from flask import Flask, render_template_string, send_file
import subprocess
import os
import re
import datetime
from waitress import serve
pocelo = datetime.datetime.now()
app = Flask(__name__)
visits = 0

navbar = """
    <nav>
        <a href="index.html">Početna</a>
        <a href="projects.html">Projekti</a>
        <a href="contribute.html">Kako doprinijeti</a>
    </nav>


"""


base_dir = os.path.abspath('..')
html_files = {
    'index.html': os.path.join(base_dir, 'html', 'index.html'),
    'projects.html': os.path.join(base_dir, 'html', 'projects.html'),
    'contribute.html': os.path.join(base_dir, 'html', 'contribute.html'),
    'foss.jpg': os.path.join(base_dir, 'html', 'foss.jpg'),
    'git.png': os.path.join(base_dir, 'html', 'git.png'),
    'main.css': os.path.join(base_dir, 'html', 'main.css'),
    'main.js': os.path.join(base_dir, 'html', 'main.js'),
}

visit_file = os.path.join(base_dir, 'visits.txt')

git_commit = result = subprocess.run(
    ['git', 'log', '-1', '--pretty=%B'],
    capture_output=True, text=True, check=True
).stdout.splitlines()[0]

motd = "Dobrodošli na našu stranicu!"

def replace_placeholders(file_path):
    with open(file_path, 'r', encoding='utf-8') as file:
        global visits
        global pocelo
        content = file.read()
        footer = f'''
<footer>
    <p><strong>Git Commit:</strong> {git_commit}</p>
    <p><strong>Broj posjeta stranici:</strong> {visits}</p>
    <p><strong>Server pokrenut:</strong> {pocelo.strftime("%d.%m.%Y %H:%M:%S")}</p>
</footer>
'''
    content = re.sub(r'{{GIT_COMMIT}}', git_commit, content)
    content = re.sub(r'{{MOTD}}', motd, content)
    content = re.sub(r'{{nav}}', navbar, content)
    content = re.sub(r'{{footer}}', footer, content)
    visits+=1
    return content

@app.route('/')
def home():
    print(html_files)
    content = replace_placeholders(html_files['index.html'])
    return content

@app.route('/<page>')
def other_pages(page):
    if page in html_files:
        if(not page.endswith('.html')):
            if(page.endswith('.css')):
                with open(html_files[page], 'rb') as file:
                    return send_file(html_files[page], mimetype="text/css")
            with open(html_files[page], 'rb') as file:
                return file.read()
        content = replace_placeholders(html_files[page])
        return content
    else:
        return "<h1>Stranica nije pronađena</h1>", 404

if __name__ == '__main__':
    serve(app,host='0.0.0.0', port=8000)