project_manager.py

import os
import json
from datetime import datetime
import shortuuid

from logger import Logger, INFO, WARNING, ERROR

class ProjectManager:
    def __init__(self, project_file = "data/projects.json"):
        self.project_file = project_file
        self.projects = {}
        self.logger = Logger(True, "logs/project_logs.txt")
        
        os.makedirs("data", exist_ok=True)
        os.makedirs("logs", exist_ok=True)
    
        self._load_projects()
    
    def _load_projects(self):
        if os.path.exists(self.project_file):
            try:
                with open(self.project_file, "r") as f:
                    self.projects = json.load(f)
                self.logger.log("Loaded projects from file", INFO)
                return True
            
            except Exception as e:
                self.logger.log(f"Error loading projects: {e}", ERROR)
                self.projects = {}
                return False
        
        else:
            self.projects = {}
            return False
        
    def _save_projects(self):
        try:
            with open(self.project_file, 'w') as f:
                json.dump(self.projects, f, indent=4)
            self.logger.log("Saved projects to file", INFO)
            return True
        
        except Exception as e:
            self.logger.log(f"Error saving projects: {e}", ERROR)
            return False
    
    def _username_in_project(self, username):
        return username in self.projects
    


    def add_project(self, username, name, description=""):
        if not name.strip():
            self.logger.log("Project name cannot be empty.", WARNING)
            return False, "Invalid project name"
        
        if not self._username_in_project(username):
            self.projects[username] = {}
        
        project_id = shortuuid.uuid()[:8]
        timestamp = datetime.now().isoformat()

        self.projects[username][project_id] = {
            "name": name,
            "description": description,
            "created": timestamp
        }

        self.logger.log(f"Project added for user '{username}': {name} ({project_id})")
        self._save_projects()
        return project_id, None
    


    def delete_project(self, username, project_id):
        if self._username_in_project(username) and project_id in self.projects[username]:
            del self.projects[username][project_id]
            self.logger.log(f"Deleted project {project_id} for {username}", INFO)
            self._save_projects()
            return True, None
        self.logger.log(f"Attempt to delete non-existent project {project_id} for user {username}", WARNING)
        return False, "Project not found"



    def list_projects(self, username):
        return self.projects.get(username, {})

""" TESTING """