<?php

namespace App\Models;

use Config\Database;

/**
 * IDEE-5 — lecture proto Radar (exceptions + fils + skills).
 * Le moteur Gmail/Gemini n’écrit pas encore ici.
 */
class RadarModel
{
    private function db()
    {
        return Database::connect();
    }

    public function tablesExist(): bool
    {
        $row = $this->db()->query("SHOW TABLES LIKE 'radar_threads'")->getRowArray();

        return !empty($row);
    }

    public function listExceptions(): array
    {
        return $this->db()->table('radar_exceptions')
            ->where('active', 1)
            ->orderBy('kind', 'ASC')
            ->orderBy('value', 'ASC')
            ->get()
            ->getResultArray();
    }

    public function listThreads(): array
    {
        $rows = $this->db()->table('radar_threads')
            ->orderBy('received_at', 'DESC')
            ->orderBy('id', 'DESC')
            ->get()
            ->getResultArray();

        if ($rows === []) {
            return [];
        }

        $ids = array_column($rows, 'id');
        $skillRows = $this->db()->table('radar_thread_skills')
            ->whereIn('thread_id', $ids)
            ->get()
            ->getResultArray();

        $byThread = [];
        foreach ($skillRows as $s) {
            $byThread[(int) $s['thread_id']][] = $s['skill'];
        }

        foreach ($rows as &$row) {
            $id = (int) $row['id'];
            $row['skills'] = $byThread[$id] ?? [];
            $row['client_url'] = !empty($row['client_id'])
                ? '/index.php/clients/form/' . (int) $row['client_id']
                : '';
            $row['projet_url'] = !empty($row['projet_id'])
                ? '/index.php/projets/form/' . (int) $row['projet_id']
                : '';
        }
        unset($row);

        return $rows;
    }

    /**
     * Insert ou met à jour un fil (dédup gmail_thread_id). Retourne insert|update.
     *
     * @param array<string, mixed> $data
     * @param list<string>         $skills
     */
    public function upsertThread(array $data, array $skills = []): string
    {
        $db = $this->db();
        $existing = $db->table('radar_threads')
            ->where('gmail_thread_id', $data['gmail_thread_id'])
            ->get()
            ->getRowArray();

        if ($existing) {
            $db->table('radar_threads')
                ->where('id', $existing['id'])
                ->update([
                    'mailbox'     => $data['mailbox'],
                    'subject'     => $data['subject'],
                    'from_email'  => $data['from_email'],
                    'from_name'   => $data['from_name'],
                    'gmail_url'   => $data['gmail_url'],
                    'summary'     => $data['summary'],
                    'status'      => $data['status'],
                    'confidence'  => $data['confidence'],
                    'received_at' => $data['received_at'],
                    'is_example'  => 0,
                ]);
            $threadId = (int) $existing['id'];
            $op       = 'update';
        } else {
            $db->table('radar_threads')->insert([
                'gmail_thread_id'    => $data['gmail_thread_id'],
                'mailbox'            => $data['mailbox'],
                'subject'            => $data['subject'],
                'from_email'         => $data['from_email'],
                'from_name'          => $data['from_name'],
                'gmail_url'          => $data['gmail_url'],
                'summary'            => $data['summary'],
                'status'             => $data['status'],
                'confidence'         => $data['confidence'],
                'is_example'         => (int) ($data['is_example'] ?? 0),
                'received_at'        => $data['received_at'],
                'proposed_client_no' => $data['proposed_client_no'] ?? '',
            ]);
            $threadId = (int) $db->insertID();
            $op       = 'insert';
        }

        foreach ($skills as $skill) {
            $skill = strtolower(trim($skill));
            if ($skill === '') {
                continue;
            }
            $exists = $db->table('radar_thread_skills')
                ->where('thread_id', $threadId)
                ->where('skill', $skill)
                ->countAllResults();
            if ($exists === 0) {
                $db->table('radar_thread_skills')->insert([
                    'thread_id' => $threadId,
                    'skill'     => $skill,
                ]);
            }
        }

        return $op;
    }
}