from flask import Flask, render_template_string
import subprocess
import os
import re
import datetime
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>


"""


# Putanje do HTML datoteka
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')
}

# Putanja do fajla sa brojem posjeta
visit_file = os.path.join(base_dir, 'visits.txt')

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

# MOTD (Message of the Day)
motd = "Dobrodošli na našu stranicu!"

# Funkcija za broj posjeta
# Funkcija za zamjenu placeholder-a u HTML sadržaju
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

# Ruta za početnu stranicu
@app.route('/')
def home():
    # Učitavanje index.html i zamjena placeholder-a
    print(html_files)
    content = replace_placeholders(html_files['index.html'])
    return content

# Ruta za druge stranice (projects, contribute)
@app.route('/<page>')
def other_pages(page):
    # Provjera ako stranica postoji u mapiranju
    if page in html_files:
        content = replace_placeholders(html_files[page])
        return content
    else:
        return "<h1>Stranica nije pronađena</h1>", 404

if __name__ == '__main__':
    app.run(debug=True, host='0.0.0.0', port=8000)