package tui

import (
	"strings"

	"github.com/charmbracelet/lipgloss"
)

// Palette (Tokyo Night inspired)
var (
	colorPurple = lipgloss.Color("#7C71FF")
	colorGreen  = lipgloss.Color("#9ECE6A")
	colorYellow = lipgloss.Color("#E0AF68")
	colorRed    = lipgloss.Color("#F7768E")
	colorBlue   = lipgloss.Color("#7AA2F7")
	colorCyan   = lipgloss.Color("#73DACA")
	colorGray   = lipgloss.Color("#565F89")
	colorBorder = lipgloss.Color("#414868")
	colorFg     = lipgloss.Color("#C0CAF5")
)

var (
	headerStyle = lipgloss.NewStyle().
			Background(colorPurple).
			Foreground(lipgloss.Color("#FFFFFF")).
			Bold(true).
			Padding(0, 2)

	subHeaderStyle = lipgloss.NewStyle().
			Background(lipgloss.Color("#414868")).
			Foreground(colorFg).
			Padding(0, 2)

	footerStyle = lipgloss.NewStyle().
			Foreground(colorGray)

	panelStyle = lipgloss.NewStyle().
			Border(lipgloss.RoundedBorder()).
			BorderForeground(colorBorder)

	activePanelStyle = lipgloss.NewStyle().
				Border(lipgloss.RoundedBorder()).
				BorderForeground(colorPurple)

	folderItemStyle = lipgloss.NewStyle().
			Foreground(colorPurple).
			Bold(true)

	selectedItemStyle = lipgloss.NewStyle().
				Foreground(colorPurple).
				Bold(true)

	dimItemStyle = lipgloss.NewStyle().
			Foreground(colorGray)

	statusOKStyle = lipgloss.NewStyle().
			Foreground(colorGreen).
			Bold(true)

	statusErrStyle = lipgloss.NewStyle().
			Foreground(colorRed).
			Bold(true)

	labelStyle = lipgloss.NewStyle().
			Foreground(colorGray)

	wizardBoxStyle = lipgloss.NewStyle().
			Border(lipgloss.RoundedBorder()).
			BorderForeground(colorPurple).
			Padding(1, 2)

	hintStyle = lipgloss.NewStyle().
			Foreground(colorGray).
			Italic(true)
)

// envColorFor maps an environment name to its header accent colour.
// prod/production → red (danger), staging → yellow, local/dev → green, else → purple.
func envColorFor(name string) lipgloss.Color {
	switch strings.ToLower(name) {
	case "prod", "production", "live", "master":
		return colorRed
	case "staging", "stage", "uat", "preprod":
		return colorYellow
	case "local", "dev", "development", "test":
		return colorGreen
	default:
		return colorPurple
	}
}

// methodStyle returns a style coloured by HTTP verb.
func methodStyle(method string) lipgloss.Style {
	switch method {
	case "GET":
		return lipgloss.NewStyle().Foreground(colorGreen).Bold(true)
	case "POST":
		return lipgloss.NewStyle().Foreground(colorYellow).Bold(true)
	case "PUT":
		return lipgloss.NewStyle().Foreground(colorBlue).Bold(true)
	case "DELETE":
		return lipgloss.NewStyle().Foreground(colorRed).Bold(true)
	case "PATCH":
		return lipgloss.NewStyle().Foreground(colorCyan).Bold(true)
	default:
		return lipgloss.NewStyle().Foreground(colorGray)
	}
}

// statusCodeStyle colours HTTP status codes (2xx green, 3xx blue, 4xx/5xx red).
func statusCodeStyle(code int) lipgloss.Style {
	switch {
	case code >= 200 && code < 300:
		return lipgloss.NewStyle().Foreground(colorGreen).Bold(true)
	case code >= 300 && code < 400:
		return lipgloss.NewStyle().Foreground(colorBlue).Bold(true)
	case code >= 400:
		return lipgloss.NewStyle().Foreground(colorRed).Bold(true)
	default:
		return lipgloss.NewStyle().Foreground(colorGray)
	}
}