#!/usr/bin/env python3

import json
import shutil
import subprocess
import threading
import time
import sys
from queue import Queue

class Colors:
    RED = '\033[0;31m'
    GREEN = '\033[0;32m'
    YELLOW = '\033[1;33m'
    BLUE = '\033[0;34m'
    RESET = '\033[0m'

class ParallelTaskRunner:
    def __init__(self):
        self.tasks = []
        self.results = Queue()
        self.task_positions = {}
        self.lock = threading.Lock()
        
    def add_task(self, name, command=None, action=None):
        """Add a task to the execution queue."""
        if command is None and action is None:
            raise ValueError("Task must define a command or action")
        self.tasks.append({'name': name, 'command': command, 'action': action})
    
    def _update_task_line(self, task_id, text):
        """Update a specific task's display line with thread-safe cursor movement."""
        with self.lock:
            if task_id in self.task_positions:
                lines_up = len(self.task_positions) - self.task_positions[task_id]
                print(f"\033[{lines_up}A\r{text}\033[K\033[{lines_up}B", end="", flush=True)
            else:
                self.task_positions[task_id] = len(self.task_positions)
                print(text, flush=True)
    
    def _execute_task(self, task):
        """Execute a single task with real-time status updates."""
        name = task['name']
        command = task.get('command')
        action = task.get('action')
        task_id = threading.get_ident()
        
        self._update_task_line(task_id, f"{Colors.YELLOW}[STARTING]{Colors.RESET} {name}")
        
        if command is not None:
            try:
                process = subprocess.Popen(
                    command,
                    shell=True,
                    stdout=subprocess.PIPE,
                    stderr=subprocess.STDOUT,
                    text=True
                )

                # Animated progress indicator
                spinner_chars = "|/-\\"
                spinner_idx = 0

                while process.poll() is None:
                    spinner = f"{Colors.BLUE}[RUNNING]{Colors.RESET} {name} [{spinner_chars[spinner_idx]}]"
                    self._update_task_line(task_id, spinner)
                    spinner_idx = (spinner_idx + 1) % len(spinner_chars)
                    time.sleep(0.1)

                stdout, _ = process.communicate()

                if process.returncode == 0:
                    self._update_task_line(task_id, f"{Colors.GREEN}[COMPLETED]{Colors.RESET} {name}")
                    self.results.put({'name': name, 'success': True, 'output': stdout})
                else:
                    self._update_task_line(task_id, f"{Colors.RED}[FAILED]{Colors.RESET} {name}")
                    if stdout:
                        with self.lock:
                            print(f"\nError output for {name}:\n{stdout}")
                    self.results.put({'name': name, 'success': False, 'output': stdout})

            except Exception as e:
                self._update_task_line(task_id, f"{Colors.RED}[FAILED]{Colors.RESET} {name}")
                with self.lock:
                    print(f"\nException for {name}: {e}")
                self.results.put({'name': name, 'success': False, 'output': str(e)})
            return

        if action is None:
            return

        # Animated progress for callable actions
        spinner_chars = "|/-\\"
        spinner_idx = 0
        result_container = {}
        exception_container = {}
        done_event = threading.Event()

        def run_action():
            try:
                result_container['result'] = action()
            except Exception as exc:
                exception_container['exception'] = exc
            finally:
                done_event.set()

        worker = threading.Thread(target=run_action)
        worker.start()

        while not done_event.is_set():
            spinner = f"{Colors.BLUE}[RUNNING]{Colors.RESET} {name} [{spinner_chars[spinner_idx]}]"
            self._update_task_line(task_id, spinner)
            spinner_idx = (spinner_idx + 1) % len(spinner_chars)
            time.sleep(0.1)

        worker.join()

        if exception_container:
            exception = exception_container['exception']
            self._update_task_line(task_id, f"{Colors.RED}[FAILED]{Colors.RESET} {name}")
            with self.lock:
                print(f"\nException for {name}: {exception}")
            self.results.put({'name': name, 'success': False, 'output': str(exception)})
            return

        result = result_container.get('result')
        success = True
        note = ''
        output = ''

        if isinstance(result, tuple):
            if len(result) == 3:
                success, note, output = result
            elif len(result) == 2:
                success, output = result
        elif isinstance(result, dict):
            success = bool(result.get('success', True))
            note = result.get('note', '')
            output = result.get('output', '')
        elif isinstance(result, bool):
            success = result
        elif result is not None:
            output = str(result)

        if success:
            final_text = f"{Colors.GREEN}[COMPLETED]{Colors.RESET} {name}"
            if note:
                final_text += f" {note}"
            self._update_task_line(task_id, final_text)
            self.results.put({'name': name, 'success': True, 'output': output})
        else:
            self._update_task_line(task_id, f"{Colors.RED}[FAILED]{Colors.RESET} {name}")
            if output:
                with self.lock:
                    print(f"\nError output for {name}:\n{output}")
            self.results.put({'name': name, 'success': False, 'output': output})
    
    def run_all(self):
        """Execute all tasks in parallel and return overall success status."""
        print("Starting parallel upgrade tasks...\n")
        
        # Start all tasks
        threads = [
            threading.Thread(target=self._execute_task, args=(task,))
            for task in self.tasks
        ]
        
        for thread in threads:
            thread.start()
        
        for thread in threads:
            thread.join()
        
        # Display summary
        print(f"\n{'=' * 47}")
        
        # Count results properly
        all_results = []
        while not self.results.empty():
            all_results.append(self.results.get())
        
        failed_tasks = [result for result in all_results if not result['success']]
        
        if not failed_tasks:
            print(f"{Colors.GREEN}All upgrade tasks completed successfully!{Colors.RESET}")
            return True
        else:
            print(f"{Colors.RED}FAILED TASKS:{Colors.RESET}")
            for task in failed_tasks:
                print(f"\n{Colors.RED}• {task['name']}{Colors.RESET}")
                if task['output']:
                    # Print first 10 lines of error output
                    output_lines = task['output'].strip().split('\n')
                    error_lines = output_lines[:10]
                    for line in error_lines:
                        print(f"  {line}")
                    if len(output_lines) > 10:
                        print(f"  ... ({len(output_lines) - 10} more lines)")
            print(f"\n{Colors.RED}Total failed: {len(failed_tasks)} out of {len(all_results)} tasks{Colors.RESET}")
            return False

NPM_PACKAGE_LOCKS = {
    # "@openai/codex": "0.40.0",
}

def install_brew_packages():
    """Install missing brew packages."""
    print("📦 Checking brew packages...")
    
    # Get list of installed packages
    try:
        result = subprocess.run(['brew', 'list', '--formula', '-1'], 
                              capture_output=True, text=True, check=True)
        installed_packages = result.stdout.strip()
    except subprocess.CalledProcessError:
        print("❌ Failed to get brew package list")
        return False
    
    packages = [
        # System utilities
        "htop", "dust", "ncdu", "fswatch", "pipx", "uv", "terminal-notifier",
        # macOS GNU utilities
        "coreutils", "gnu-tar", "gnu-getopt", "gnu-sed",
        # Development tools
        "node", "go", "gcc", "gdb", "automake", "cmake", "jsdoc3", "oven-sh/bun/bun",
        # Text processing and search
        "ripgrep", "the_silver_searcher", "fd", "fzf", "bat", "ccat", "tree", "jq", "yq",
        # File management
        "yazi", "sevenzip",
        # Git and version control
        "git", "git-delta", "git-flow", "jesseduffield/lazygit/lazygit", "gh",
        # Media and graphics
        "ffmpeg", "imagemagick", "poppler", "yt-dlp",
        # Network and web
        "wget", "speedtest-cli", "cliproxyapi",
        # Terminal and shell
        "tmux", "neovim", "starship", "rainbarf", "neofetch", "onefetch", "tldr", "bmon", "loc",
        # Applications
        "awscli", "azure-cli", "terraform"
    ]
    
    missing_packages = []
    installed_list = installed_packages.split('\n')
    
    for package in packages:
        # Handle tap packages (contains /)
        if "/" in package:
            package_name = package.split("/")[-1]  # Extract package name after last /
            if package_name not in installed_list:
                missing_packages.append(package)
        else:
            if package not in installed_list:
                missing_packages.append(package)
    
    if missing_packages:
        print(f"Installing {len(missing_packages)} missing packages...")
        for package in missing_packages:
            try:
                subprocess.run(['brew', 'install', package], check=True)
                print(f"✅ Installed {package}")
            except subprocess.CalledProcessError:
                print(f"❌ Failed to install {package}")
        return True
    else:
        print("✅ All packages already installed")
        return True

def get_brew_outdated():
    result = subprocess.run(
        ['brew', 'outdated', '--greedy', '--verbose', '--json=v2'],
        capture_output=True,
        text=True
    )

    stdout = result.stdout.strip()
    if not stdout:
        return []

    try:
        data = json.loads(stdout)
    except json.JSONDecodeError:
        return []

    upgrades = []

    for formula in data.get('formulae') or []:
        name = formula.get('name')
        installed = formula.get('installed_versions') or []
        current = formula.get('current_version')
        if name and installed and current:
            from_version = installed[-1]
            upgrades.append(f"{name} {from_version}->{current}")

    for cask in data.get('casks') or []:
        name = cask.get('name')
        installed = cask.get('installed_versions') or []
        current = cask.get('current_version')
        if isinstance(name, list):
            name = name[0] if name else None
        if name and installed and current:
            from_version = installed[-1]
            upgrades.append(f"{name} {from_version}->{current}")

    return upgrades

def create_brew_update_action():
    def action():
        if shutil.which('brew') is None:
            return False, "", "brew not found"

        before = get_brew_outdated()
        output_parts = []

        update_result = subprocess.run(
            ['brew', 'update'],
            capture_output=True,
            text=True
        )
        output_parts.extend([update_result.stdout or "", update_result.stderr or ""])
        if update_result.returncode != 0:
            return False, "", "".join(output_parts)

        upgrade_result = subprocess.run(
            ['brew', 'upgrade', '--greedy'],
            capture_output=True,
            text=True
        )
        output_parts.extend([upgrade_result.stdout or "", upgrade_result.stderr or ""])
        if upgrade_result.returncode != 0:
            return False, "", "".join(output_parts)

        after = get_brew_outdated()

        note = ""
        if before:
            before_names = {entry.split()[0] for entry in before if entry.split()}
            after_names = {entry.split()[0] for entry in after if entry.split()} if after else set()
            updated_entries = [entry for entry in before if entry.split() and entry.split()[0] not in after_names]
            if updated_entries:
                if len(updated_entries) > 6:
                    shown = ", ".join(updated_entries[:6])
                    note = f"(updated: {shown}, +{len(updated_entries) - 6} more)"
                else:
                    note = f"(updated: {', '.join(updated_entries)})"
            else:
                note = "(brew already up to date)"
        else:
            note = "(brew already up to date)"

        return True, note, "".join(output_parts)

    return action

def get_npm_updates(packages, locks=None):
    packages = list(dict.fromkeys(packages))
    locks = locks or {}

    list_result = subprocess.run(
        ['npm', 'list', '-g', '--json', '--depth=0'],
        capture_output=True,
        text=True
    )

    installed_versions = {}
    if list_result.stdout.strip():
        try:
            data = json.loads(list_result.stdout)
            dependencies = data.get('dependencies', {})
            if isinstance(dependencies, dict):
                for name, info in dependencies.items():
                    if isinstance(info, dict):
                        version = info.get('version')
                        if version:
                            installed_versions[name] = version
        except json.JSONDecodeError:
            pass

    # Only check "outdated" for packages that are not locked.
    unlocked_packages = [p for p in packages if p not in locks]
    outdated_info = {}
    if unlocked_packages:
        outdated_cmd = ['npm', 'outdated', '-g', '--json'] + unlocked_packages
        outdated_result = subprocess.run(
            outdated_cmd,
            capture_output=True,
            text=True
        )

        if outdated_result.returncode not in (0, 1):
            raise subprocess.CalledProcessError(
                outdated_result.returncode,
                outdated_cmd,
                output=outdated_result.stdout,
                stderr=outdated_result.stderr
            )

        stdout = outdated_result.stdout.strip()
        if stdout and stdout != 'null':
            try:
                data = json.loads(stdout)
                if isinstance(data, dict):
                    outdated_info = data
            except json.JSONDecodeError:
                pass

    to_install = []
    updates = []
    installs = []

    for package in packages:
        lock_version = locks.get(package)
        if lock_version:
            installed = installed_versions.get(package)
            if installed != lock_version:
                to_install.append(f"{package}@{lock_version}")
                if installed:
                    updates.append(f"{package}@{lock_version}")
                else:
                    installs.append(f"{package}@{lock_version}")
            # Skip normal outdated handling when locked
            continue

        if package in outdated_info:
            to_install.append(package)
            updates.append(package)
            continue
        if package not in installed_versions:
            to_install.append(package)
            installs.append(package)

    return to_install, updates, installs

def format_package_for_install(package):
    return package if '@' in package[1:] else f"{package}@latest"

def create_npm_update_action(packages, locks=None):
    packages = list(packages)
    locks = locks or {}

    def action():
        to_install, updates, installs = get_npm_updates(packages, locks=locks)
        if not to_install:
            return True, "(up to date)", ""

        install_args = ['npm', 'install', '-g', '-f'] + [format_package_for_install(pkg) for pkg in to_install]

        try:
            result = subprocess.run(
                install_args,
                capture_output=True,
                text=True,
                check=True
            )
            note_parts = []
            if updates:
                note_parts.append(f"updated: {', '.join(updates)}")
            if installs:
                note_parts.append(f"installed: {', '.join(installs)}")
            note = f"({'; '.join(note_parts)})" if note_parts else ''
            output_parts = [part for part in [result.stdout, result.stderr] if part]
            return True, note, "".join(output_parts)
        except subprocess.CalledProcessError as err:
            output_parts = [part for part in [err.stdout, err.stderr] if part]
            output = "".join(output_parts) or str(err)
            return False, "", output

    return action

def schedule_npm_updates(runner):
    if shutil.which('npm') is None:
        print(f"{Colors.RED}❌ npm not found; skipping npm package checks{Colors.RESET}")
        return

    packages = [
        "@anthropic-ai/claude-code",
        "ccusage",
        "@ccusage/codex",
        "ccstatusline",
        "@openai/codex",
        "instant-markdown-d",
        "mcp-proxy",
        "yarn",
        "@google/gemini-cli",
    ]

    runner.add_task("Node Apps Update", action=create_npm_update_action(packages, locks=NPM_PACKAGE_LOCKS))

def main():
    runner = ParallelTaskRunner()

    # Install missing brew packages first
    if not install_brew_packages():
        print("❌ Brew package installation failed")
        sys.exit(1)

    schedule_npm_updates(runner)
    runner.add_task("Homebrew Update", action=create_brew_update_action())
    runner.add_task("Config Git Pull", "cd ~/.config && git pull")
    runner.add_task("Neovim Config Git Pull", "cd ~/.config/nvim && git pull")
    runner.add_task("SConfig Git Pull", "cd ~/.sconfig && git pull")
    runner.add_task( "Agent Tracker Build", "cd ~/.config/agent-tracker && ./install.sh")

    success = runner.run_all()
    sys.exit(0 if success else 1)

if __name__ == "__main__":
    main()