package tui

import (
	"fmt"
	"strings"

	"charm.land/lipgloss/v2"
	"superwork-tui/internal/cc"
)

// createModalWidth returns the outer width of the new-issue modal for a given
// terminal width.
func createModalWidth(termWidth int) int {
	width := 84
	if termWidth > 0 && termWidth-8 < width {
		width = termWidth - 8
	}
	if width < 40 {
		width = 40
	}
	return width
}

// defaultProfileIdx picks the initially-selected profile, preferring the VSCode
// default name "offical", else the first profile, else -1 (默认/none).
func defaultProfileIdx(profiles []cc.ClaudeProfile) int {
	for i, p := range profiles {
		if p.Name == "offical" {
			return i
		}
	}
	if len(profiles) > 0 {
		return 0
	}
	return -1
}

func profileRadios(profiles []cc.ClaudeProfile, sel int) string {
	mark := func(on bool) string {
		if on {
			return "◉"
		}
		return "○"
	}
	parts := make([]string, 0, len(profiles)+1)
	for i, p := range profiles {
		parts = append(parts, mark(i == sel)+" "+p.Name)
	}
	parts = append(parts, mark(sel < 0)+" （默认）")
	return strings.Join(parts, "   ")
}

// createView renders the new-issue modal (title + multi-line request textarea +
// optional profile radios) centered over the board, matching the VSCode dialog.
func (m Model) createView() string {
	bg := m.boardView()

	width := createModalWidth(m.width)
	innerW := width - 2

	hint := lipgloss.NewStyle().Faint(true)
	block := func(s string) string {
		return lipgloss.NewStyle().Width(innerW).PaddingLeft(1).Render(s)
	}

	var parts []string
	parts = append(parts, block(lipgloss.NewStyle().Bold(true).Foreground(detailBorderColor).Render("新建工单")))
	parts = append(parts, block(""))
	parts = append(parts, block(m.createArea.View()))
	if len(m.createImages) > 0 {
		parts = append(parts, block(hint.Render(fmt.Sprintf("已粘贴 %d 张图片", len(m.createImages)))))
	}
	if len(m.profilePickerProfiles) > 0 {
		parts = append(parts, block(""))
		parts = append(parts, block(hint.Render("配置文件 (Tab 切换):")))
		parts = append(parts, block(profileRadios(m.profilePickerProfiles, m.createProfileIdx)))
	}
	parts = append(parts, block(""))
	parts = append(parts, block(hint.Render("Ctrl+S 确认    Ctrl+V 粘贴图片    Esc 取消")))

	box := lipgloss.NewStyle().
		Border(lipgloss.RoundedBorder()).
		BorderForeground(detailBorderColor).
		Width(width).
		Render(lipgloss.JoinVertical(lipgloss.Left, parts...))

	return placeOverlayCenter(bg, box)
}