<?php

namespace App\Http\Controllers\Staff;

use App\DAL\Radiologists;
use App\Domain\ACL\Permission;
use App\Domain\ACL\Role;
use App\Domain\Study\WorkflowLevel;
use App\Http\Controllers\HashedStudyControllerBase;
use App\Http\Requests\AssignPhysicianRequest;
use App\Models\User;
use App\Services\AuditTrail\Activity;

class AssignmentController extends HashedStudyControllerBase
{
    public function show()
    {
        abort_unless(me()->may(Permission::AssignRadiologist), 403);
        $study = $this->getStudy('assignedPhysicians');
        $rads = User::active()
            ->role(Role::Radiologist)
            ->get(['id', 'display_name', 'profile_photo_path', 'first_name', 'last_name', 'created_at'])
            ->each(fn ($rad) => $rad->info = ['workload' => '', 'last_seen' => '']);

        $stats = Radiologists::worklist_stats(3, WorkflowLevel::Finalized->value);
        foreach ($stats as $rad) {
            $found = $rads->where('id', $rad->id)->first();
            if ($found) {
                $found->info['workload'] = $rad->workload;
                $found->info['last_seen'] = $rad->last_seen?->diffForHumans() ?? '-';
            }
        }

        return view('staff.studies.assign-form', compact('study', 'rads'));
    }

    public function remove(AssignPhysicianRequest $request)
    {
        abort_unless(me()->may(Permission::AssignRadiologist), 403);
        $study = $this->getStudy('assignedPhysicians');
        $rad = User::active()->findOrFail($request->input('rad_id'));

        if ($study->isAssigned($rad)) {
            $study->assignedPhysicians()->detach($rad->id);

            if ($study->assignedPhysicians()->count() === 0) {
                $study->update(['assigned_at' => null]);
            }

            audit()
                ->did(Activity::Unassign_Physician)
                ->notes($rad->display_name)
                ->on($study)
                ->log();
        }

        return redirect()->route('staff.worklist.index')->with('success', 'Removed assignment');
    }

    public function save(AssignPhysicianRequest $request)
    {
        abort_unless(me()->may(Permission::AssignRadiologist), 403);
        $study = $this->getStudy('assignedPhysicians');
        $rad = User::active()->findOrFail($request->input('rad_id'));

        $study->assignedPhysicians()->attach($rad->id);
        $study->update(['assigned_at' => now()]);
        audit()
            ->did(Activity::Assign_Physician)
            ->on($study)
            ->notes($rad->display_name)
            ->log();

        return redirect()->route('staff.worklist.index')->with('success', "Assigned study to {$rad->display_name}");
    }
}