package game

import (
	"strings"

	"thehouseoficarus/internal/casino"
	"thehouseoficarus/internal/color"
)

func renderSlotSnapshot(snapshot *casino.SlotSnapshot, mode string, unicode bool) string {
	if snapshot == nil {
		return ""
	}
	left, junction, right, horizontal, vertical := '+', '+', '+', '-', '|'
	bottomLeft, bottomJunction, bottomRight := '+', '+', '+'
	if unicode {
		left, junction, right, horizontal, vertical = '\u250c', '\u252c', '\u2510', '\u2500', '\u2502'
		bottomLeft, bottomJunction, bottomRight = '\u2514', '\u2534', '\u2518'
	}
	separator := string(left)
	for reel := 0; reel < 5; reel++ {
		if reel > 0 {
			separator += string(junction)
		}
		separator += strings.Repeat(string(horizontal), 9)
	}
	separator += string(right)
	lines := []string{casinoFrame(mode, separator)}
	frameVertical := casinoFrame(mode, string(vertical))
	for row := 0; row < 3; row++ {
		line := frameVertical
		for reel := 0; reel < 5; reel++ {
			value := "..."
			if reel < snapshot.StoppedReels {
				value = snapshot.Grid[row][reel]
			}
			// Pad to the fixed 7-cell reel width; a malformed profile could
			// otherwise make this negative and panic. Validation caps the id
			// length, so this is a defence-in-depth backstop.
			pad := 7 - len(value)
			if pad < 0 {
				pad = 0
			}
			line += " " + colorSlotSymbol(mode, value) + strings.Repeat(" ", pad) + " " + frameVertical
		}
		lines = append(lines, line)
	}
	bottom := string(bottomLeft)
	for reel := 0; reel < 5; reel++ {
		if reel > 0 {
			bottom += string(bottomJunction)
		}
		bottom += strings.Repeat(string(horizontal), 9)
	}
	bottom += string(bottomRight)
	lines = append(lines, casinoFrame(mode, bottom))
	return strings.Join(lines, "\n")
}

func casinoFrame(mode, text string) string {
	spec := color.NoColor()
	spec.Fg = 244
	return color.Render(mode, spec, text)
}

func colorSlotSymbol(mode, symbol string) string {
	spec := color.NoColor()
	spec.Fg = 250
	switch symbol {
	case "straw":
		spec.Fg = 220
	case "stick":
		spec.Fg = 46
	case "brick":
		spec.Fg = 196
	case "hat":
		spec.Fg = 201
	case "wolf":
		spec.Fg = 39
	case "scatter":
		spec.Fg = 226
	default:
		spec.Dim = true
	}
	return color.Render(mode, spec, symbol)
}