import subprocess
import datetime

class LatexReport:
  def __init__(self, file_name):
      self.file_name = file_name
      self.content = []
      self.content.append(r'\documentclass{article}')
      self.content.append(r'\usepackage[margin=2.5cm]{geometry}')  # Adjust page margins
      self.content.append(r'\usepackage{graphicx}')
      self.content.append(r'\usepackage{tabularx}')
      self.content.append(r'\begin{document}')
      # Get current date and time
      current_datetime = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
      self.content.append(r'\title{Energy System Analysis Report - ' + current_datetime + r'}')
      self.content.append(r'\author{Next-Generation Cities Institute}')
      self.content.append(r'\date{}')  # Remove the date field, as it's included in the title now
      self.content.append(r'\maketitle')

  def add_section(self, section_title):
      self.content.append(r'\section{' + section_title + r'}')

  def add_subsection(self, subsection_title):
      self.content.append(r'\subsection{' + subsection_title + r'}')

  def add_text(self, text):
      self.content.append(text)

  def add_table(self, table_data, caption=None, first_column_width=None):
    num_columns = len(table_data[0])
    total_width = 0.9  # Default total width

    if first_column_width is not None:
      first_column_width_str = str(first_column_width) + 'cm'
      total_width -= first_column_width / 16.0  # Adjust total width for the first column

    if caption:
      self.content.append(r'\begin{table}[htbp]')
      self.content.append(r'\caption{' + caption + r'}')
      self.content.append(r'\centering')

    self.content.append(r'\begin{tabularx}{\textwidth}{|p{' + first_column_width_str + r'}|' + '|'.join(['X'] * (
          num_columns - 1)) + '|}' if first_column_width is not None else r'\begin{tabularx}{\textwidth}{|' + '|'.join(
      ['X'] * num_columns) + '|}')
    self.content.append(r'\hline')
    for row in table_data:
      self.content.append(' & '.join(row) + r' \\')
      self.content.append(r'\hline')
    self.content.append(r'\end{tabularx}')

    if caption:
      self.content.append(r'\end{table}')

  def add_image(self, image_path, caption=None):
    if caption:
      self.content.append(r'\begin{figure}[htbp]')
      self.content.append(r'\centering')
      self.content.append(r'\includegraphics[width=0.8\textwidth]{' + image_path + r'}')
      self.content.append(r'\caption{' + caption + r'}')
      self.content.append(r'\end{figure}')
    else:
      self.content.append(r'\begin{figure}[htbp]')
      self.content.append(r'\centering')
      self.content.append(r'\includegraphics[width=0.8\textwidth]{' + image_path + r'}')
      self.content.append(r'\end{figure}')

  def save_report(self):
    self.content.append(r'\end{document}')  # Add this line to close the document
    with open(self.file_name, 'w') as f:
      f.write('\n'.join(self.content))

  def compile_to_pdf(self):
      subprocess.run(['pdflatex', self.file_name])