mkdir -p /var/www/html/tag
wget https://www.clarity.ms/tag/abcdefg -O /var/www/html/tag/abcdefg

> tree /var/www/html
/var/www/html
├── clarity.js
├── s
│   ├── 0.8.13-beta
│   │   └── clarity.js
│   └── 0.8.9
│       └── clarity.js
└── tag
    ├── abcdefg
    └── hijklmn

5 directories, 5 files

server {
    listen 80;
    listen [::]:80;
    listen 443 ssl;
    listen [::]:443 ssl;
    server_name clarity.example.com;

    if ($scheme = http) {
        return 301 https://$host$request_uri;
    }
    location /c.gif {
        proxy_pass https://c.clarity.ms$request_uri;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Real-PORT $remote_port;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
    location /collect {
        proxy_pass https://z.clarity.ms$request_uri;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Real-PORT $remote_port;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
    root /var/www/html;
}

import os
import re
import requests
from dotenv import load_dotenv

load_dotenv()

PROJECT_ID = os.getenv("PROJECT_ID")
BASE_DIR = os.getenv("BASE_DIR", "/var/www/html/clarity")
CUSTOM_DOMAIN = os.getenv("CUSTOM_DOMAIN")
NGINX_CONF = os.getenv("NGINX_CONF", "/etc/nginx/conf.d/clarity.conf")
if not PROJECT_ID:
    raise ValueError("PROJECT_ID is not set in the environment variables.")
if not CUSTOM_DOMAIN:
    raise ValueError("CUSTOM_DOMAIN is not set in the environment variables.")

def get_index(try_times = 5):
    resp = requests.get(f'https://www.clarity.ms/tag/{PROJECT_ID}')
    if resp.status_code != 200:
        if try_times > 0:
            return get_index(try_times - 1)
        raise RuntimeError(f"Failed to fetch data from Clarity. Status code: {resp.status_code}\n{resp.text}")
    return resp

def get_script(url, try_times = 5):
    resp = requests.get(url)
    if resp.status_code != 200:
        if try_times > 0:
            return get_script(url, try_times - 1)
        raise RuntimeError(f"Failed to fetch Clarity script. Status code: {resp.status_code}\n{resp.text}")
    return resp

resp = get_index()
script_content = resp.text

clarity_js_url = re.search(r'https://www.clarity.ms/s/[^"]+\.js', script_content)
if not clarity_js_url:
    raise RuntimeError("Clarity script URL not found in the response.")
clarity_js_url = clarity_js_url.group(0)
upload_url = re.search(r'"upload":"([^"]+)"', script_content)
if not upload_url:
    raise RuntimeError("Upload URL not found in the response.")
upload_url = upload_url.group(1)

clarity_js_version = clarity_js_url.split('/')[-2]
clarity_js_path = os.path.join(BASE_DIR, 's', clarity_js_version, 'clarity.js')
if not os.path.exists(clarity_js_path):
    resp = get_script(clarity_js_url)
    os.makedirs(os.path.dirname(clarity_js_path), exist_ok=True)
    with open(clarity_js_path, 'wb') as f:
        f.write(resp.content)

with open(NGINX_CONF, 'w') as f:
    f.write("""server {
    listen 80;
    listen [::]:80;
    listen 443 ssl;
    listen [::]:443 ssl;
    server_name %s;
    if ($scheme = http) {
        return 301 https://$host$request_uri;
    }
    location /c.gif {
        proxy_pass https://c.clarity.ms$request_uri;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Real-PORT $remote_port;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
    location /collect {
        proxy_pass https://%s$request_uri;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Real-PORT $remote_port;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
    root %s;
}
""" % (CUSTOM_DOMAIN, upload_url.split('/')[2], BASE_DIR))

os.system('nginx -s reload')

new_script_content = script_content.replace(
    'www.clarity.ms',
    CUSTOM_DOMAIN
).replace(
    upload_url.split('/')[2],
    CUSTOM_DOMAIN
).replace(
    'c.clarity.ms',
    CUSTOM_DOMAIN
)

with open(os.path.join(BASE_DIR, 'tag', PROJECT_ID), 'w') as f:
    f.write(new_script_content)