462 lines
14 KiB
Zig
462 lines
14 KiB
Zig
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const std = @import("std");
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const mem = std.mem;
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const json = std.json;
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const sqlite = @import("sqlite.zig");
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const twitch = @import("twitch.zig");
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const Client = @import("client.zig").Client;
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const webhook = @import("webhook.zig");
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const Config = struct {
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token: []const u8,
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client_id: []const u8,
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refresh_rate: u64,
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user_logins: []const User,
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webhook_url: []const u8,
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pub fn fromFile(allocator: std.mem.Allocator, path: []const u8) anyerror!@This() {
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var file = try std.fs.cwd().openFile(path, .{
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.read = true,
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.write = false,
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});
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var stat = try file.stat();
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const file_buffer = try allocator.alloc(u8, stat.size);
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_ = try file.readAll(file_buffer);
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file.close();
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var stream = json.TokenStream.init(file_buffer);
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const res = json.parse(@This(), &stream, .{ .allocator = allocator });
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allocator.free(file_buffer);
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return res;
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}
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pub fn deinit(self: *@This(), allocator: mem.Allocator) void {
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allocator.free(self.token);
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allocator.free(self.client_id);
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for (self.user_logins) |user| {
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allocator.free(user.user_login);
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}
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allocator.free(self.user_logins);
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allocator.free(self.webhook_url);
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self.* = undefined;
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}
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};
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const User = struct { user_login: []u8 };
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const DATABASE_VERSION_CODE = 2;
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const CREATE_TABLES =
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\\ CREATE TABLE VERSION
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\\ (
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\\ versionCode INTEGER
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\\ );
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\\
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\\ INSERT INTO VERSION(versionCode)
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\\ VALUES (2);
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\\
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\\ CREATE TABLE STREAMER
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\\ (
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\\ idStreamer TEXT PRIMARY KEY NOT NULL,
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\\ loginStreamer TEXT NOT NULL,
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\\ nameStreamer TEXT NOT NULL,
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\\ imageUrlStreamer TEXT
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\\ );
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\\
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\\ CREATE TABLE STREAM
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\\ (
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\\ idStream TEXT PRIMARY KEY NOT NULL,
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\\ idStreamer TEXT NOT NULL,
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\\ isMatureStream BOOLEAN NOT NULL DEFAULT 'F',
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\\ CONSTRAINT FK_STREAM_STREAMER_ID FOREIGN KEY (idStreamer) REFERENCES STREAMER (idStreamer)
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\\ );
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\\
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\\ CREATE TABLE VIEWER_COUNT_STREAM
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\\ (
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\\ viewerCount INTEGER NOT NULL,
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\\ dateViewerCount DATE NOT NULL,
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\\ idStream TEXT NOT NULL,
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\\ PRIMARY KEY (dateViewerCount, idStream),
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\\ CONSTRAINT FK_VIEWER_COUNT_STREAM_ID FOREIGN KEY (idStream) REFERENCES STREAM (idStream)
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\\ );
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\\
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\\ CREATE TABLE NAME_STREAM
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\\ (
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\\ nameStream TEXT NOT NULL,
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\\ dateNameStream DATE NOT NULL,
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\\ idStream TEXT NOT NULL,
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\\ PRIMARY KEY (dateNameStream, idStream),
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\\ CONSTRAINT FK_NAME_STREAM_STREAM_ID FOREIGN KEY (idStream) REFERENCES STREAM (idStream)
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\\ );
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\\
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\\ CREATE TABLE GAME
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\\ (
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\\ gameId TEXT NOT NULL PRIMARY KEY,
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\\ gameName TEXT
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\\ );
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\\
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\\ CREATE TABLE IS_STREAMING_GAME
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\\ (
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\\ gameId TEXT NOT NULL,
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\\ streamId TEXT NOT NULL,
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\\ dateGameStream DATE NOT NULL,
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\\ PRIMARY KEY (gameId, streamId, dateGameStream),
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\\ CONSTRAINT FK_GAME_STREAM_GAME_ID FOREIGN KEY (gameId) REFERENCES GAME (gameId),
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\\ CONSTRAINT FK_GAME_STREAM_STREAM_ID FOREIGN KEY (streamId) REFERENCES STREAM (idStream)
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\\ );
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;
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const DROP_TABLES =
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\\ DROP TABLE IF EXISTS VERSION;
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\\ DROP TABLE IF EXISTS NAME_STREAM;
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\\ DROP TABLE IF EXISTS VIEWER_COUNT_STREAM;
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\\ DROP TABLE IF EXISTS IS_STREAMING_GAME;
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\\ DROP TABLE IF EXISTS STREAM;
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\\ DROP TABLE IF EXISTS STREAMER;
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\\ DROP TABLE IF EXISTS GAME;
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;
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allocator: mem.Allocator,
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db: sqlite.Database,
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headers: std.StringHashMap([]const u8),
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wait_event: std.Thread.StaticResetEvent = std.Thread.StaticResetEvent{},
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config: Config,
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pub fn init(allocator: mem.Allocator) anyerror!@This() {
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var db = try sqlite.Database.open("data.db");
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try createTables(&db);
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var config = try Config.fromFile(allocator, "config.json");
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try Client.globalInit();
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var client = try Client.init(allocator);
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var headers = std.StringHashMap([]const u8).init(allocator);
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try headers.put("Authorization", config.token);
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try headers.put("Client-Id", config.client_id);
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try insertOrReplaceStreamers(allocator, &db, &client, &config, &headers);
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client.deinit();
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return @This(){
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.allocator = allocator,
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.db = db,
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.headers = headers,
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.config = config,
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};
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}
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pub fn deinit(self: *@This()) anyerror!void {
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std.log.debug("deinit app", .{});
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self.config.deinit(self.allocator);
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self.headers.deinit();
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try self.db.close();
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self.* = undefined;
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}
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pub fn run(self: *@This()) anyerror!void {
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var loop = true;
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while (loop) {
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var alertAllocator = std.heap.ArenaAllocator.init(self.allocator);
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var allocator = alertAllocator.allocator();
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var client = try Client.init(allocator);
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try updateAlert(allocator, &client, &self.config, &self.db, &self.headers);
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alertAllocator.deinit();
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client.deinit(); // TODO Maybe don't recreate client every loop, just change allocator
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std.log.debug("sleeping for {} ns", .{self.config.refresh_rate * std.time.ns_per_ms});
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const res = self.wait_event.timedWait(self.config.refresh_rate * std.time.ns_per_ms);
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loop = res == .timed_out;
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}
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}
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pub fn stop(self: *@This()) void {
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self.wait_event.set();
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}
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fn createTables(db: *sqlite.Database) anyerror!void {
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var stm = db.prepare("SELECT versionCode FROM VERSION ORDER BY versionCode DESC") catch {
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std.log.debug("Creating database", .{});
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try db.exec(CREATE_TABLES);
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return;
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};
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if (stm.next()) {
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var code: isize = 0;
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try stm.fetch(.{&code});
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stm.finalize();
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if (DATABASE_VERSION_CODE == code) {
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std.log.debug("Database already created", .{});
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return;
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} else {
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try db.exec(DROP_TABLES);
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std.log.debug("Creating database", .{});
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try db.exec(CREATE_TABLES);
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}
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}
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stm.finalize();
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}
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fn updateAlert(
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allocator: std.mem.Allocator,
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client: *Client,
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config: *Config,
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database: *sqlite.Database,
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headers: *std.StringHashMap([]const u8),
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) anyerror!void {
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var request = std.ArrayList(u8).init(allocator);
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try request.appendSlice("https://api.twitch.tv/helix/streams?");
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{
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var i: u8 = 0;
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while (i < config.user_logins.len) : (i += 1) {
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if (i != 0)
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try request.append('&');
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try request.appendSlice("user_login=");
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try request.appendSlice(config.user_logins[i].user_login);
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}
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}
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try request.append(0);
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var streams: twitch.TwitchRes([]const twitch.Stream) = try client.getJSON(
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twitch.TwitchRes([]const twitch.Stream),
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@ptrCast([*:0]const u8, request.items),
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headers,
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);
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request.deinit();
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if (streams.data.len > 0) {
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var embeds = std.ArrayList(webhook.Embed).init(allocator);
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for (streams.data) |s| {
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if (try appendEmbed(allocator, &s, database)) |e| {
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std.log.debug("sending {s}", .{s.title});
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try embeds.append(e);
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}
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}
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if (embeds.items.len > 0) {
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var res = try client.postJSON(config.webhook_url, webhook.Webhook{
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.username = "Twitch",
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.content = "Live alert",
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.embeds = embeds.items,
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}, null);
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client.allocator.free(res);
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}
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embeds.deinit();
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}
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streams.deinit(allocator);
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}
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fn appendEmbed(allocator: std.mem.Allocator, stream: *const twitch.Stream, db: *sqlite.Database) anyerror!?webhook.Embed {
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if (!try streamExist(db, stream.id)) {
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try insertStream(db, stream);
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try insertMetadatas(db, stream);
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var fields = std.ArrayList(webhook.Field).init(allocator); // TODO BETTER WAY
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var viewer = std.ArrayList(u8).init(allocator);
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try std.fmt.format(viewer.writer(), "{}", .{stream.viewer_count});
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try fields.append(.{
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.name = "Viewer count",
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.value = viewer.toOwnedSlice(),
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.@"inline" = true,
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});
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try fields.append(.{
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.name = "Game name",
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.value = stream.game_name,
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.@"inline" = true,
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});
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var thumbnail = try std.mem.replaceOwned(u8, allocator, stream.thumbnail_url, "{width}", "1920");
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thumbnail = try std.mem.replaceOwned(u8, allocator, thumbnail, "{height}", "1080");
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var stream_url = std.ArrayList(u8).init(allocator);
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_ = try stream_url.appendSlice("https://twitch.tv/");
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_ = try stream_url.appendSlice(stream.user_login);
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var icon_url: ?[]u8 = undefined;
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var stm = try db.prepare("SELECT imageUrlStreamer FROM STREAMER WHERE idStreamer = ?");
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try stm.bind(1, sqlite.U8Array.text(stream.user_id));
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if (stm.next()) {
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var res = sqlite.U8Array.text(undefined);
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try stm.fetch(.{&res});
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icon_url = try allocator.alloc(u8, res.text.len);
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std.mem.copy(u8, icon_url.?, res.text);
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stm.finalize();
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} else {
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icon_url = null;
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}
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return webhook.Embed{
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.title = stream.title,
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.image = .{
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.url = thumbnail,
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},
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.author = .{
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.name = stream.user_name,
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.url = stream_url.items,
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.icon_url = icon_url,
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},
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.color = 0xa970ff,
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.fields = fields.toOwnedSlice(),
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};
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} else {
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try insertMetadatas(db, stream);
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return null;
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}
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}
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fn streamExist(db: *sqlite.Database, streamId: []const u8) anyerror!bool {
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var stm = try db.prepare("SELECT \"foo\" FROM STREAM WHERE idStream = ?");
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try stm.bind(1, sqlite.U8Array.text(streamId));
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const res = stm.next();
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stm.finalize();
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return res;
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}
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fn insertStream(db: *sqlite.Database, stream: *const twitch.Stream) anyerror!void {
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var stm = try db.prepare(
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"INSERT INTO STREAM(idStream, idStreamer, isMatureStream) VALUES(?, ?, ?)",
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);
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try stm.bind(1, sqlite.U8Array.text(stream.id));
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try stm.bind(2, sqlite.U8Array.text(stream.user_id));
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try stm.bind(3, @boolToInt(stream.is_mature));
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try stm.exec();
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stm.finalize();
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}
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pub fn insertMetadatas(db: *sqlite.Database, stream: *const twitch.Stream) anyerror!void {
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var stm = try db.prepare(
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"INSERT INTO VIEWER_COUNT_STREAM(viewerCount, dateViewerCount, idStream) VALUES(?, datetime(\"now\"), ?)",
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);
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try stm.bind(1, stream.viewer_count);
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try stm.bind(2, sqlite.U8Array.text(stream.id));
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try stm.exec();
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stm.finalize();
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if (try mustInsertName(db, stream)) {
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std.log.debug("inserting name : {s} ({s})", .{ stream.title, stream.id });
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stm = try db.prepare(
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"INSERT INTO NAME_STREAM(nameStream, dateNameStream, idStream) VALUES(?, datetime(\"now\"), ?)",
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);
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try stm.bind(1, sqlite.U8Array.text(stream.title));
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try stm.bind(2, sqlite.U8Array.text(stream.id));
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try stm.exec();
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stm.finalize();
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}
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stm = try db.prepare(
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"INSERT OR IGNORE INTO GAME(gameId, gameName) VALUES(?, ?)",
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);
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try stm.bind(1, sqlite.U8Array.text(stream.game_id));
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try stm.bind(2, sqlite.U8Array.text(stream.game_name));
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try stm.exec();
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stm.finalize();
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stm = try db.prepare(
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"INSERT INTO IS_STREAMING_GAME(gameId, streamId, dateGameStream) VALUES(?, ?, datetime(\"now\"))",
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);
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try stm.bind(1, sqlite.U8Array.text(stream.game_id));
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try stm.bind(2, sqlite.U8Array.text(stream.id));
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try stm.exec();
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stm.finalize();
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}
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fn mustInsertName(db: *sqlite.Database, stream: *const twitch.Stream) anyerror!bool {
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var stm = try db.prepare(
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"SELECT nameStream != ? FROM NAME_STREAM WHERE idStream = ? ORDER BY dateNameStream DESC LIMIT 1",
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);
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try stm.bind(1, sqlite.U8Array.text(stream.title));
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try stm.bind(2, sqlite.U8Array.text(stream.id));
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var res: c_int = 1;
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if (stm.next()) {
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try stm.fetch(.{&res});
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}
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stm.finalize();
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return res == 1;
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}
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fn insertOrReplaceStreamers(
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allocator: std.mem.Allocator,
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db: *sqlite.Database,
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client: *Client,
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config: *const Config,
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headers: *std.StringHashMap([]const u8),
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) anyerror!void {
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var request = std.ArrayList(u8).init(allocator);
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try request.appendSlice("https://api.twitch.tv/helix/users?");
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defer {
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request.deinit();
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}
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{
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var i: u8 = 0;
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while (i < config.user_logins.len) : (i += 1) {
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if (i != 0)
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try request.append('&');
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try request.appendSlice("login=");
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try request.appendSlice(config.user_logins[i].user_login);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
try request.append(0);
|
||
|
|
||
|
var streamers: twitch.TwitchRes([]const twitch.User) = try client.getJSON(
|
||
|
twitch.TwitchRes([]const twitch.User),
|
||
|
@ptrCast([*:0]const u8, request.items),
|
||
|
headers,
|
||
|
);
|
||
|
|
||
|
for (streamers.data) |streamer| {
|
||
|
var stm = try db.prepare("INSERT OR REPLACE INTO STREAMER(idStreamer, loginStreamer, nameStreamer, imageUrlStreamer) VALUES(?, ?, ?, ?)");
|
||
|
try stm.bind(1, sqlite.U8Array.text(streamer.id));
|
||
|
try stm.bind(2, sqlite.U8Array.text(streamer.login));
|
||
|
try stm.bind(3, sqlite.U8Array.text(streamer.display_name));
|
||
|
try stm.bind(4, sqlite.U8Array.text(streamer.profile_image_url));
|
||
|
|
||
|
try stm.exec();
|
||
|
stm.finalize();
|
||
|
}
|
||
|
|
||
|
streamers.deinit(allocator);
|
||
|
}
|