//
//  ItemCtrl.swift
//  
//
//  Created by Michiel Carman on 11/9/21.
//

import Foundation
import Vapor
import Fluent
import FluentPostgresDriver

final class ItemCtrl{
    //Create Unit
    func create(req: Request) throws -> EventLoopFuture<mdlItem.Output>{
        let input = try req.content.decode(mdlItem.Input.self)
        let output = self.createUnit(input)
        return self.save(output, req, input)
        
    }
    
    //Update Unit
    func update(req: Request) throws -> EventLoopFuture<mdlItem.Output>{
        let input = try req.content.decode(mdlItem.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<mdlItem.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<mdlItem.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 mdlItem.find(id, on: req.db).unwrap(or: Abort(.notFound)).flatMap{ $0.delete(on: req.db)}.map{.ok}
    }
    
}
extension ItemCtrl{
    //Query Settings
    func qbase(req: Request) throws -> QueryBuilder<mdlItem> {
        let query = mdlItem.query(on:  req.db)
            .with(\.$category)
            .with(\.$code)
            .with(\.$inputtype)
            .with(\.$specs)
            .with(\.$responsetypes)
            .with(\.$templatecategoryitems)
            .with(\.$inspectioncategoryitems)
        if let id = req.parameters.get("id", as: Int.self){
            return query.filter(\.$id == id)
        } else{
            return query
        }
    }
    //create Output
    func createRead(_ output: mdlItem) -> mdlItem.Output {
        return mdlItem.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,
            category: output.$category.value!,
            code: output.$code.value!,
            inputtype: output.$inputtype.value!,
            responsetypes: output.$responsetypes.value!
            , specs: output.$specs.value!,
            templatecategoryitems: output.$templatecategoryitems.value!,
            inspectioncategoryitems: output.$inspectioncategoryitems.value!
        )
    }
    
    func mapOutput(_ output: Optional<mdlItem>.WrappedType, _ input: mdlItem.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.$category.id = input.category.id!;
        output.$code.id = input.code.id!;
        output.$inputtype.id = input.inputtype.id!;
        output.$specs.value = input.specs;
        output.$templatecategoryitems.value = input.templatecategoryitems;
        output.$inspectioncategoryitems.value = input.inspectioncategoryitems;
        output.$responsetypes.value = input.responsetypes;
    }
    
    func createUnit(_ input: mdlItem.Input) -> mdlItem {
        return mdlItem(
            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
            , responsetypes: input.responsetypes
            , specs: input.specs
            , templatecategoryitems: input.templatecategoryitems
            , inspectioncategoryitems: input.inspectioncategoryitems
        )
    }
    
    //update function
    func save(_ output: Optional<mdlItem>.WrappedType, req: Request) -> EventLoopFuture<mdlItem.Output> {
        return output
            .save(on: req.db)
            .map{mdlItem.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
                , category: output.category
                , code: output.code
                , inputtype: output.inputtype
                , responsetypes: output.responsetypes
                , specs: output.specs
                , templatecategoryitems: output.templatecategoryitems
                , inspectioncategoryitems: output.inspectioncategoryitems
            )
        }
    }
    //create function
    func save(_ output: mdlItem, _ req: Request, _ input: mdlItem.Input) -> EventLoopFuture<mdlItem.Output> {
        return output
            .save(on: req.db)
            .map{
                mdlItem.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
                    , category: input.category
                    , code: input.code
                    , inputtype: input.inputtype
                    , responsetypes: input.responsetypes
                    , specs: input.specs
                    , templatecategoryitems: input.templatecategoryitems
                    , inspectioncategoryitems: input.inspectioncategoryitems
                )
                
            }
    }
    
}
extension ItemCtrl: RouteCollection{
    func boot(routes: RoutesBuilder) throws{
        let apigroup = routes.grouped("items")
        apigroup.get("", use: readAll)
        apigroup.get(":id", use: read)
        apigroup.post("", use: create)
        apigroup.post(":id", use: update)
        apigroup.delete(":id", use: delete)
        
        
    }
}