const { Model } = require('flitter-orm')

class VaultModel extends Model {
    static get services() {
        return [...super.services, 'models']
    }

    static get schema() {
        return {
            active: { type: Boolean, default: true },
            name: String,
            user_id: String,
        }
    }

    static async for_user(user) {
        const existing = await this.findOne({
            user_id: user.id,
        })

        if ( existing ) return existing

        const vault = new this({
            name: `${user.first_name} ${user.last_name}'s Vault`,
            user_id: user.id,
        })

        await vault.save()
        await vault.grant_default(user)

        return vault
    }

    async grant_default(user) {
        const Policy = this.models.get('iam:Policy')

        const grants = ['view', 'read', 'update', 'delete', undefined]
        for ( const grant of grants ) {
            const policy = new Policy({
                entity_type: 'user',
                entity_id: user.id,
                access_type: 'allow',
                target_type: 'vault',
                target_id: this.id,
                ...(grant ? {
                    for_permission: true,
                    permission: grant
                } : {})
            })

            await policy.save()
        }
    }

    async to_api() {
        return {
            id: this.id,
            _id: this.id,
            name: this.name,
            active: this.active,
            user_id: this.user_id,
        }
    }
}

module.exports = exports = VaultModel