<?php

namespace App\Http\Controllers;

use App\Models\Employee;
use App\Models\MeetingMinute;
use App\Models\Meeting;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Validator;
use Inertia\Inertia;

class MeetingMinuteController extends Controller
{
    public function index(Request $request)
    {
        if (Auth::user()->can('manage-meeting-minutes')) {
            $query = MeetingMinute::with(['meeting.type', 'recorder'])->where(function ($q) {
                if (Auth::user()->can('manage-any-meeting-minutes')) {
                    $q->whereIn('created_by',  getCompanyAndUsersId());
                } elseif (Auth::user()->can('manage-own-meeting-minutes')) {
                    $q->where('created_by', Auth::id())->orWhere('recorded_by', Auth::id());
                } else {
                    $q->whereRaw('1 = 0');
                }
            });

            if ($request->has('search') && !empty($request->search)) {
                $query->where(function ($q) use ($request) {
                    $q->where('topic', 'like', '%' . $request->search . '%')
                        ->orWhere('content', 'like', '%' . $request->search . '%')
                        ->orWhereHas('meeting', function ($mq) use ($request) {
                            $mq->where('title', 'like', '%' . $request->search . '%');
                        });
                });
            }

            if ($request->has('type') && !empty($request->type) && $request->type !== 'all') {
                $query->where('type', $request->type);
            }

            if ($request->has('meeting_id') && !empty($request->meeting_id) && $request->meeting_id !== 'all') {
                $query->where('meeting_id', $request->meeting_id);
            }

            if ($request->has('recorded_by') && !empty($request->recorded_by) && $request->recorded_by !== 'all') {
                $query->where('recorded_by', $request->recorded_by);
            }

            // Handle sorting
            if ($request->has('sort_field') && !empty($request->sort_field)) {
                $sortField = $request->sort_field;
                $sortDirection = $request->sort_direction ?? 'asc';
                
                if (in_array($sortField, ['topic', 'recorded_at'])) {
                    $query->orderBy($sortField, $sortDirection);
                } else {
                    $query->orderBy('id', 'desc');
                }
            } else {
                $query->orderBy('id', 'desc');
            }

            $meetingMinutes = $query->paginate($request->per_page ?? 10);

            $meetings = Meeting::whereIn('created_by', getCompanyAndUsersId())
                ->select('id', 'title', 'meeting_date')
                ->orderBy('meeting_date', 'desc')
                ->get();

            $employees = User::whereIn('created_by', getCompanyAndUsersId())
                ->where('type', 'employee')
                ->select('id', 'name')
                ->get();

            return Inertia::render('meetings/meeting-minutes/index', [
                'meetingMinutes' => $meetingMinutes,
                'meetings' => $meetings,
                'employees' => $this->getFilteredEmployees(),
                'filters' => $request->all(['search', 'type', 'meeting_id', 'recorded_by', 'per_page', 'sort_field', 'sort_direction']),
            ]);
        } else {
            return redirect()->back()->with('error', __('Permission Denied.'));
        }
    }


    private function getFilteredEmployees()
    {
        // Get employees for filter dropdown (compatible with getFilteredEmployees logic)
        $employeeQuery = Employee::whereIn('created_by', getCompanyAndUsersId());

        if (Auth::user()->can('manage-own-meeting-minutes') && !Auth::user()->can('manage-any-meeting-minutes')) {
            $employeeQuery->where(function ($q) {
                $q->where('created_by', Auth::id())->orWhere('user_id', Auth::id());
            });
        }

        $employees = User::emp()
            ->with('employee')
            ->whereIn('created_by', getCompanyAndUsersId())
            ->where('status', 'active')
            ->whereIn('id', $employeeQuery->pluck('user_id'))
            ->select('id', 'name')
            ->get()
            ->map(function ($user) {
                return [
                    'id' => $user->id,
                    'name' => $user->name,
                    'employee_id' => $user->employee->employee_id ?? '',
                ];
            });
        return $employees;
    }

    public function store(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'meeting_id' => 'required|exists:meetings,id',
            'topic' => 'required|string|max:255',
            'content' => 'required|string',
            'type' => 'required|in:Discussion,Decision,Action Item,Note',
            'recorded_by' => 'required|exists:users,id',
            'recorded_at' => 'nullable|date',
        ]);

        if ($validator->fails()) {
            return redirect()->back()->withErrors($validator)->withInput();
        }

        MeetingMinute::create([
            'meeting_id' => $request->meeting_id,
            'topic' => $request->topic,
            'content' => $request->content,
            'type' => $request->type,
            'recorded_by' => $request->recorded_by,
            'recorded_at' => $request->recorded_at ?? now(),
            'created_by' => creatorId(),
        ]);

        return redirect()->back()->with('success', __('Meeting minute created successfully'));
    }

    public function update(Request $request, MeetingMinute $meetingMinute)
    {
        if (!in_array($meetingMinute->created_by, getCompanyAndUsersId())) {
            return redirect()->back()->with('error', __('You do not have permission to update this minute'));
        }

        $validator = Validator::make($request->all(), [
            'meeting_id' => 'required|exists:meetings,id',
            'topic' => 'required|string|max:255',
            'content' => 'required|string',
            'type' => 'required|in:Discussion,Decision,Action Item,Note',
            'recorded_by' => 'required|exists:users,id',
            'recorded_at' => 'nullable|date',
        ]);

        if ($validator->fails()) {
            return redirect()->back()->withErrors($validator)->withInput();
        }

        $meetingMinute->update([
            'meeting_id' => $request->meeting_id,
            'topic' => $request->topic,
            'content' => $request->content,
            'type' => $request->type,
            'recorded_by' => $request->recorded_by,
            'recorded_at' => $request->recorded_at ?? $meetingMinute->recorded_at,
        ]);

        return redirect()->back()->with('success', __('Meeting minute updated successfully'));
    }

    public function destroy(MeetingMinute $meetingMinute)
    {
        if (!in_array($meetingMinute->created_by, getCompanyAndUsersId())) {
            return redirect()->back()->with('error', __('You do not have permission to delete this minute'));
        }

        $meetingMinute->delete();
        return redirect()->back()->with('success', __('Meeting minute deleted successfully'));
    }
}