<?php

namespace App\Models;

use App\Models\BaseModel;
use Illuminate\Support\Facades\DB;

class Configuration extends BaseModel
{
    protected $table = 'configuration';

    // The legacy table only has id/config_key/config_value.
    public $timestamps = false;

    protected $fillable = [
        'config_key',
        'config_value',
    ];

    /* =========================
     * legacy method equivalents
     * ========================= */

    /**
     * Get configuration value by key (deterministic in case duplicates exist).
     */
    public static function getConfigValueByKey(string $key): ?string
    {
        try {
            $row = static::query()
                ->where('config_key', $key)
                ->orderByDesc('id')
                ->first();
        } catch (\Throwable $e) {
            if (app()->runningInConsole()) {
                return null;
            }
            throw $e;
        }

        return $row ? (string) $row->config_value : null;
    }

    /**
     * Set configuration value by key.
     * If duplicates exist, update ALL of them to avoid inconsistent reads.
     */
    public static function setConfigValueByKey(string $key, string $value): bool
    {
        $count = static::query()->where('config_key', $key)->count();

        if ($count > 0) {
            $affected = static::query()
                ->where('config_key', $key)
                ->update(['config_value' => $value]);

            return $affected >= 0;
        }

        $row = static::query()->create([
            'config_key'   => $key,
            'config_value' => $value,
        ]);

        return !empty($row->id);
    }

    /**
     * Retrieve all configuration rows.
     */
    public static function getAllConfigs()
    {
        return static::query()->get();
    }

    /**
     * Update configuration by id.
     */
    public static function updateConfig(int $id, array $data): bool
    {
        return static::query()->whereKey($id)->update($data) >= 0;
    }

    /**
     * Add new configuration row.
     */
    public static function addConfig(array $data): int
    {
        $row = static::query()->create($data);
        return (int) $row->id;
    }

    /**
     * Backward-compatible helper (keeps your "semester" special-case).
     *
     * NOTE: In Laravel it’s better to call SemesterRangeService directly from services/controllers,
     * but this keeps behavior consistent with the legacy model.
     */
    public static function getConfig(string $key): ?string
    {
        $key = (string) $key;

        if ($key === 'semester') {
            try {
                // If you have this service in Laravel, inject/resolve it from container.
                // This call assumes the service constructor can accept Configuration model (like legacy did).
                $semester = app(\App\Services\SemesterRangeService::class)->getSemesterForDate();
                if (is_string($semester) && $semester !== '') {
                    return $semester;
                }
            } catch (\Throwable $e) {
                // ignore and fall back
            }
        }

        return static::getConfigValueByKey($key);
    }
}