import { Model, DataTypes } from 'sequelize';
import { sequelize } from '@config/database';
import { User } from './User';

export class WorkflowTemplate extends Model {
    public id!: string;
    public name!: string;
    public description!: string;
    public category!: string;
    public priority!: 'low' | 'medium' | 'high';
    public estimatedTime!: string;
    public approvers!: any[];
    public suggestedSLA!: number;
    public isActive!: boolean;
    public createdBy!: string;
    public fields!: any;

    public readonly createdAt!: Date;
    public readonly updatedAt!: Date;
}

WorkflowTemplate.init(
    {
        id: {
            type: DataTypes.UUID,
            defaultValue: DataTypes.UUIDV4,
            primaryKey: true,
            allowNull: false
        },
        name: {
            type: DataTypes.STRING,
            allowNull: false
        },
        description: {
            type: DataTypes.TEXT,
            allowNull: true
        },
        category: {
            type: DataTypes.STRING,
            defaultValue: 'General'
        },
        priority: {
            type: DataTypes.ENUM('low', 'medium', 'high'),
            defaultValue: 'medium'
        },
        estimatedTime: {
            type: DataTypes.STRING,
            defaultValue: 'Variable',
            field: 'estimated_time'
        },
        approvers: {
            type: DataTypes.JSONB,
            defaultValue: []
        },
        suggestedSLA: {
            type: DataTypes.INTEGER,
            defaultValue: 24,
            comment: 'In hours',
            field: 'suggested_sla'
        },
        isActive: {
            type: DataTypes.BOOLEAN,
            defaultValue: true,
            field: 'is_active'
        },
        createdBy: {
            type: DataTypes.UUID,
            allowNull: true,
            field: 'created_by',
            references: {
                model: 'users',
                key: 'user_id'
            }
        },
        fields: {
            type: DataTypes.JSONB,
            defaultValue: {}
        },
        createdAt: {
            type: DataTypes.DATE,
            allowNull: false,
            defaultValue: DataTypes.NOW,
            field: 'created_at'
        },
        updatedAt: {
            type: DataTypes.DATE,
            allowNull: false,
            defaultValue: DataTypes.NOW,
            field: 'updated_at'
        }
    },
    {
        sequelize,
        tableName: 'workflow_templates',
        timestamps: true,
        createdAt: 'created_at',
        updatedAt: 'updated_at'
    }
);