package widget

import (
	"context"
	"fmt"
	"io"

	"github.com/Khan/genqlient/graphql"
	"github.com/charmbracelet/bubbles/list"
	tea "github.com/charmbracelet/bubbletea"

	"git.ohea.xyz/cursorius/tui/queries"
)

type pipelineListItem struct {
	name string
	id   string
}

type pipelineCreateListItem string

func (i pipelineListItem) FilterValue() string       { return "" }
func (i pipelineCreateListItem) FilterValue() string { return "" }

type pipelineListItemDelegate struct{}

func (d pipelineListItemDelegate) Height() int                               { return 1 }
func (d pipelineListItemDelegate) Spacing() int                              { return 0 }
func (d pipelineListItemDelegate) Update(msg tea.Msg, m *list.Model) tea.Cmd { return nil }
func (d pipelineListItemDelegate) Render(w io.Writer, m list.Model, index int, listItem list.Item) {
	switch i := listItem.(type) {
	case pipelineListItem:
		fn := itemStyle.Render
		faintFn := faintItemStyle.Render
		if index == m.Index() {
			fn = func(s string) string {
				return selectedItemStyle.Render("> " + s)
			}
			faintFn = faintSelectedItemStyle.Render
		}

		str := fn(i.name) + faintFn(" ("+i.id+")")
		fmt.Fprint(w, str)
	case pipelineCreateListItem:
		fn := itemStyle.Render
		if index == m.Index() {
			fn = func(s string) string {
				return selectedItemStyle.Render("> " + s)
			}
		}

		str := string(i)
		fmt.Fprint(w, fn(str))
	}
}

func CreatePipelineWidget(client graphql.Client) (list.Model, error) {
	content := []list.Item{}

	getPipelineResp, err := queries.GetPipelines(context.Background(), client)
	if err != nil {
		return list.Model{}, fmt.Errorf("Could not connect to server: %w", err)
	}

	if getPipelineResp.Pipelines != nil {
		for _, pipeline := range getPipelineResp.Pipelines {
			content = append(content, pipelineListItem{
				name: pipeline.Name,
				id:   pipeline.Id,
			})
		}
	}

	content = append(content, pipelineCreateListItem("> Create Pipeline <"))

	model := list.New(content, pipelineListItemDelegate{}, 50, 50)
	model.SetShowStatusBar(false)
	model.Title = "Pipelines"

	return model, nil
}