import { ServiceFare, ServiceClass, Service, FareType, Paging } from "entity";
import { NextFunction, Response } from "express";
import { Request } from "express-jwt";
import Joi from "joi";
import { ILogObj, Logger } from "tslog";
import CommonHelper from "../helpers/common";
import { ReturnHelper } from "../helpers/express/return";
import { Language } from "../langs/lang";
import { ServiceFareModel } from "../model/service_fare";
import { ServiceClassModel } from "../model/service_class";
import { ServiceModel } from "../model/service";
import { OrmHelper } from "../helpers/orm";
import moment from "moment";

const log: Logger<ILogObj> = new Logger({
    name: "[ServiceFareController]",
    type: "pretty",
});

export class ServiceFareController {
    static async list(req: Request, res: Response, next: NextFunction): Promise<void | Response> {
        /*
            #swagger.tags = ['Service Fare']
            #swagger.security = [{ "bearerAuth": [] }]
            #swagger.parameters['filter'] = { 
                description: 'Filter data in JSON format. Available fields: {\"any\": \"value\"} for searching by Service.name or service type name (case-insensitive, supports partial match)', 
                in: 'query', 
                type: 'string',
                example: '{\"any\": \"express\"}'
            }
            #swagger.parameters['limit'] = { in: 'query', required: true, type: 'number' }
            #swagger.parameters['page'] = { in: 'query', required: true, type: 'number' }
            #swagger.parameters['with_deleted'] = { in: 'query', required: true, type: 'boolean' }
            #swagger.parameters['order_field'] = { in: 'query', required: true, type: 'string' }
            #swagger.parameters['order_direction'] = { in: 'query', required: true, schema: { '@enum': ['ASC', 'DESC'] } }
        */
        try {
            const schema = Joi.object().keys({
                filter: Joi.string().allow("").optional().label("Filter"),
                page: Joi.number().required().min(1).label("Page"),
                limit: Joi.number().required().min(1).label("Limit"),
                with_deleted: Joi.bool().required().label("With Deleted"),
                order_field: Joi.string().required().label("Order Field"),
                order_direction: Joi.string().valid("ASC", "DESC").uppercase().required().label("Order Direction"),
            });

            let param: Paging = await schema.validateAsync(req.query);

            let filter = param.filter && param.filter !== "" ? JSON.parse(param.filter) : {};

            const offset = (param.page - 1) * param.limit;
            const limit = param.limit;

            const filterAny = filter.any && filter.any !== "" ? String(filter.any) : "";
            let filterObj = { ...filter } as any;
            delete filterObj.any;

            var query = await ServiceModel.list(filterObj);

            const base_query = query
                .select([
                    "Service.id",
                    "Service.name",
                ])
                .leftJoin("Service.serviceType", "st")
                .addSelect("st.name", "service_type_name")
                .leftJoin(
                    qb => {
                        return qb
                            .select('sf."serviceId"', "serviceId")
                            .addSelect("COALESCE(MIN(sf.fare), 0)", "min")
                            .addSelect("COALESCE(MAX(sf.fare), 0)", "max")
                            .from("service_fares", "sf")
                            .innerJoin("fare_type", "ft", 'sf."faretypeId" = ft.id AND ft.deleted_at IS NULL')
                            .innerJoin("service_classes", "sc", 'sf."serviceClassId" = sc.id AND sc.deleted_at IS NULL')
                            .innerJoin("services", "s", 'sf."serviceId" = s.id AND s.deleted_at IS NULL')
                            .groupBy('sf."serviceId"');
                    },
                    "sfa",
                    'sfa."serviceId" = Service.id'
                )
                .addSelect('COALESCE(sfa.min, 0)', "min_fare")
                .addSelect('COALESCE(sfa.max, 0)', "max_fare");

            const res_count = base_query.clone();
            const res_list = base_query
                .orderBy("Service." + param.order_field, param.order_direction)
                .skip(offset)
                .take(limit);

            if (filterAny !== "") {
                const anyVal = filterAny.includes("%") ? filterAny : `%${filterAny}%`;
                res_list.andWhere("(Service.name ILIKE :any OR st.name ILIKE :any)", { any: anyVal });
                res_count.andWhere("(Service.name ILIKE :any OR st.name ILIKE :any)", { any: anyVal });
            }

            if (param.with_deleted) {
                res_count.withDeleted();
                res_list.withDeleted();
            }

            const current_page = param.page;
            const total_count_data = await res_count.getCount();
            const list_data = await res_list.getRawAndEntities();

            const merged = list_data.entities.map((entity, index) => ({
                ...entity,
                min_fare: list_data.raw[index]?.min_fare ?? null,
                max_fare: list_data.raw[index]?.max_fare ?? null,
                service_type_name: list_data.raw[index]?.service_type_name ?? null,
            }));

            const count_data = CommonHelper.countObject(merged);

            return ReturnHelper.successResponselist(res, 200, Language.lang.success_view, count_data, current_page, total_count_data, merged);
        } catch (e: unknown) {
            log.error(e);
            const err = e as Error;
            return ReturnHelper.errorResponse(res, 400, 401, Language.lang.failed_view, err.message);
        }
    }
    
    static async option(req: Request, res: Response, next: NextFunction): Promise<void | Response> {
        /*
            #swagger.tags = ['Service Fare']
            #swagger.security = [{ "bearerAuth": [] }]
        */
        try {
            const [services, fareTypes, serviceClasses] = await Promise.all([
                OrmHelper.DB.getRepository(Service)
                    .createQueryBuilder("Service")
                    .select(["Service.id", "Service.name"])
                    .getMany(),

                OrmHelper.DB.getRepository(FareType)
                    .createQueryBuilder("FareType")
                    .select(["FareType.id", "FareType.name"])
                    .getMany(),

                OrmHelper.DB.getRepository(ServiceClass)
                    .createQueryBuilder("ServiceClass")
                    .select(["ServiceClass.id", "ServiceClass.name"])
                    .getMany(),
            ]);

            // Semua FareType dapat semua ServiceClass
            const fareTypesWithClass = fareTypes.map((ft) => ({
                id: ft.id,
                name: ft.name,
                service_class: serviceClasses.map((sc) => ({
                    id: sc.id,
                    name: sc.name,
                })),
            }));

            // Semua Service dapat semua FareType (yang sudah berisi ServiceClass)
            const list_data = services.map((svc) => ({
                service: {
                    id: svc.id,
                    name: svc.name,
                    faretype: fareTypesWithClass,
                },
            }));

            const total_count_data = list_data.length;
            const count_data = CommonHelper.countObject(list_data);

            return ReturnHelper.successResponselist(
                res, 200,
                Language.lang.success_view,
                count_data,
                1,
                total_count_data,
                list_data
            );

        } catch (e: unknown) {
            log.error(e);
            const err = e as Error;
            return ReturnHelper.errorResponse(res, 400, 401, Language.lang.failed_view, err.message);
        }
    }

    static async create(req: Request, res: Response, next: NextFunction): Promise<void | Response> {
        /*
         #swagger.tags = ['Service Fare']
         #swagger.security = [{ "bearerAuth": [] }]
         #swagger.requestBody = { required: true, content: { "application/json": { schema: { $ref: "#/components/schemas/serviceFare" } } } }
         */
        const queryRunner = OrmHelper.DB.createQueryRunner();
        await queryRunner.startTransaction();
        try {
            const schema = Joi.object().keys({
                service_id: Joi.string().uuid().required().label("Service ID"),
                faretype: Joi.array().items(
                    Joi.object().keys({
                        faretype_id: Joi.string().uuid().required().label("Fare Type ID"),
                        service_class: Joi.array().items(
                            Joi.object().keys({
                                service_class_id: Joi.string().uuid().required().label("Service Class ID"),
                                fare: Joi.number().min(0).allow(null).label("Fare"),
                            })
                        ).min(1).required().label("Service Class"),
                    })
                ).min(1).required().label("Fare Type"),
            });

            let param: any = await schema.validateAsync(req.body);

            // Validasi Service
            let service = await ServiceModel.list({ "Service.id": param.service_id }).then((q) => q.getOne());
            if (!service) throw { message: "Service not found" };

            const savedServiceFares: ServiceFare[] = [];

            // Loop tiap faretype
            for (const ft of param.faretype) {

                // Validasi FareType
                let fareType = await OrmHelper.DB.getRepository("FareType")
                    .createQueryBuilder("FareType")
                    .where("FareType.id = :id", { id: ft.faretype_id })
                    .getOne();
                if (!fareType) throw { message: `Fare Type ID ${ft.faretype_id} not found` };


                for (const sc of ft.service_class) {

                    let serviceClass = await ServiceClassModel.list({ "ServiceClass.id": sc.service_class_id }).then((q) => q.getOne());
                    if (!serviceClass) throw { message: `Service Class ID ${sc.service_class_id} not found` };

                    let serviceFare = await ServiceFareModel.list({
                        "ServiceFare.serviceId": param.service_id,
                        "ServiceFare.faretype": ft.faretype_id,
                        "ServiceFare.serviceClassId": sc.service_class_id,
                    }).then((q) => q.getOne());

                    if (!serviceFare) {
                        serviceFare = new ServiceFare();
                        serviceFare.service = service;
                        serviceFare.faretype = ft.faretype_id;
                        serviceFare.serviceClass = serviceClass;
                        serviceFare.created_by = req.auth?.data.name;
                    }

                    serviceFare.fare = String(sc.fare ?? 0);
                    serviceFare.updated_by = req.auth?.data.name;

                    const saved = await queryRunner.manager.save(serviceFare);
                    savedServiceFares.push(saved);
                }
            }

            await queryRunner.commitTransaction();

            return ReturnHelper.successResponseAny(res, 200, Language.lang.success_insert, savedServiceFares);

        } catch (e: unknown) {
            await queryRunner.rollbackTransaction();
            log.error(e);
            const err = e as Error;
            return ReturnHelper.errorResponse(res, 400, 401, Language.lang.failed_view, err.message);
        } finally {
            await queryRunner.release();
        }
    }

    static async detail(req: Request, res: Response, next: NextFunction): Promise<void | Response> {
        /*
         #swagger.tags = ['Service Fare']
         #swagger.security = [{ "bearerAuth": [] }]
         #swagger.parameters['id'] = { description: 'Service ID', in: 'path', type: 'string' }
         */
        try {
            const schema = Joi.object().keys({
                id: Joi.string().uuid().required().label("Service Id"), // ← label diupdate
            });

            let param: any = await schema.validateAsync(req.params);

            let serviceFare = await ServiceModel.list({ "Service.id": param.id })
                .then((q) =>
                    q
                        .select([
                            "Service.id",
                            "Service.name",
                            "servicefare.id",
                            "servicefare.fare",
                            "serviceClass.id",
                            "serviceClass.name",
                            "faretype.id",
                            "faretype.name",
                        ])
                        .leftJoin("Service.servicefare", "servicefare")
                        .leftJoin("servicefare.serviceClass", "serviceClass")
                        .leftJoin("servicefare.faretype", "faretype")
                        .getOne()
                );

            if (!serviceFare || serviceFare.length === 0) throw { message: "Service Fare Not Found" };

            return ReturnHelper.successResponseAny(res, 200, Language.lang.success_view, serviceFare);
        } catch (e: unknown) {
            log.error(e);
            const err = e as Error;
            return ReturnHelper.errorResponse(res, 400, 401, Language.lang.failed_not_found, err.message);
        }
    }

    static async update(req: Request, res: Response, next: NextFunction): Promise<void | Response> {
        /*
         #swagger.tags = ['Service Fare']
         #swagger.security = [{ "bearerAuth": [] }]
         #swagger.parameters['id'] = { description: 'Service Fare ID', in: 'path', type: 'string' }
         #swagger.requestBody = { required: true, content: { "application/json": { schema: { $ref: "#/components/schemas/serviceFareUpdate" } } } }
         */
        const queryRunner = OrmHelper.DB.createQueryRunner();
        await queryRunner.startTransaction();

        try {
            const schema = Joi.object().keys({
                id: Joi.string().uuid().required().label("Service Fare ID"),
                fare: Joi.number().min(0).required().label("Fare"),
            });

            let param: any = await schema.validateAsync({
                ...req.body,
                id: req.params.id,
            });

            // Cari data berdasarkan ID
            let serviceFare = await ServiceFareModel.list({ "ServiceFare.id": param.id }).then((q) => q.getOne());
            if (!serviceFare) throw { message: "Service Fare " + Language.lang.failed_not_found };

            // Update fare saja
            serviceFare.fare = String(param.fare);
            serviceFare.updated_by = req.auth?.data.name;

            await queryRunner.manager.save(serviceFare);
            await queryRunner.commitTransaction();

            return ReturnHelper.successResponseAny(res, 200, Language.lang.success_update, serviceFare);

        } catch (e: unknown) {
            await queryRunner.rollbackTransaction();
            log.error(e);
            const err = e as Error;
            return ReturnHelper.errorResponse(res, 400, 401, Language.lang.failed_view, err.message);
        } finally {
            await queryRunner.release();
        }
    }

    static async delete(req: Request, res: Response, next: NextFunction): Promise<Response> {
        /*
        #swagger.tags = ['Service Fare']
        #swagger.security = [{ "bearerAuth": [] }]
        #swagger.parameters['id'] = { in: 'path', required: true, type: 'string' }
        #swagger.parameters['hard'] = { in: 'path', description: 'Is Hard Delete', required: false, type: 'boolean' }
        */
        try {
            const schema = Joi.object().keys({
                id: Joi.string().uuid().required().label("ID"),
                hard: Joi.bool().optional().allow("").label("Is hard delete?"),
            });

            const param: { id: string; hard: boolean } = await schema.validateAsync(req.params);

            let affected = 0;
            if (!param.hard) {
                let serviceFare: ServiceFare = await ServiceFareModel.list({ "ServiceFare.id": param.id }).then((q) => q.getOne());

                if (!serviceFare) throw { message: "Service Fare " + Language.lang.failed_not_found };

                serviceFare.deleted_by = req.auth?.data.name;
                serviceFare.deleted_at = moment().toDate();
                await OrmHelper.DB.manager.save(serviceFare);
                affected = 1;
            } else {
                const repo = OrmHelper.DB.getRepository(ServiceFare);
                affected = (await repo.delete({ id: param.id })).affected ?? 0;
            }

            if (affected > 0) {
                return ReturnHelper.successResponseAny(res, 200, Language.lang.success_delete, {});
            } else {
                return ReturnHelper.errorResponse(res, 404, 401, Language.lang.failed_not_found, "");
            }
        } catch (e: unknown) {
            log.error(e);
            const err = e as Error;
            return ReturnHelper.errorResponse(res, 500, 402, Language.lang.failed_delete, err.message);
        }
    }

    static async restore(req: Request, res: Response, next: NextFunction): Promise<Response> {
        /*
        #swagger.tags = ['Service Fare']
        #swagger.security = [{ "bearerAuth": [] }]
        #swagger.parameters['id'] = { in: 'path', required: true, type: 'string' }
        */
        try {
            const schema = Joi.object().keys({
                id: Joi.string().uuid().required().label("ID"),
            });

            const param: any = await schema.validateAsync(req.params);

            const repo = OrmHelper.DB.getRepository(ServiceFare);

            const affected = (await repo.restore({ id: param.id })).affected ?? 0;

            if (affected > 0) {
                return ReturnHelper.successResponseAny(res, 200, Language.lang.success_restore, {});
            } else {
                return ReturnHelper.errorResponse(res, 404, 401, Language.lang.failed_not_found, "");
            }
        } catch (e: unknown) {
            log.error(e);
            const err = e as Error;
            return ReturnHelper.errorResponse(res, 500, 402, Language.lang.failed_restore, err.message);
        }
    }
}