https://www.trygroup.co.jp/js/digima-session-tracker.js

1(function(){
2    class SessionTracker {
3        constructor() {
4            // パラメータは&で繋げた文字列に変更
5            this.routes = [
6                { path: '/contact/', params: 'request_materials-1=1' },
7                { path: '/contact/', params: 'price-1=1' },
8                { path: '/taiken/', params: 'taiken-1=1' },
9                { path: '/request/', params: 'request_materials-1=1' },
10                { path: '/request/', params: 'price-1=1' },
11                { path: '/request/', params: 'soudan-1=1' },
12                { path: '/online/request/', params: 'request_materials-1=1' },
13                { path: '/online/request/', params: 'price-1=1' },
14                { path: '/try-online/request/', params: 'request_materials-1=1' },
15                { path: '/try-online/request/', params: 'price-1=1' },
16                { path: '/try-online/request/', params: 'taiken-1=1' },
17                { path: '/toiawase/kyoin/', params: 'kyoin_request_materials-1=1' },
18                { path: '/toiawase/', params: 'request_materials-1=1' },
19                { path: '/toiawase/', params: 'price-1=1' },
20                { path: '/reserve/', params: 'event_type=1&taikendan=1' },
21                { path: '/reserve/', params: 'event_type=2&opencampus=1' },
22                { path: '/reserve/', params: 'event_type=3&soudankai=1' },
23            ];
24            this.url = new URL(window.location.href);
25            this.path = this.url.pathname;
26            this.params = this.url.searchParams;
27        }
28
29        track() {
30            this.storeReferrer();
31            this.storeCategoryType();
32            this.storeMediaType();
33        }
34
35        storeReferrer() {
36            const sourceUrl = this.params.get('source_url');
37            if(sourceUrl) {
38                sessionStorage.setItem('referrer', decodeURIComponent(sourceUrl));
39            } else {
40                const referrer = document.referrer || '';
41                if (referrer) {
42                    sessionStorage.setItem('referrer', referrer);
43                }
44            }
45        }
46
47        storeCategoryType() {
48            for (const route of this.routes) {
49                if (this.path === route.path && this.checkParams(route.params)) {
50                    sessionStorage.setItem('category_type', route.params);
51                    break;
52                }
53            }
54        }
55
56        // 全てのパラメータが揃っている場合のみtrue
57        checkParams(paramsString) {
58            if (!paramsString) return false;
59
60            const paramsArray = paramsString.split('&'); // ['event_type=2', 'opencampus=1']
61
62            return paramsArray.every(param => {
63                const [key, value] = param.split('=');  // key: 'event_type', value: '2'
64                return this.params.get(key) === value;
65            });
66        }
67
68        storeMediaType() {
69            let mediaType;
70
71            try {
72                const queryParamsStr = sessionStorage.getItem('queryParams');
73                if (queryParamsStr) {
74                    const queryParams = JSON.parse(queryParamsStr);
75                    if (queryParams.utm_media) {
76                        mediaType = queryParams.utm_media.toLowerCase();
77                    }
78                }
79            } catch (e) {
80                console.warn('queryParams の JSON パースに失敗しました', e);
81            }
82
83            if (!mediaType) {
84                const utmMedia = this.params.get('utm_media');
85                mediaType = utmMedia ? utmMedia.toLowerCase() : 'organic';
86            }
87
88            sessionStorage.setItem('media_type', mediaType);
89        }
90    }
91
92    (function () {
93        window.SessionTracker = new SessionTracker();
94    })();
95})();