import { DateTime } from 'luxon';
import { column, beforeSave, manyToMany, ManyToMany, hasMany, HasMany } from '@ioc:Adonis/Lucid/Orm';
import Hash from '@ioc:Adonis/Core/Hash';
import Role from './Role';
import Database from '@ioc:Adonis/Lucid/Database';
import Config from '@ioc:Adonis/Core/Config';
import Dataset from './Dataset';
import BaseModel from './BaseModel';

// export default interface IUser {
// 	id: number;
// 	login: string;
// 	email: string;
// 	// password: string;
// 	// createdAt: DateTime;
// 	// updatedAt: DateTime;
// 	// async (user): Promise<void>;
// }

const permissionTable = Config.get('rolePermission.permission_table', 'permissions');
const rolePermissionTable = Config.get('rolePermission.role_permission_table', 'role_has_permissions');

const roleTable = Config.get('rolePermission.role_table', 'roles');
const userRoleTable = Config.get('rolePermission.user_role_table', 'link_accounts_roles');

export default class User extends BaseModel {
    public static table = 'accounts';

    @column({ isPrimary: true })
    public id: number;

    @column()
    public login: string;

    @column()
    public email: string;

    @column({ serializeAs: null })
    public password: string;

    @column.dateTime({ autoCreate: true })
    public createdAt: DateTime;

    @column.dateTime({ autoCreate: true, autoUpdate: true })
    public updatedAt: DateTime;

    @beforeSave()
    public static async hashPassword(user) {
        if (user.$dirty.password) {
            user.password = await Hash.make(user.password);
        }
    }

    @manyToMany(() => Role, {
        pivotForeignKey: 'account_id',
        pivotRelatedForeignKey: 'role_id',
        pivotTable: 'link_accounts_roles',
    })
    public roles: ManyToMany<typeof Role>;

    @hasMany(() => Dataset, {
        foreignKey: 'account_id',
    })
    public datasets: HasMany<typeof Dataset>;

    // https://github.com/adonisjs/core/discussions/1872#discussioncomment-132289
    public async getRoles(this: User): Promise<string[]> {
        const test = await this.related('roles').query();
        return test.map((role) => role.name);
    }

    public async can(permissionNames: Array<string>): Promise<boolean> {
        // const permissions = await this.getPermissions()
        // return Acl.check(expression, operand => _.includes(permissions, operand))
        const hasPermission = await this.checkHasPermissions(this, permissionNames);
        return hasPermission;
    }

    private async checkHasPermissions(user: User, permissionNames: Array<string>): Promise<boolean> {
        let permissionPlaceHolder = '(';
        let placeholders = new Array(permissionNames.length).fill('?');
        permissionPlaceHolder += placeholders.join(',');
        permissionPlaceHolder += ')';

        let {
            rows: {
                0: { permissioncount },
            },
        } = await Database.rawQuery(
            'SELECT count("p"."name") as permissionCount FROM ' +
                roleTable +
                ' r INNER JOIN ' +
                userRoleTable +
                ' ur ON ur.role_id=r.id AND "ur"."account_id"=? ' +
                ' INNER JOIN ' +
                rolePermissionTable +
                ' rp ON rp.role_id=r.id ' +
                ' INNER JOIN ' +
                permissionTable +
                ' p ON rp.permission_id=p.id AND "p"."name" in ' +
                permissionPlaceHolder +
                ' LIMIT 1',
            [user.id, ...permissionNames],
        );

        return permissioncount > 0;
    }
}

// export default User;