<?php
namespace App\Controllers\Contact;

use App\Traits\PatchValidationTrait;
use App\Traits\ResponseTrait;
use App\Controllers\BaseController;
use App\Libraries\ValueSet;
use App\Models\Contact\ContactModel;

class ContactController extends BaseController {
    use ResponseTrait;
    use PatchValidationTrait;

    protected $db;
    protected $model;
    protected $rules;
    protected $patchRules;

    public function __construct() {
        $this->db = \Config\Database::connect();
        $this->model = new ContactModel();
        $this->rules = [ 'NameFirst' => 'required' ];
        $this->patchRules = [ 'NameFirst' => 'permit_empty' ];
    }

    public function index() {
        $ContactName = $this->request->getVar('ContactName');
        $Specialty = $this->request->getVar('Specialty');
        $rows = $this->model->getContacts($ContactName, $Specialty);

        if (empty($rows)) {
            return $this->respond([ 'status'  => 'success', 'message' => "no Data.", 'data' => [] ], 200);
        }

        $rows = ValueSet::transformLabels($rows, [
            'Specialty' => 'specialty',
            'Occupation' => 'occupation',
        ]);

        return $this->respond([ 'status' => 'success', 'message'=> "fetch success", 'data' => $rows ], 200);
    }

    public function show($ContactID = null) {
        $model = new ContactModel();
        $row = $model->getContactWithDetail($ContactID);

        if (empty($row)) {
            return $this->respond([ 'status'  => 'success', 'message' => "no Data.", 'data' => null ], 200);
        }

        $row = ValueSet::transformLabels([$row], [
            'Specialty' => 'specialty',
            'Occupation' => 'occupation',
        ])[0];

        return $this->respond([ 'status' => 'success', 'message'=> "fetch success", 'data' => $row ], 200);
    }

    public function delete() {
        try {
            $input = $this->request->getJSON(true);
            $ContactID = $input["ContactID"];
            if (!$ContactID) { return $this->failValidationErrors('ContactID is required.'); }
            $this->model->delete($ContactID);
            return $this->respondDeleted([ 'status' => 'success', 'message' => "Contact with {$ContactID} deleted successfully."]);
        } catch (\Throwable $e) {
            return $this->failServerError('Something went wrong: ' . $e->getMessage());
        }
    }

    public function create() {
        $input = $this->request->getJSON(true);
        if (!$this->validateData($input, $this->rules)) { return $this->failValidationErrors($this->validator->getErrors()); }
        try {
            $result = $this->model->saveContact($input);

            if (($result['status'] ?? 'error') !== 'success') {
                return $this->respond([
                    'status' => 'failed',
                    'message' => $result['message'] ?? 'Failed to create contact',
                    'data' => []
                ], 400);
            }

            return $this->respondCreated([ 'status'  => 'success', 'message' => 'data created successfully', 'data' => $result ], 201);
        } catch (\Throwable $e) {
            return $this->failServerError('Something went wrong: ' . $e->getMessage());
        }
    }

    public function update($ContactID = null) {
        $input = $this->requirePatchPayload($this->request->getJSON(true));
        if ($input === null) {
            return;
        }

        $id = $this->requirePatchId($ContactID, 'ContactID');
        if ($id === null) {
            return;
        }

        $existing = $this->model->find($id);
        if (!$existing) {
            return $this->respond([
                'status' => 'failed',
                'message' => 'Contact not found',
                'data' => []
            ], 404);
        }

        $validationInput = array_intersect_key($input, $this->patchRules);
        if (!empty($validationInput) && !$this->validateData($validationInput, $this->patchRules)) {
            return $this->failValidationErrors($this->validator->getErrors());
        }

        $input['ContactID'] = $id;
        try {
            $this->model->saveContact($input);
            $id = $input['ContactID'];
            return $this->respond([ 'status'  => 'success', 'message' => 'data updated successfully', 'data' => $id ], 200);
        } catch (\Throwable $e) {
            return $this->failServerError('Something went wrong: ' . $e->getMessage());
        }
    }
}
