import { Model, DataTypes, Sequelize } from 'sequelize';

export interface SLAConfigurationAttributes {
    id: string;
    activityName: string;
    ownerRole: string;
    tatHours: number;
    tatUnit: 'hours' | 'days';
    isActive: boolean;
}

export interface SLAConfigurationInstance extends Model<SLAConfigurationAttributes>, SLAConfigurationAttributes { }

export default (sequelize: Sequelize) => {
    const SLAConfiguration = sequelize.define<SLAConfigurationInstance>('SLAConfiguration', {
        id: {
            type: DataTypes.UUID,
            defaultValue: DataTypes.UUIDV4,
            primaryKey: true
        },
        activityName: {
            type: DataTypes.STRING,
            allowNull: false
        },
        ownerRole: {
            type: DataTypes.STRING,
            allowNull: false
        },
        tatHours: {
            type: DataTypes.INTEGER,
            allowNull: false
        },
        tatUnit: {
            type: DataTypes.ENUM('hours', 'days'),
            defaultValue: 'days'
        },
        isActive: {
            type: DataTypes.BOOLEAN,
            defaultValue: true
        }
    }, {
        tableName: 'sla_configurations',
        timestamps: true,
        indexes: [
            { fields: ['activityName'] },
            { fields: ['ownerRole'] }
        ]
    });

    (SLAConfiguration as any).associate = (models: any) => {
        SLAConfiguration.hasMany(models.SLAReminder, {
            foreignKey: 'slaConfigId',
            as: 'reminders'
        });
        SLAConfiguration.hasMany(models.SLAEscalationConfig, {
            foreignKey: 'slaConfigId',
            as: 'escalationConfigs'
        });
    };

    return SLAConfiguration;
};