<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Password;
use Illuminate\Support\Facades\Validator;
use App\Models\Admin;
use App\Models\Bank;
use App\Models\Organization;
use Illuminate\Support\Facades\Auth;

class ResetNonUserPasswordController extends Controller
{
    /**
     * Display the form to request a password reset link.
     */
    public function showLinkRequestForm(Request $request, $profileType)
    {
        $profileId = $request->query('profileId');
        if ($profileId) {
            $profile = $this->resolveProfileById($profileType, $profileId);
            if ($profile && !empty($profile->password_change_disabled)) {
                return redirect()->back()->withErrors(['email' => __('Password changes are disabled for this account.')]);
            }
            // Block if the user's role for this profile does not allow password changes
            $user = Auth::guard('web')->user();
            if ($user && !$this->userRoleAllowsPasswordChange($user, $profileType, $profileId)) {
                return redirect()->back()->withErrors(['email' => __('Password changes are disabled for this account.')]);
            }
        }

        return view('auth.forgot-non-user-password', [
            'profileType' => $profileType,
            'profileId'   => $profileId,
        ]);
    }

    /**
     * Handle sending the password reset link.
     */
    public function sendResetLinkEmail(Request $request, $profileType)
    {
        $validator = Validator::make($request->all(), ['email' => 'required|email']);
        if ($validator->fails()) {
            return back()->withErrors($validator);
        }

        // Resolve profile and check password_change_disabled + role permission
        $profileId = $request->input('profileId');
        $profile = $profileId
            ? $this->resolveProfileById($profileType, $profileId)
            : $this->resolveProfileByEmail($profileType, $request->input('email'));
        if ($profile && !empty($profile->password_change_disabled)) {
            return back()->withErrors(['email' => __('Password changes are disabled for this account.')]);
        }
        $user = Auth::guard('web')->user();
        $resolvedId = $profileId ?? ($profile ? $profile->id : null);
        if ($user && $resolvedId && !$this->userRoleAllowsPasswordChange($user, $profileType, $resolvedId)) {
            return back()->withErrors(['email' => __('Password changes are disabled for this account.')]);
        }

        $broker = $this->getPasswordBroker($profileType);

        $status = Password::broker($broker)->sendResetLink(
            $request->only('email')
        );

        return $status === Password::RESET_LINK_SENT
            ? back()->with('status', __($status))
            : back()->withErrors(['email' => __($status)]);
    }

    /**
     * Display the password reset view for the given token.
     *
     * If no token is present, display the link request form.
     */
    public function showResetForm(Request $request, $profileType, $token = null)
    {
        if (is_null($token)) {
            return $this->showLinkRequestForm($profileType);
        }

        $email = $request->query('email');

        return view('auth.reset-non-user-password', [
            'token' => $token,
            'email' => $email,
            'profileType' => $profileType
        ]);
    }

    /**
     * Reset the given profile's password.
     */
    public function reset(Request $request, $profileType)
    {
        // Dynamically get the password validation rules from the config
        $passwordRules = timebank_config('rules.profile_' . strtolower($profileType) . '.password', ['required', 'string', 'min:8', 'confirmed']);

        $validator = Validator::make($request->all(), [
            'token'    => 'required',
            'email'    => 'required|email',
            'password' => $passwordRules,
        ]);

        if ($validator->fails()) {
            // Store errors in a persistent (non-flash) session key so Livewire
            // background requests don't consume the flash before the browser arrives.
            session(['password_reset_errors' => $validator->errors()->toArray()]);
            return redirect(url()->previous())->withInput($request->only('email'));
        }

        $broker = $this->getPasswordBroker($profileType);

        $passwordChangeDisabled = false;
        $status = Password::broker($broker)->reset(
            $request->only('email', 'password', 'password_confirmation', 'token'),
            function ($profile, $password) use (&$passwordChangeDisabled) {
                if (!empty($profile->password_change_disabled)) {
                    $passwordChangeDisabled = true;
                    return;
                }
                $profile->forceFill([
                    'password' => Hash::make($password),
                ])->save();
            }
        );

        if ($passwordChangeDisabled) {
            session(['password_reset_errors' => ['password' => [__('Password changes are disabled for this account.')]]]);
            return redirect(url()->previous())->withInput($request->only('email'));
        }

        if ($status === Password::PASSWORD_RESET) {
            session()->forget('password_reset_errors');
            $loginPath = parse_url(route('login'), PHP_URL_PATH);
            return redirect($loginPath)->with('status', __('passwords.reset'));
        }

        session(['password_reset_errors' => ['email' => [__($status)]]]);
        return redirect(url()->previous())->withInput($request->only('email'));
    }

    /**
     * Get the password broker for the given profile type.
     */
    private function getPasswordBroker($profileType)
    {
        // Ensure this maps to the keys in config/auth.php 'passwords'
        $brokers = [
            'admin' => 'admins',
            'bank' => 'banks',
            // 'organization' => 'organizations', // etc.
        ];
        // Fallback to 'users' broker if profileType doesn't match,
        // or handle as an error if only specific profile types are allowed here.
        return $brokers[strtolower($profileType)] ?? 'users';
    }

    private function resolveProfileById($profileType, $id)
    {
        $modelMap = [
            'admin'        => Admin::class,
            'bank'         => Bank::class,
            'organization' => Organization::class,
        ];
        $model = $modelMap[strtolower($profileType)] ?? null;
        return $model ? $model::find((int) $id) : null;
    }

    private function resolveProfileByEmail($profileType, $email)
    {
        $modelMap = [
            'admin'        => Admin::class,
            'bank'         => Bank::class,
            'organization' => Organization::class,
        ];
        $model = $modelMap[strtolower($profileType)] ?? null;
        return $model ? $model::where('email', $email)->first() : null;
    }

    private function userRoleAllowsPasswordChange($user, string $profileType, $profileId): bool
    {
        $typeMap = [
            'admin'        => ['prefix' => 'Admin',        'model' => \App\Models\AdminRole::class,        'permission' => 'admin change-password'],
            'bank'         => ['prefix' => 'Bank',         'model' => \App\Models\OrganizationRole::class, 'permission' => 'org change-password'],
            'organization' => ['prefix' => 'Organization', 'model' => \App\Models\OrganizationRole::class, 'permission' => 'org change-password'],
        ];

        $config = $typeMap[strtolower($profileType)] ?? null;
        if (!$config) {
            return true;
        }

        $prefix = "{$config['prefix']}\\{$profileId}\\";
        $scopedRoles = $user->roles->filter(fn($r) => str_starts_with($r->name, $prefix));

        foreach ($scopedRoles as $spatieRole) {
            $roleName = str_replace($prefix, '', $spatieRole->name);
            $role = $config['model']::where('name', $roleName)->first();
            if ($role && in_array($config['permission'], $role->permissions ?? [])) {
                return true;
            }
        }

        return false;
    }
}