<?php

use Reservair\Database\Db;

class RsvFormSubmitRepository {
    private string $table;

    public function __construct() {
        $this->table = Db::prefix() . 'rsv_form_submit';
    }

    public function add(int $form_id, array $values): int {
        return Db::insert($this->table, [
            'form_id' => $form_id,
            'values'  => json_encode($values),
        ]);
    }

    /** Store the derived template context (field values, slots, pricing) for a submission. */
    public function set_computed(int $id, array $computed): void {
        Db::update($this->table, ['computed' => json_encode($computed)], ['form_submit_id' => $id]);
    }

    /**
     * The derived template context of the most recent submission for a form,
     * or null when the form has no submission carrying computed data.
     *
     * @return array<string,mixed>|null
     */
    public function latest_computed(int $form_id): ?array {
        $value = Db::get_var(
            "SELECT computed FROM {$this->table}
             WHERE form_id = %d AND computed IS NOT NULL
             ORDER BY form_submit_id DESC LIMIT 1",
            [$form_id]
        );
        return $value === null ? null : json_decode($value, true);
    }

    public function delete(int $id): void {
        Db::delete($this->table, ['form_submit_id' => $id]);
    }

    public function get(int $id): ?array {
        $row = Db::get_row(
            "SELECT * FROM {$this->table} WHERE form_submit_id = %d",
            [$id],
            ARRAY_A
        );

        if ($row === null) {
            return null;
        }

        $row['values'] = json_decode($row['values'], true);
        return $row;
    }
}