<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Services\Api\ApiService;
use Illuminate\Http\Request;

class SystemParameterController extends Controller
{
    protected ApiService $apiService;

    public function __construct(ApiService $apiService)
    {
        $this->apiService = $apiService;
    }

    public function index()
    {
        try {
            $response = $this->apiService->get('/system-parameters');
            
            if ($response->successful()) {
                return view('pages.system-parameters', [
                    'parameters' => $response->json()['data']
                ]);
            }

            return back()->with('error', 'Unable to fetch system parameters.');
        } catch (\Exception $e) {
            return back()->with('error', 'Service unavailable.');
        }
    }

    public function store(Request $request)
    {
        $validated = $request->validate([
            'name' => 'required|string|max:255|unique:system_parameters,name',
            'value' => 'required|string',
            'type' => 'required|string|in:String,Number,Boolean,JSON',
            'description' => 'required|string'
        ]);

        try {
            // Format value based on type
            $validated['value'] = $this->formatValue($validated['value'], $validated['type']);

            $response = $this->apiService->post('/system-parameters', $validated);

            if ($response->successful()) {
                return redirect()->route('system-parameters')
                    ->with('success', 'System parameter created successfully.');
            }

            return back()->withErrors($response->json()['errors']);
        } catch (\Exception $e) {
            return back()->with('error', 'Unable to create system parameter.');
        }
    }

    public function update(Request $request, $id)
    {
        $validated = $request->validate([
            'name' => 'required|string|max:255|unique:system_parameters,name,'.$id,
            'value' => 'required|string',
            'type' => 'required|string|in:String,Number,Boolean,JSON',
            'description' => 'required|string'
        ]);

        try {
            // Format value based on type
            $validated['value'] = $this->formatValue($validated['value'], $validated['type']);

            $response = $this->apiService->put("/system-parameters/{$id}", $validated);

            if ($response->successful()) {
                return redirect()->route('system-parameters')
                    ->with('success', 'System parameter updated successfully.');
            }

            return back()->withErrors($response->json()['errors']);
        } catch (\Exception $e) {
            return back()->with('error', 'Unable to update system parameter.');
        }
    }

    public function destroy($id)
    {
        try {
            $response = $this->apiService->delete("/system-parameters/{$id}");

            if ($response->successful()) {
                return redirect()->route('system-parameters')
                    ->with('success', 'System parameter deleted successfully.');
            }

            return back()->with('error', 'Unable to delete system parameter.');
        } catch (\Exception $e) {
            return back()->with('error', 'Service unavailable.');
        }
    }

    protected function formatValue($value, $type)
    {
        switch ($type) {
            case 'Number':
                return is_numeric($value) ? (float) $value : $value;
            case 'Boolean':
                return filter_var($value, FILTER_VALIDATE_BOOLEAN);
            case 'JSON':
                return is_string($value) && json_decode($value) ? $value : json_encode($value);
            default:
                return (string) $value;
        }
    }
}