<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\Campaign;
use App\Services\ActivityLogger;
use App\Support\AccessControl;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Gate;

class CampaignController extends Controller
{
    public function index(Request $request): JsonResponse
    {
        $query = Campaign::withCount('leads')->with('assignedAgents:id,name', 'assignedSupervisors:id,name');
        Gate::authorize('viewAny', Campaign::class);
        AccessControl::scopeCampaigns($query, auth()->user());

        if ($request->search) {
            $query->where('name', 'like', "%{$request->search}%");
        }

        if ($request->status) {
            $query->where('status', $request->status);
        }

        return response()->json($query->orderBy('created_at', 'desc')->paginate($request->per_page ?? 15));
    }

    public function store(Request $request): JsonResponse
    {
        Gate::authorize('create', Campaign::class);

        $validated = $request->validate([
            'name' => 'required|string|max:255',
            'description' => 'nullable|string',
            'product_service' => 'nullable|string|max:255',
            'start_date' => 'nullable|date',
            'end_date' => 'nullable|date|after_or_equal:start_date',
            'target' => 'nullable|integer|min:0',
            'status' => 'nullable|string|in:draft,active,paused,completed,archived',
            'agent_ids' => 'nullable|array',
            'agent_ids.*' => 'exists:users,id',
            'supervisor_ids' => 'nullable|array',
            'supervisor_ids.*' => 'exists:users,id',
        ]);

        $campaign = Campaign::create($validated);

        if ($request->agent_ids) {
            $campaign->assignedAgents()->sync($request->agent_ids);
        }
        if ($request->supervisor_ids) {
            $campaign->assignedSupervisors()->sync($request->supervisor_ids);
        }

        ActivityLogger::log('campaign_created', "Campaign {$campaign->name} created", $campaign);

        return response()->json($campaign->load('assignedAgents', 'assignedSupervisors'), 201);
    }

    public function show(Campaign $campaign): JsonResponse
    {
        Gate::authorize('view', $campaign);

        return response()->json(
            $campaign->load([
                'assignedAgents', 'assignedSupervisors', 'salesScript',
                'leads' => fn($q) => $q->with('leadStatus'),
            ])
        );
    }

    public function update(Request $request, Campaign $campaign): JsonResponse
    {
        Gate::authorize('update', $campaign);

        $validated = $request->validate([
            'name' => 'sometimes|string|max:255',
            'description' => 'nullable|string',
            'product_service' => 'nullable|string|max:255',
            'start_date' => 'nullable|date',
            'end_date' => 'nullable|date|after_or_equal:start_date',
            'target' => 'nullable|integer|min:0',
            'status' => 'nullable|string|in:draft,active,paused,completed,archived',
            'agent_ids' => 'nullable|array',
            'agent_ids.*' => 'exists:users,id',
            'supervisor_ids' => 'nullable|array',
            'supervisor_ids.*' => 'exists:users,id',
        ]);

        $campaign->update($validated);

        if ($request->has('agent_ids')) {
            $campaign->assignedAgents()->sync($request->agent_ids);
        }
        if ($request->has('supervisor_ids')) {
            $campaign->assignedSupervisors()->sync($request->supervisor_ids);
        }

        ActivityLogger::log('campaign_updated', "Campaign {$campaign->name} updated", $campaign);

        return response()->json($campaign->load('assignedAgents', 'assignedSupervisors'));
    }

    public function destroy(Campaign $campaign): JsonResponse
    {
        Gate::authorize('delete', $campaign);

        $campaign->delete();
        ActivityLogger::log('campaign_deleted', "Campaign {$campaign->name} deleted");
        return response()->json(['message' => 'کمپین حذف شد']);
    }
}