import {Database, QueryResult, RunResult, SQLiteValue} from "node-sqlite3-wasm";
import System from "@/electron/database/System";

export interface BookIncidentsTable extends Record<string, SQLiteValue> {
    incident_id: string;
    author_id: string;
    book_id: string;
    title: string;
    hashed_title: string;
    summary: string | null;
    last_update: number;
}

export interface SyncedIncidentResult extends Record<string, SQLiteValue> {
    incident_id: string;
    book_id: string;
    title: string;
    last_update: number;
}

export interface IncidentQuery extends Record<string, SQLiteValue> {
    incident_id: string;
    title: string;
    summary: string;
}

export default class IncidentRepository {
    public static fetchAllIncitentIncidents(userId:string,bookId:string, lang: 'fr' | 'en'):IncidentQuery[]{
        try {
            const db: Database = System.getDb();
            return db.all('SELECT incident_id, title, summary FROM book_incidents WHERE author_id=? AND book_id=?', [userId, bookId]) as IncidentQuery[];
        } catch (e: unknown) {
            if (e instanceof Error) {
                console.error(`DB Error: ${e.message}`);
                throw new Error(lang === 'fr' ? `Impossible de récupérer les incidents.` : `Unable to retrieve incidents.`);
            } else {
                console.error("An unknown error occurred.");
                throw new Error(lang === 'fr' ? "Une erreur inconnue s'est produite." : "An unknown error occurred.");
            }
        }
    }
    
    public static insertNewIncident(incidentId: string, userId: string, bookId: string, encryptedName: string, hashedName: string, lang: 'fr' | 'en'): string {
        let result: RunResult;
        try {
            const db: Database = System.getDb();
            result = db.run('INSERT INTO book_incidents (incident_id,author_id, book_id, title, hashed_title, last_update) VALUES (?,?,?,?,?,?)', [incidentId, userId, bookId, encryptedName, hashedName, System.timeStampInSeconds()]);
        } catch (e: unknown) {
            if (e instanceof Error) {
                console.error(`DB Error: ${e.message}`);
                throw new Error(lang === 'fr' ? `Impossible d'ajouter l'élément déclencheur.` : `Unable to add incident.`);
            } else {
                console.error("An unknown error occurred.");
                throw new Error(lang === 'fr' ? "Une erreur inconnue s'est produite." : "An unknown error occurred.");
            }
        }
        if (!result || result.changes === 0) {
            throw new Error(lang === 'fr' ? `Une erreur s'est produite lors de l'ajout de l'élément déclencheur.` : `Error adding incident.`);
        }
        return incidentId;
    }
    
    public static deleteIncident(userId: string, bookId: string, incidentId: string, lang: 'fr' | 'en'): boolean {
        try {
            const db: Database = System.getDb();
            const result: RunResult = db.run('DELETE FROM book_incidents WHERE author_id=? AND book_id=? AND incident_id=?', [userId, bookId, incidentId]);
            return result.changes > 0;
        } catch (e: unknown) {
            if (e instanceof Error) {
                console.error(`DB Error: ${e.message}`);
                throw new Error(lang === 'fr' ? `Impossible de supprimer l'élément déclencheur.` : `Unable to delete incident.`);
            } else {
                console.error("An unknown error occurred.");
                throw new Error(lang === 'fr' ? "Une erreur inconnue s'est produite." : "An unknown error occurred.");
            }
        }
    }
    public static updateIncident(userId: string, bookId: string, incidentId: string, encryptedIncidentName: string, incidentHashedName: string, incidentSummary: string, lastUpdate: number, lang: 'fr' | 'en'): boolean {
        try {
            const db: Database = System.getDb();
            const result: RunResult = db.run('UPDATE book_incidents SET title=?, hashed_title=?, summary=?, last_update=? WHERE author_id=? AND book_id=? AND incident_id=?', [encryptedIncidentName, incidentHashedName, incidentSummary, lastUpdate, userId, bookId, incidentId]);
            return result.changes > 0;
        } catch (e: unknown) {
            if (e instanceof Error) {
                console.error(`DB Error: ${e.message}`);
                throw new Error(lang === 'fr' ? `Impossible de mettre à jour l'incident.` : `Unable to update incident.`);
            } else {
                console.error("An unknown error occurred.");
                throw new Error(lang === 'fr' ? "Une erreur inconnue s'est produite." : "An unknown error occurred.");
            }
        }
    }
    static async fetchBookIncidents(userId: string, bookId: string, lang: 'fr' | 'en'): Promise<BookIncidentsTable[]> {
        try {
            const db: Database = System.getDb();
            return db.all('SELECT incident_id, author_id, book_id, title, hashed_title, summary, last_update FROM book_incidents WHERE author_id=? AND book_id=?', [userId, bookId]) as BookIncidentsTable[];
        } catch (e: unknown) {
            if (e instanceof Error) {
                console.error(`DB Error: ${e.message}`);
                throw new Error(lang === 'fr' ? `Impossible de récupérer les incidents.` : `Unable to retrieve incidents.`);
            } else {
                throw new Error(lang === 'fr' ? "Une erreur inconnue s'est produite." : "An unknown error occurred.");
            }
        }
    }
    static fetchSyncedIncidents(userId: string, lang: 'fr' | 'en'): SyncedIncidentResult[] {
        try {
            const db: Database = System.getDb();
            return db.all('SELECT incident_id, book_id, title, last_update FROM book_incidents WHERE author_id = ?', [userId]) as SyncedIncidentResult[];
        } catch (e: unknown) {
            if (e instanceof Error) {
                console.error(`DB Error: ${e.message}`);
                throw new Error(lang === 'fr' ? `Impossible de récupérer les incidents synchronisés.` : `Unable to retrieve synced incidents.`);
            } else {
                console.error("An unknown error occurred.");
                throw new Error(lang === 'fr' ? "Une erreur inconnue s'est produite." : "An unknown error occurred.");
            }
        }
    }
    static insertSyncIncident(incidentId: string, authorId: string, bookId: string, title: string, hashedTitle: string, summary: string | null, lastUpdate: number, lang: 'fr' | 'en'): boolean {
        try {
            const db: Database = System.getDb();
            const result: RunResult = db.run(
                `INSERT INTO book_incidents (incident_id, author_id, book_id, title, hashed_title, summary, last_update)
                 VALUES (?, ?, ?, ?, ?, ?, ?)`,
                [incidentId, authorId, bookId, title, hashedTitle, summary, lastUpdate]
            );
            return result.changes > 0;
        } catch (e: unknown) {
            if (e instanceof Error) {
                console.error(`DB Error: ${e.message}`);
                throw new Error(lang === 'fr' ? `Impossible d'insérer l'incident.` : `Unable to insert incident.`);
            } else {
                throw new Error(lang === 'fr' ? "Une erreur inconnue s'est produite." : "An unknown error occurred.");
            }
        }
    }
    static async fetchCompleteIncidentById(id: string, lang: "fr" | "en"):Promise<BookIncidentsTable[]> {
        try {
            const db: Database = System.getDb();
            return db.all(
                `SELECT incident_id, author_id, book_id, title, hashed_title, summary, last_update
                 FROM book_incidents
                 WHERE incident_id = ?`,
                [id]
            ) as BookIncidentsTable[];
        } catch (e:unknown){
            if (e instanceof Error) {
                throw new Error(lang === 'fr' ? `Impossible de récupérer l'incident complet.` : `Unable to retrieve complete incident.`);
            } else {
                throw new Error(lang === 'fr' ? "Une erreur inconnue s'est produite." : "An unknown error occurred.");
            }
        }
    }
    static incidentExist(userId: string, bookId: string, incident_id: string,lang: "fr" | "en"): boolean {
        try {
            const db: Database = System.getDb();
            const result: QueryResult | null = db.get('SELECT 1 FROM book_incidents WHERE book_id=? AND incident_id=? AND author_id=?', [bookId, incident_id, userId]) || null;
            return result !== null;
        } catch (e: unknown) {
            if (e instanceof Error) {
                console.error(`DB Error: ${e.message}`);
                throw new Error(lang === 'fr' ? `Impossible de vérifier l'existence de l'incident.` : `Unable to check incident existence.`);
            } else {
                throw new Error(lang === 'fr' ? "Une erreur inconnue s'est produite." : "An unknown error occurred.");
            }
        }
    }
}