
}
value = argv[4];
status = argv[5];
add_entry(db, target, name, value, status);
} else {
fprintf(stderr, "unknown option...\n");
sqlite3_close(db);
exit(69);
}
sqlite3_close(db);
return 0;
}
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