package main

import (
    "os"
    "strings"
    "strconv"
    "fmt"
    "time"

    "github.com/abiosoft/ishell"
    "github.com/fatih/color"
)


func interact() {
    stdOut()
    shell := ishell.New()

    //fmt.Println(os.Args)
    //cyan := color.New(color.FgCyan).SprintFunc()
    //yellow := color.New(color.FgYellow).SprintFunc()
    green := color.New(color.FgGreen).SprintFunc()
    boldBlue := color.New(color.FgBlue, color.Bold).SprintFunc()
    boldRed := color.New(color.FgRed, color.Bold).SprintFunc()

    boldMag := color.New(color.FgMagenta, color.Bold).SprintFunc()
    boldCyan := color.New(color.FgCyan, color.Bold).SprintFunc()
    boldGreen := color.New(color.FgGreen, color.Bold).SprintFunc()
    boldYell := color.New(color.FgYellow, color.Bold).SprintFunc()

    promptcol := boldBlue

    // display info.
    shell.Println("Starting interactive Shell")
    shell.SetPrompt(promptcol(">>>"))

    shell.AddCmd(&ishell.Cmd{
        Name: "new",
        Help: "Start new Project",
        LongHelp: "If no Task is currently running a new project will be added to database and activated",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            //c.Println(boldGreen("Start New Project"))
            newProject()
            showLastProject()
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "config",
        Help: "View and Edit Configuration",
        LongHelp: "Contains the location of the database file and the Personal Data needed for billing",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            //c.Println(boldGreen("Start New Project"))
            editConf()
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "status",
        Help: "Show Current Project and Tasks",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            //c.Println(boldGreen("Start New Project"))
            stdOut()
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "add",
        Help: "Add new Customer",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            //c.Println(boldGreen("Start New Project"))
            addCustomer()
            c.Println(promptcol("______________________"))
        },
    })

   shell.AddCmd(&ishell.Cmd{
        Name: "startnow",
        Help: "Start a new Task immediately",
        Func: func(c *ishell.Context) {
            //c.Println(boldGreen("New Task"))
            newTask(currproject.id)
            stdOut()
            c.Println(promptcol("______________________"))
        },
    })

   shell.AddCmd(&ishell.Cmd{
        Name: "stopnow",
        Help: "Stop the currently Open Task immediately",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            //c.Println(boldGreen("Stoping Task",opentask.id))
            closeTask()
            stdOut()
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "deletebill",
        Help: "<id> Delete a Bill with the following id",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            arg := "none"
            if len(c.Args) > 0 {
                arg = strings.Join(c.Args, " ")
                argi,err := strconv.Atoi(arg)
                if err == nil{
                    //c.Println(boldGreen("Opening Project",argi))
                    deleteBill(argi)
                    stdOut()
                }else{
                    c.Println(boldRed(arg,"is not a valid id!"))
                }
            }else{
                c.Println(boldRed("deletetask <id> - Please enter an id"))
                showLastBills(0)
            }
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "deletetask",
        Help: "<id> Delete a Task with the following id",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            arg := "none"
            if len(c.Args) > 0 {
                arg = strings.Join(c.Args, " ")
                argi,err := strconv.Atoi(arg)
                if err == nil{
                    //c.Println(boldGreen("Opening Project",argi))
                    deleteTask(argi)
                    stdOut()
                }else{
                    c.Println(boldRed(arg,"is not a valid id!"))
                }
            }else{
                c.Println(boldRed("deletetask <id> - Please enter an id"))
                allProjects()
            }
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "project",
        Help: "<id> Open a Project of the following id",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            arg := "none"
            if len(c.Args) > 0 {
                arg = strings.Join(c.Args, " ")
                argi,err := strconv.Atoi(arg)
                if err == nil{
                    //c.Println(boldGreen("Opening Project",argi))
                    setProject(argi)
                    stdOut()
                }else{
                    c.Println(boldRed(arg,"is not a valid id!"))
                }
            }else{
                c.Println(boldRed("project <id> - Please enter an id"))
                allProjects()
            }
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "edittask",
        Help: "<id> Edit a Task of the following id",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            arg := "none"
            if len(c.Args) > 0 {
                arg = strings.Join(c.Args, " ")
                argi,err := strconv.Atoi(arg)
                if err == nil{
                    //c.Println(boldGreen("Editing Task",argi))
                    editTask(argi)
                    //stdOut()
                }else{
                    c.Println(boldRed(arg,"is not a valid id!"))
                }
            }else{
                c.Println(boldRed("edittask <id> - Please enter an id"))
            }
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "editproject",
        Help: "<id> Edit the Project of the following id",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            arg := "none"
            if len(c.Args) > 0 {
                arg = strings.Join(c.Args, " ")
                argi,err := strconv.Atoi(arg)
                if err == nil{
                    editProject(argi)
                    allProjects()
                    //stdOut()
                }else{
                    c.Println(boldRed(arg,"is not a valid id!"))
                }
            }else{
                c.Println(boldRed("editproject <id> - Please enter an id"))
                allProjects()
            }
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "editcustomer",
        Help: "<id> Edit the Customer of the following id",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            arg := "none"
            if len(c.Args) > 0 {
                arg = strings.Join(c.Args, " ")
                argi,err := strconv.Atoi(arg)
                if err == nil{
                    //c.Println(boldGreen("Edit Project",argi))
                    editCustomer(argi)
                    allCustomers()
                    //stdOut()
                }else{
                    c.Println(boldRed(arg,"is not a valid id!"))
                }
            }else{
                c.Println(boldRed("editcustomer <id> - Please enter an id"))
                allCustomers()
            }
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "start",
        Help: "<DateTime> - Start Task at a specific Time 'YYYY-MM-DD HH:MM' Or 'HH:MM'",
        Func: func(c *ishell.Context) {
            arg := "none"
            if len(c.Args) > 0 {
                arg = strings.Join(c.Args, " ")
                //c.Println(boldGreen("Start Project at",arg))
                newTaskTime(currproject.id,arg)
                //    editProject(argi)
                stdOut()
            }else{
                c.Println(boldRed("start <DateTime> - Please enter a Datetime"))
            }
            c.Println(promptcol("______________________"))
        },
    })

    shell.AddCmd(&ishell.Cmd{
        Name: "stop",
        Help: "<DateTime> - Stop Open Task at a specific Time 'YYYY-MM-DD HH:MM' Or 'HH:MM'",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            arg := "none"
            if len(c.Args) > 0 {
                arg = strings.Join(c.Args, " ")
                //c.Println(boldGreen("Stop Task at",arg))
                closeTaskTime(arg)
                stdOut()
            }else{
                c.Println(boldRed("stop <DateTime> - Please enter a Datetime"))
            }
            c.Println(promptcol("______________________"))
        },
    })

   shell.AddCmd(&ishell.Cmd{
        Name: "all",
        Help: "Show all Projects",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            //c.Println(boldGreen("Start New Project"))
            //c.ClearScreen()
            //c.Println(boldBlue(">> All Projects\n"))
            allProjects()
            stdOut()
            c.Println(promptcol("______________________"))
        },
    })

   shell.AddCmd(&ishell.Cmd{
        Name: "allbills",
        Help: "Show all Bills",
        Func: func(c *ishell.Context) {
            //c.Print("\033[H\033[2J")
            //c.Println(boldGreen("Start New Project"))
            //c.Println(boldBlue(">> All Bills\n"))
            showLastBills(0)
            c.Println(promptcol("______________________"))
        },
    })

   shell.AddCmd(&ishell.Cmd{
        Name: "showbills",
        Help: "<n> - Show the last n bills",
        Func: func(c *ishell.Context) {
            //c.ClearScreen()
            arg := "none"
            if len(c.Args) > 0 {
                arg = strings.Join(c.Args, " ")
                argi,err := strconv.Atoi(arg)
                if err == nil{
                    showLastBills(argi)
                }else{
                    c.Println(boldRed(arg,"is not a valid integer!"))
                }
            }else{
                c.Println(boldRed("showbills <n> - Please enter an integer"))
            }
            //c.Print("\033[H\033[2J")
            //c.Println(boldGreen("Start New Project"))
            //stdOut()
            c.Println(promptcol("______________________"))
        },
    })
/*
    shell.AddCmd(&ishell.Cmd{
        Name: "color",
        Help: "color print",
        Func: func(c *ishell.Context) {
            c.Print(cyan("cyan\n"))
            c.Print(green("greencyan\n"))
            c.Println(yellow("yellow"))
            c.Printf("%s\n", boldRed("bold red"))
        },
    })

    // multiple choice
    shell.AddCmd(&ishell.Cmd{
         Name: "choice",
         Help: "multiple choice prompt",
         Func: func(c *ishell.Context) {
             choice := c.MultiChoice([]string{
                 "Golangers",
                 "Go programmers",
                 "Gophers",
                 "Goers",
             }, "What are Go programmers called ?")
             if choice == 2 {
                 c.Println("You got it!")
             } else {
                 c.Println("Sorry, you're wrong.")
             }
         },
    })

// multiple choice
    shell.AddCmd(&ishell.Cmd{
        Name: "checklist",
        Help: "checklist prompt",
        Func: func(c *ishell.Context) {
            languages := []string{"Python", "Go", "Haskell", "Rust"}
            choices := c.Checklist(languages,
                "What are your favourite programming languages ?",
                nil)
            out := func() (c []string) {
                for _, v := range choices {
                    c = append(c, languages[v])
                }
                return
             }
             c.Println("Your choices are", strings.Join(out(), ", "))
         },
    })
*/

    // Prompt Color
    shell.AddCmd(&ishell.Cmd{
         Name: "colorprompt",
         Help: "Select the Color of the prompt",
         Func: func(c *ishell.Context) {
             choice := c.MultiChoice([]string{
                 boldMag("Magenta"),
                 boldBlue("Blue"),
                 boldCyan("Cyan"),
                 boldGreen("Green"),
                 boldYell("Yellow"),
                 boldRed("Red"),
             }, "What Color should the Prompt be?")
             switch choice {
             case 0:
                c.SetPrompt(boldMag(">>>"))
                promptcol=boldMag
             case 1:
                c.SetPrompt(boldBlue(">>>"))
                promptcol=boldBlue
             case 2:
                c.SetPrompt(boldCyan(">>>"))
                promptcol=boldCyan
             case 3:
                c.SetPrompt(boldGreen(">>>"))
                promptcol=boldGreen
             case 4:
                c.SetPrompt(boldYell(">>>"))
                promptcol=boldYell
             case 5:
                c.SetPrompt(boldRed(">>>"))
                promptcol=boldRed
            }
            c.Println(promptcol("As You Wish!"))

            c.Println(promptcol("______________________"))
         },
    })
// Gather Tasks For Bills
    shell.AddCmd(&ishell.Cmd{
        Name: "bill",
        Help: "Select Tasks to be billed",
        Func: func(c *ishell.Context) {
            nix := []int{0}
            ids,str := getTaskList(nix,true)
            choices := c.Checklist(str,
                "What Tasks do you want to bill ?",
                nil)
            out := func() (c []int) {
                for _, v := range choices {
                    c = append(c, ids[v])
                }
                return
             }

            selids := out()
            //bids,str2 := getTaskList(selids,false)
            //c.Println(bids,str2)
            c.Println(len(selids),"Tasks Selected")
            if len(selids) == 0 {
                return
            }
            multicust, multiproj,projids := checkCustomerProjects(selids)
            // CHECK IF ONLY ONE CUSTOMER
            billprojid := 0

            if multicust {
                c.Println(boldRed("Cannot Write One Bill to multiple Customers! Please Select different Tasks"))
 
            }else{
                // CHECK IF ONLY ONE PROJECT ELSE CHOOSE ONE
                if multiproj {
                    prid,prstr :=getProjectList(projids)
                    sel := c.MultiChoice(prstr, "What Project Should be Billed ?")
                    billprojid = prid[sel]
                }else{
                    billprojid = projids[0]
                }

                seltasks := getSelectedTasks(selids)
                count,hours,dur := analyzeTasks(seltasks)

                //c.Printf("%v Tasks Selected. Totaling %.2f (h) - Dates: %s\n",count,hours,dur)
                proj,cust := getProject(billprojid)
                if cust.id == 0 {
                    c.Println(boldRed("Customer ",cust.company," with id ",cust.id," Cannot be billed. Please move ",proj.name," to a valid Customer"))
                    return
                }

                billid,billident := newBill(billprojid)
                //prs,cus := getProjectName(billprojid)
                //c.Println("For",cust.company,"-",cust.name)
                //c.Println("Project:",proj.name,"- ID:",proj.id)
                //c.Println("Projected Income:",hours*cust.satz,"€")

                //c.Println("Create New Bill:",billid)
                //c.ReadLine() //Make NEW BILL WITH ID and INV No
                c.ShowPrompt(false)

                fullbillinfo := fmt.Sprintf("For: %s - %s - %.2f(€/h) - Invoice: %s Id:%v\nProject: %s - Id:%v\n%v Tasks Selected. Totaling %.2f (h) - Dates: %s\nProjected Income: %.2f(€)\n",cust.company,cust.name,cust.satz,billident,billid,proj.name,proj.id,count,hours,dur,hours*cust.satz)
                sep := "-------------------------\n"
                restinfo := "Here some Info about the rest"
                restids := selids
                var allitems []billitem

                //allaccounted := false
                //resttasks := seltasks
                //SELECT SUBSET AND NAME BILLITEM
                //c.clear()//Println(some,"Str2:",str2)
                for {
                    if len(restids) == 0 {
                        break
                    }
                    resttasks := getSelectedTasks(restids)
                    rcount,rhours,_ := analyzeTasks(resttasks)

                    rids,rstr := getTaskList(restids,false)
                    qu := "Select Tasks to Group as Billitem"
                    restinfo = fmt.Sprintf("%v Tasks Left, Total %.2f(h)\n%s",rcount,rhours,qu)
                    pre := fmt.Sprintf("%s%s%s",fullbillinfo,sep,restinfo)

                    choices2 := c.Checklist(rstr,pre,nil)
                    out = func() (c []int) {
                        for _, v := range choices2 {
                            c = append(c, rids[v])
                        }
                        return
                    }
                    taskids := out()
                    restids = removeItems(restids,taskids)

                    if len(taskids)>0 {
                        ittasks := getSelectedTasks(taskids)
                        itcount,ithours,itdur := analyzeTasks(ittasks)
                        c.Printf("\n%v Tasks Selected, Total %.2f(h), Date: %s\n",itcount,ithours,itdur)
                        c.ShowPrompt(false)
                        c.Print("Name your Task for the Bill: ")
                        tsk := c.ReadLine()
                        var hrf float64
                        for {
                            c.Print("How Many Hours: ")
                            hr := c.ReadLine()
                            hrf,err = strconv.ParseFloat(hr,64)
                            if err != nil {
                                c.Println(hr,boldRed("can not be Parsed as a Float."),"Try a shape of X.X")
                            }else{break}
                        }
                        c.Printf("%T %v - %T %v\n",tsk,tsk,hrf,hrf)
                        allitems = append(allitems,billitem{tsk,itdur,hrf,Round(hrf*cust.satz,5)})
                        c.Print("<<Continue>>")
                        c.ReadLine()
                        //c.ShowPrompt(true)
                    }
                }
                c.Println(green("Bill Completed"))
                fullbill := bill{billid,billident,dur,proj.id,proj.name,time.Time{},time.Time{},allitems}
                saveBill(fullbill)
                checkTasks(selids,billid)
                c.ProgressBar().Indeterminate(true)
                c.ProgressBar().Start()
                testid := []int{billid}
                testbill := loadBills(testid)
                //c.Println(testbill[0].projectname,testbill[0].items)
                files := billTemplate(testbill[0],cust)
                c.Println(files)
                err = runLatex(files.Main,testbill[0].identity)
                c.ProgressBar().Stop()
                if err== nil {
                    c.Println("Finished without Errors")
                }else{
                    c.Println("Finished with error:",err)
                }
                c.Print("<<Continue>>")
                c.ReadLine()
                stdOut()
            }
            c.Println(promptcol("______________________"))
            c.ShowPrompt(true)
        },
    })

    //shell.Run()
    // teardown
    //shell.Close()
// when started with "exit" as first argument, assume non-interact    ive execution

    if len(os.Args) > 1  {
         args := removeStringFromArray(os.Args[1:],"-file",1)
         //fmt.Println(args)
         shell.Process(args...)
    } else {
         //start shell
        shell.Run()
         // teardown
        shell.Close()
    }
}