package tasks

import (
	"context"

	"github.com/LazyBachelor/LazyPM/internal/app"
	"github.com/LazyBachelor/LazyPM/internal/models"
	"github.com/LazyBachelor/LazyPM/pkg/repl"
	"github.com/LazyBachelor/LazyPM/pkg/task"
	"github.com/LazyBachelor/LazyPM/pkg/tui"
	"github.com/LazyBachelor/LazyPM/pkg/web"
	"github.com/charmbracelet/huh"
)

type App = app.App
type Config = models.Config
type ValidationFeedback = models.ValidationFeedback

type Issue = models.Issue
type IssueFilter = models.IssueFilter

type Questions = models.Questions
type TaskDetails = models.TaskDetails

type Interface = task.Interface
type InterfaceType = models.InterfaceType

func NewIssueBuilder() *models.IssueBuilder {
	return models.NewIssueBuilder().
		WithStatus(models.StatusOpen).
		WithIssueType(models.TypeTask)
}

const (
	InterfaceTypeCLI  = models.InterfaceTypeCLI
	InterfaceTypeTUI  = models.InterfaceTypeTUI
	InterfaceTypeWeb  = models.InterfaceTypeWeb
	InterfaceTypeREPL = models.InterfaceTypeREPL
)

func InterfaceToType(it Interface) InterfaceType {
	switch it.(type) {
	case *repl.REPL:
		return InterfaceTypeREPL
	case *tui.Tui:
		return InterfaceTypeTUI
	case *web.Web:
		return InterfaceTypeWeb
	default:
		return InterfaceType("unknown")
	}
}

func BaseDetails(interfaceType InterfaceType) TaskDetails {

	var interfaceDesc string

	switch interfaceType {
	case InterfaceTypeREPL:
		interfaceDesc = `How to use the REPL Interface
- The REPL interface allows you to interact with the task using a command-line interface.
- You can type commands to perform actions related to the task, such as creating issues, updating statuses, etc.
- The interface will provide prompts and feedback based on your inputs.`
	case InterfaceTypeTUI:
		interfaceDesc = `How to use the TUI Interface
- The TUI (Text User Interface) provides a more interactive experience in the terminal.
- You can navigate through menus, select options, and view task details in a structured format.
- Use keyboard shortcuts to perform actions and explore different sections of the interface.`
	case InterfaceTypeWeb:
		interfaceDesc = `How to use the Web Interface
- The Web interface allows you to interact with the task through a web browser.
- You can access the interface by navigating to the provided URL.
- The interface will have buttons, forms, and other interactive elements to help you complete the task.`
	default:
		interfaceDesc = "Unknown Interface"
	}

	return TaskDetails{
		Title:                "Base Task",
		Description:          "This is a base task.",
		TimeToComplete:       "10m",
		Difficulty:           "Easy",
		InterfaceType:        interfaceType,
		InterfaceDescription: interfaceDesc,
	}
}

func BaseConfig() Config {
	return models.BaseConfig
}

func ClearIssues(app *App) error {
	return app.Issues.DeleteIssues()
}

func BaseQuestions(interfaceType InterfaceType) Questions {
	var taskRating int
	return Questions{
		huh.NewGroup(
			huh.NewConfirm().
				Key("task_completed").
				Title("Did you complete the task?"),
		),
		huh.NewGroup(
			huh.NewSelect[int]().Value(&taskRating).
				Key("task_difficulty").
				Options(
					huh.NewOption("Very easy", 1),
					huh.NewOption("Easy", 2),
					huh.NewOption("Moderate", 3),
					huh.NewOption("Hard", 4),
				).
				Title("How difficult was the task?"),
		),
	}
}

func Question(fields ...huh.Field) *huh.Group {
	return huh.NewGroup(fields...)
}

func ReplQuestion(interfaceType InterfaceType, fields ...huh.Field) *huh.Group {
	if interfaceType != InterfaceTypeREPL {
		return nil
	}
	return huh.NewGroup(fields...)
}

func WebQuestion(interfaceType InterfaceType, fields ...huh.Field) *huh.Group {
	if interfaceType != InterfaceTypeWeb {
		return nil
	}
	return huh.NewGroup(fields...)
}

func TUIQuestion(interfaceType InterfaceType, fields ...huh.Field) *huh.Group {
	if interfaceType != InterfaceTypeTUI {
		return nil
	}
	return huh.NewGroup(fields...)
}

// FetchIssues retrieves all issues from the app and returns those that are relevant for validation,
// excluding the setup issue. It also updates the setup issue with the latest data from the app.
func FetchIssues(ctx context.Context, app *App, setupIssue *Issue) ([]*Issue, error) {
	issues, err := app.Issues.SearchIssues(ctx, "", models.IssueFilter{})
	if err != nil {
		return nil, err
	}

	var relevantIssues []*Issue
	for _, issue := range issues {
		if issue.ID != setupIssue.ID {
			relevantIssues = append(relevantIssues, issue)
		} else {
			*setupIssue = *issue
		}
	}

	return relevantIssues, nil
}