//
//  UnitCtrl.swift
//  
//
//  Created by Michiel Carman on 11/2/21.
//

import Foundation
import Vapor
import Fluent
import FluentPostgresDriver

final class UnitCtrl{
    //Create Unit
    func create(req: Request) throws -> EventLoopFuture<mdlUnit.Output>{
        let input = try req.content.decode(mdlUnit.Input.self)
        let output = self.createUnit(input)
        return self.save(output, req, input)
        
    }
    
    //Update Unit
    func update(req: Request) throws -> EventLoopFuture<mdlUnit.Output>{
        let input = try req.content.decode(mdlUnit.Input.self)
        return try qbase(req: req).first().unwrap(or: Abort(.notFound)).flatMap{output in self.mapOutput(output, input)
            return self.save(output, req: req)
        }
    }
    
    //Get all Divisions
    func readAll(req: Request) throws -> EventLoopFuture<Page<mdlUnit.Output>>{
        return try qbase(req: req)
            .paginate(for: req)
            .map{
                page in page.map{
                    self.createRead($0)
                }
            }
    }
    //Get 1 Division
    func read(req: Request) throws -> EventLoopFuture<mdlUnit.Output>{
        
        return try qbase(req: req).first().unwrap(or: Abort(.internalServerError)).map{self.createRead($0)}
        
    }
    //Delete 1 Division
    func delete(req: Request) throws -> EventLoopFuture<HTTPStatus>{
        
        guard let id = req.parameters.get("id", as: Int.self) else{
            throw Abort(.badRequest)
        }
        return mdlUnit.find(id, on: req.db).unwrap(or: Abort(.notFound)).flatMap{ $0.delete(on: req.db)}.map{.ok}
    }
    
}

extension UnitCtrl{
    //Query Settings
    func qbase(req: Request) throws -> QueryBuilder<mdlUnit> {
        let query = mdlUnit.query(on: req.db).with(\.$datatype).with(\.$locations).with(\.$inspectioncategoryitemspecitems)
        if let id = req.parameters.get("id", as: Int.self){
            return query.filter(\.$id == id)
        } else{
            return query
        }
    }
    //create Output
    func createRead(_ output: mdlUnit) -> mdlUnit.Output {
        return mdlUnit.Output(
            id: output.id!,
            name: output.name,
            description: output.description,
            isactive: output.isactive,
            createdate: output.createdate,
            createuserid: output.createuserid,
            updatedate: output.updatedate,
            updateuserid: output.updateuserid,
            datatype: output.$datatype.value!,
            locations: output.$locations.value!,
            inspectioncategoryitemspecitems: output.$inspectioncategoryitemspecitems.value!
        )
    }
    
    func mapOutput(_ output: Optional<mdlUnit>.WrappedType, _ input: mdlUnit.Input){
        output.name = input.name;
        output.description = input.description;
        output.isactive = input.isactive;
        output.createdate = input.createdate;
        output.updatedate = input.updatedate;
        output.createuserid = input.createuserid;
        output.updateuserid = input.updateuserid;
        output.$datatype.id = input.datatype.id!
    }
    
    func createUnit(_ input: mdlUnit.Input) -> mdlUnit {
        return mdlUnit(id: input.id ?? nil, name: input.name, description: input.description, isactive: input.isactive, createuserid: input.createuserid ?? -1, createdate: input.createdate, updateuserid: input.updateuserid ?? -1, updatedate: input.updatedate, datatype: input.datatype, locations: input.locations, inspectioncategoryitemspecitems: input.inspectioncategoryitemspecitems)
    }
    
    //update function
    func save(_ output: Optional<mdlUnit>.WrappedType, req: Request) -> EventLoopFuture<mdlUnit.Output> {
        return output.save(on: req.db).map{mdlUnit.Output(id: output.id!, name: output.name, description: output.description, isactive: output.isactive, createdate: output.createdate, createuserid: output.createuserid, updatedate: output.updatedate, updateuserid: output.updateuserid, datatype: output.datatype, locations: output.locations, inspectioncategoryitemspecitems: output.inspectioncategoryitemspecitems)}
    }
    //create function
    func save(_ output: mdlUnit, _ req: Request, _ input: mdlUnit.Input) -> EventLoopFuture<mdlUnit.Output> {
        return output.save(on: req.db).map{mdlUnit.Output(id: output.id!, name: input.name, description: input.description, isactive: input.isactive, createdate: input.createdate, createuserid: input.createuserid, updatedate: input.updatedate, updateuserid: input.updateuserid, datatype: input.datatype, locations: input.locations, inspectioncategoryitemspecitems: input.inspectioncategoryitemspecitems)}
    }
    
}
extension UnitCtrl: RouteCollection{
    func boot(routes: RoutesBuilder) throws{
        let apigroup = routes.grouped("units")
        apigroup.get("", use: readAll)
        apigroup.get(":id", use: read)
        apigroup.post("", use: create)
        apigroup.post(":id", use: update)
        apigroup.delete(":id", use: delete)
        
        
    }
}