1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
import Database from "better-sqlite3";
import path from "path";
import { fileURLToPath } from "url";
const __dirname = path.dirname(fileURLToPath(import.meta.url));
const DB_PATH = path.join(__dirname, "../../events.db");
let _db: Database.Database | null = null;
function getDb(): Database.Database {
if (!_db) {
_db = new Database(DB_PATH);
_db.pragma("journal_mode = WAL");
_db.pragma("foreign_keys = ON");
initSchema(_db);
}
return _db;
}
function initSchema(db: Database.Database) {
db.exec(`
CREATE TABLE IF NOT EXISTS venues (
id TEXT PRIMARY KEY,
name TEXT NOT NULL,
url TEXT NOT NULL,
area TEXT
);
CREATE TABLE IF NOT EXISTS events (
id INTEGER PRIMARY KEY AUTOINCREMENT,
venue_id TEXT NOT NULL REFERENCES venues(id),
title TEXT NOT NULL,
artist TEXT,
date TEXT NOT NULL,
start_time TEXT,
open_time TEXT,
ticket_url TEXT,
price TEXT,
image_url TEXT,
description TEXT,
source_url TEXT,
fetched_at TEXT NOT NULL DEFAULT (datetime('now')),
UNIQUE(venue_id, title, date)
);
CREATE INDEX IF NOT EXISTS idx_events_date ON events(date);
CREATE INDEX IF NOT EXISTS idx_events_venue_id ON events(venue_id);
`);
}
export interface Venue {
id: string;
name: string;
url: string;
area: string | null;
event_count?: number;
}
export interface Event {
id: number;
venue_id: string;
venue_name: string;
venue_area: string | null;
venue_url?: string;
title: string;
artist: string | null;
date: string;
start_time: string | null;
open_time: string | null;
ticket_url: string | null;
price: string | null;
image_url: string | null;
description: string | null;
source_url: string | null;
fetched_at: string;
}
export interface EventInput {
venue_id: string;
title: string;
artist?: string | null;
date: string;
start_time?: string | null;
open_time?: string | null;
ticket_url?: string | null;
price?: string | null;
image_url?: string | null;
description?: string | null;
source_url?: string | null;
}
export function upsertVenue(
id: string,
name: string,
url: string,
area?: string
) {
getDb()
.prepare(
"INSERT OR REPLACE INTO venues (id, name, url, area) VALUES (?, ?, ?, ?)"
)
.run(id, name, url, area ?? null);
}
export function upsertEvent(event: EventInput) {
getDb()
.prepare(
`INSERT INTO events
(venue_id, title, artist, date, start_time, open_time,
ticket_url, price, image_url, description, source_url, fetched_at)
VALUES
(@venue_id, @title, @artist, @date, @start_time, @open_time,
@ticket_url, @price, @image_url, @description, @source_url, datetime('now'))
ON CONFLICT(venue_id, title, date) DO UPDATE SET
artist = excluded.artist,
start_time = excluded.start_time,
open_time = excluded.open_time,
ticket_url = excluded.ticket_url,
price = excluded.price,
image_url = excluded.image_url,
description = excluded.description,
source_url = excluded.source_url,
fetched_at = excluded.fetched_at`
)
.run(event);
}
export interface QueryEventsParams {
date_from?: string;
date_to?: string;
venue_id?: string;
keyword?: string;
limit?: number;
offset?: number;
}
export function queryEvents(params: QueryEventsParams = {}): Event[] {
const { date_from, date_to, venue_id, keyword, limit = 60, offset = 0 } =
params;
const clauses: string[] = [];
const args: unknown[] = [];
if (date_from) {
clauses.push("e.date >= ?");
args.push(date_from);
}
if (date_to) {
clauses.push("e.date <= ?");
args.push(date_to);
}
if (venue_id) {
clauses.push("e.venue_id = ?");
args.push(venue_id);
}
if (keyword) {
clauses.push("(e.title LIKE ? OR e.artist LIKE ?)");
args.push(`%${keyword}%`, `%${keyword}%`);
}
const where = clauses.length ? `WHERE ${clauses.join(" AND ")}` : "";
return getDb()
.prepare(
`SELECT e.*, v.name AS venue_name, v.area AS venue_area
FROM events e JOIN venues v ON e.venue_id = v.id
${where}
ORDER BY e.date ASC, e.start_time ASC
LIMIT ? OFFSET ?`
)
.all(...args, limit, offset) as Event[];
}
export function getEvent(id: number): Event | undefined {
return getDb()
.prepare(
`SELECT e.*, v.name AS venue_name, v.url AS venue_url, v.area AS venue_area
FROM events e JOIN venues v ON e.venue_id = v.id
WHERE e.id = ?`
)
.get(id) as Event | undefined;
}
export function getVenues(): Venue[] {
return getDb()
.prepare(
`SELECT v.*, COUNT(e.id) AS event_count
FROM venues v LEFT JOIN events e ON v.id = e.venue_id
GROUP BY v.id ORDER BY v.name`
)
.all() as Venue[];
}
|
