<?php

use Reservair\Database\Db;

class RsvMembershipProgramRepository {
    private string $table_program;
    private string $table_key;

    public function __construct() {
        $this->table_program = Db::prefix() . 'rsv_membership_program';
        $this->table_key = Db::prefix() . 'rsv_membership_key';
    }

    public function all(?int $limit = null, int $skip = 0): array {
        if ($limit === null) {
            $rows = Db::get_results(
                "SELECT * FROM {$this->table_program} ORDER BY id DESC",
                [],
                ARRAY_A
            );
        } else {
            $rows = Db::get_results(
                "SELECT * FROM {$this->table_program} ORDER BY id DESC LIMIT %d OFFSET %d",
                [$limit, $skip],
                ARRAY_A
            );
        }
        return array_map(fn($row) => RsvMembershipProgram::from_array($row), $rows);
    }

    public function count_all(): int {
        return (int) Db::get_var("SELECT COUNT(*) FROM {$this->table_program}");
    }

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

    public function add(string $name, bool $active): int {
        return Db::insert($this->table_program, [
            'name' => $name,
            'active' => $active ? 1 : 0,
        ]);
    }

    public function update(int $id, string $name, bool $active): int {
        return Db::update(
            $this->table_program,
            [
                'name' => $name,
                'active' => $active ? 1 : 0,
            ],
            ['id' => $id]
        );
    }

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

    public function keys(int $program_id, ?int $limit = null, int $skip = 0): array {
        if ($limit === null) {
            $rows = Db::get_results(
                "SELECT * FROM {$this->table_key} WHERE program_id = %d ORDER BY id",
                [$program_id],
                ARRAY_A
            );
        } else {
            $rows = Db::get_results(
                "SELECT * FROM {$this->table_key} WHERE program_id = %d ORDER BY id LIMIT %d OFFSET %d",
                [$program_id, $limit, $skip],
                ARRAY_A
            );
        }
        return array_map(fn($row) => RsvMembershipKey::from_array($row), $rows);
    }

    public function count_keys(int $program_id): int {
        return (int) Db::get_var(
            "SELECT COUNT(*) FROM {$this->table_key} WHERE program_id = %d",
            [$program_id]
        );
    }

    private function normalize_key(string $key_value): string {
        return preg_replace('/\s+/', ' ', strtolower(trim($key_value)));
    }

    public function add_key(int $program_id, string $key_value): int {
        return Db::insert($this->table_key, [
            'program_id' => $program_id,
            'key_value' => $key_value,
            'key_normalized_value' => $this->normalize_key($key_value)
        ]);
    }

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

    public function key_exists(int $program_id, string $key_value): bool {
        return Db::get_var(
            "SELECT 1 FROM {$this->table_key} k
             INNER JOIN {$this->table_program} p ON p.id = k.program_id
             WHERE p.active = 1 AND k.program_id = %d AND k.key_normalized_value = %s
             LIMIT 1",
            [$program_id, $this->normalize_key($key_value)]
        ) !== null;
    }
}