#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sqlite3.h>
#include <ctype.h>
#include "bbs.h"

extern struct bbs_config conf;
extern struct user_record *gUser;
struct bbs_list_entry_t {
	int id;
	char *bbsname;
	char *sysopname;
	char *telnet;
	int owner;
};

int add_bbs(struct bbs_list_entry_t *new_entry) {
	char *create_sql = "CREATE TABLE IF NOT EXISTS bbslist ("
	                   "id INTEGER PRIMARY KEY,"
	                   "bbsname TEXT,"
	                   "sysop TEXT,"
	                   "telnet TEXT,"
	                   "owner INTEGER);";

	char *insert_sql = "INSERT INTO bbslist (bbsname, sysop, telnet, owner) VALUES(?,?, ?, ?)";

	char bbsname[19];
	char sysop[17];
	char telnet[39];
	char buffer[PATH_MAX];
	char c;
	char *err_msg = 0;
	sqlite3 *db;
	sqlite3_stmt *res;
	int rc;
	int id;

	s_printf("\e[2J\e[1;1H");

	s_printf(get_string(28));
	s_readstring(bbsname, 18);

	s_printf(get_string(29));
	s_readstring(sysop, 16);

	s_printf(get_string(30));
	s_readstring(telnet, 38);

	s_printf(get_string(31));
	s_printf(get_string(32));
	s_printf(get_string(33), bbsname);
	s_printf(get_string(34), sysop);
	s_printf(get_string(35), telnet);
	s_printf(get_string(36));
	s_printf(get_string(37));

	c = s_getc();
	if (tolower(c) == 'y') {
		snprintf(buffer, PATH_MAX, "%s/bbslist.sq3", conf.bbs_path);

		rc = sqlite3_open(buffer, &db);

		if (rc != SQLITE_OK) {
			dolog("Cannot open database: %s", sqlite3_errmsg(db));
			return 0;
		}
		sqlite3_busy_timeout(db, 5000);
		rc = sqlite3_exec(db, create_sql, 0, 0, &err_msg);
		if (rc != SQLITE_OK) {

			dolog("SQL error: %s", err_msg);

			sqlite3_free(err_msg);
			sqlite3_close(db);

			return 0;
		}

		rc = sqlite3_prepare_v2(db, insert_sql, -1, &res, 0);

		if (rc == SQLITE_OK) {
			sqlite3_bind_text(res, 1, bbsname, -1, 0);
			sqlite3_bind_text(res, 2, sysop, -1, 0);
			sqlite3_bind_text(res, 3, telnet, -1, 0);
			sqlite3_bind_int(res, 4, gUser->id);
		} else {
			dolog("Failed to execute statement: %s", sqlite3_errmsg(db));
			sqlite3_close(db);
			return 0;
		}

		rc = sqlite3_step(res);

		if (rc != SQLITE_DONE) {

			dolog("execution failed: %s", sqlite3_errmsg(db));
			sqlite3_finalize(res);
			sqlite3_close(db);
			return 0;
		}
		id = sqlite3_last_insert_rowid(db);

		sqlite3_finalize(res);
		sqlite3_close(db);
		s_printf(get_string(38));

		if (new_entry != NULL) {
			new_entry->id = id;
			new_entry->bbsname = strdup(bbsname);
			new_entry->sysopname = strdup(sysop);
			new_entry->telnet = strdup(telnet);
			new_entry->owner = gUser->id;
		}
		return 1;
	} else {
		s_printf(get_string(39));
		return 0;
	}
}

int delete_bbs(int id) {
	char buffer[PATH_MAX];
	sqlite3 *db;
	sqlite3_stmt *res;
	int rc;
	char *sql = "SELECT bbsname FROM bbslist WHERE id=? and owner=?";
	char *dsql = "DELETE FROM bbslist WHERE id=?";
	char c;

	s_printf("\e[2J\e[1;1H");

	snprintf(buffer, PATH_MAX, "%s/bbslist.sq3", conf.bbs_path);

	rc = sqlite3_open(buffer, &db);

	if (rc != SQLITE_OK) {
		return 0;
	}
	sqlite3_busy_timeout(db, 5000);
	rc = sqlite3_prepare_v2(db, sql, -1, &res, 0);
	if (rc == SQLITE_OK) {
		sqlite3_bind_int(res, 1, id);
		sqlite3_bind_int(res, 2, gUser->id);
	} else {
		sqlite3_close(db);
		s_printf(get_string(41));
		return 0;
	}
	if (sqlite3_step(res) == SQLITE_ROW) {
		s_printf(get_string(42), sqlite3_column_text(res, 0));
		sqlite3_finalize(res);
		c = s_getc();
		if (tolower(c) == 'y') {
			rc = sqlite3_prepare_v2(db, dsql, -1, &res, 0);
			if (rc == SQLITE_OK) {
				sqlite3_bind_int(res, 1, id);
			} else {
				sqlite3_close(db);
				s_printf(get_string(41));
				return 0;
			}
			sqlite3_step(res);
			s_printf(get_string(43));
			sqlite3_finalize(res);
			sqlite3_close(db);
			return 1;
		} else {
			s_printf(get_string(39));
			sqlite3_close(db);
			return 0;
		}
	} else {
		sqlite3_finalize(res);
		s_printf(get_string(44));
		sqlite3_close(db);
		return 0;
	}
}

void bbs_list() {
	int i;
	int redraw = 1;
	int start = 0;
	int selected = 0;
	char c;
	char buffer[PATH_MAX];
	sqlite3 *db;
	sqlite3_stmt *res;
	int rc;
	char *sql = "SELECT id,bbsname,sysop,telnet FROM bbslist";
	struct ptr_vector entries;
	int entrycount;
	struct bbs_list_entry_t *newentry;

	init_ptr_vector(&entries);
	while (1) {
		entrycount = 0;
		snprintf(buffer, PATH_MAX, "%s/bbslist.sq3", conf.bbs_path);

		rc = sqlite3_open(buffer, &db);

		if (rc != SQLITE_OK) {
			dolog("Cannot open database: %s", sqlite3_errmsg(db));
			return;
		}

		sqlite3_busy_timeout(db, 5000);
		rc = sqlite3_prepare_v2(db, sql, -1, &res, 0);
		if (rc != SQLITE_OK) {
			sqlite3_close(db);

		} else {
			while (sqlite3_step(res) == SQLITE_ROW) {
				struct bbs_list_entry_t *entry = malloz(sizeof(struct bbs_list_entry_t));
				entry->id = sqlite3_column_int(res, 0);
				entry->bbsname = strdup(sqlite3_column_text(res, 1));
				entry->sysopname = strdup(sqlite3_column_text(res, 2));
				entry->telnet = strdup(sqlite3_column_text(res, 3));
				ptr_vector_append(&entries, entry);
			}
			sqlite3_finalize(res);
			sqlite3_close(db);
		}
		entrycount = ptr_vector_len(&entries);

		if (entrycount > 0) {
			while (1) {
				if (redraw) {
					s_printf("\e[2J\e[1;1H");
					s_printf(get_string(270));
					s_printf(get_string(271));
					for (i = start; i < start + 22 && i < entrycount; i++) {
						struct bbs_list_entry_t *entry = ptr_vector_get(&entries, i);
						int strn = (i == selected) ? 269 : 268;
						s_printf(get_string(strn), i - start + 2, i, entry->bbsname, entry->sysopname, entry->telnet);
					}
					s_printf("\e[%d;5H", selected - start + 2);
					redraw = 0;
				}
				c = s_getchar();
				if (tolower(c) == 'q') {
					for (i = 0; i < entrycount; i++) {
						struct bbs_list_entry_t *entry = ptr_vector_get(&entries, i);
						free(entry->bbsname);
						free(entry->sysopname);
						free(entry->telnet);
						free(entry);
					}
					destroy_ptr_vector(&entries);
					return;
				} else if (tolower(c) == 'a') {
					newentry = (struct bbs_list_entry_t *)malloz(sizeof(struct bbs_list_entry_t));
					if (add_bbs(newentry)) {
						ptr_vector_append(&entries, newentry);
						entrycount++;
					} else {
						free(newentry);
					}
					redraw = 1;
				} else if (tolower(c) == 'd') {
					struct bbs_list_entry_t *entry = ptr_vector_del(&entries, selected);
					if (delete_bbs(entry->id)) {
						free(entry->bbsname);
						free(entry->sysopname);
						free(entry->telnet);
						free(entry);
						entrycount--;
						if (entrycount == 0) {
							return;
						}
						if (selected >= entrycount) {
							selected = entrycount - 1;
						}
					}
					redraw = 1;
				} else if (c == 27) {
					c = s_getchar();
					if (c == 91) {
						c = s_getchar();
						if (c == 66) {
							// down
							if (selected + 1 >= start + 22) {
								start += 22;
								if (start >= entrycount) {
									start = entrycount - 22;
								}
								redraw = 1;
							}
							selected++;
							if (selected >= entrycount) {
								selected = entrycount - 1;
							} else {
								if (!redraw) {
									struct bbs_list_entry_t *before = ptr_vector_get(&entries, selected - 1);
									struct bbs_list_entry_t *entry = ptr_vector_get(&entries, selected);
									s_printf(get_string(268), selected - start + 1, selected - 1, before->bbsname, before->sysopname, before->telnet);
									s_printf(get_string(269), selected - start + 2, selected, entry->bbsname, entry->sysopname, entry->telnet);
									s_printf("\e[%d;4H", selected - start + 2);
								}
							}
						} else if (c == 65) {
							// up
							if (selected - 1 < start) {
								start -= 22;
								if (start < 0) {
									start = 0;
								}
								redraw = 1;
							}
							selected--;
							if (selected < 0) {
								selected = 0;
							} else {
								if (!redraw) {
									struct bbs_list_entry_t *entry = ptr_vector_get(&entries, selected);
									struct bbs_list_entry_t *after = ptr_vector_get(&entries, selected + 1);
									s_printf(get_string(269), selected - start + 2, selected, entry->bbsname, entry->sysopname, entry->telnet);
									s_printf(get_string(268), selected - start + 3, selected + 1, after->bbsname, after->sysopname, after->telnet);
									s_printf("\e[%d;4H", selected - start + 2);
								}
							}
						} else if (c == 75) {
							// END KEY
							selected = entrycount - 1;
							start = entrycount - 22;
							if (start < 0) {
								start = 0;
							}
							redraw = 1;
						} else if (c == 72) {
							// HOME KEY
							selected = 0;
							start = 0;
							redraw = 1;
						} else if (c == 86 || c == '5') {
							if (c == '5') {
								s_getchar();
							}
							// PAGE UP
							selected = selected - 22;
							if (selected < 0) {
								selected = 0;
							}
							start = selected;
							redraw = 1;
						} else if (c == 85 || c == '6') {
							if (c == '6') {
								s_getchar();
							}
							// PAGE DOWN
							selected = selected + 22;
							if (selected >= entrycount) {
								selected = entrycount - 1;
							}
							start = selected;
							redraw = 1;
						}
					}
				}
			}
		} else {
			// no entries
			s_printf("\e[2J\e[1;1H");
			s_printf(get_string(270));
			s_printf(get_string(271));
			s_printf(get_string(272));
			s_printf(get_string(273));

			while (1) {
				c = s_getchar();

				if (tolower(c) == 'a') {
					add_bbs(NULL);
					break;
				} else if (tolower(c) == 'q') {
					return;
				}
			}
		}
	}
}