package scorecard

import "image/color"

// Scale for retina/high-DPI rendering
const Scale = 2

// Theme colors for the scorecard badge - warm earth-tone palette
var (
	// BG is the main background (warm cream)
	BG = color.RGBA{R: 247, G: 240, B: 228, A: 255}
	// BGScore is the score panel background
	BGScore = color.RGBA{R: 240, G: 232, B: 217, A: 255}
	// BGTable is the table background
	BGTable = color.RGBA{R: 240, G: 233, B: 220, A: 255}
	// BGRowAlt is the alternate row background
	BGRowAlt = color.RGBA{R: 234, G: 226, B: 212, A: 255}
	// TEXT is the main text color (dark brown)
	TEXT = color.RGBA{R: 58, G: 48, B: 38, A: 255}
	// DIM is the dimmed text color (warm gray)
	DIM = color.RGBA{R: 138, G: 122, B: 102, A: 255}
	// BORDER is the inner border color (warm tan)
	BORDER = color.RGBA{R: 192, G: 176, B: 152, A: 255}
	// ACCENT is the accent color (warm brown)
	ACCENT = color.RGBA{R: 148, G: 112, B: 82, A: 255}
	// FRAME is the outer frame color (warm tan)
	FRAME = color.RGBA{R: 172, G: 152, B: 126, A: 255}
)

// Score grade colors - gradient from sage to rose
var (
	// GradeA is for scores 90-100% (deep sage green)
	GradeA = color.RGBA{R: 68, G: 120, B: 68, A: 255}
	// GradeB is for scores 70-89% (olive green)
	GradeB = color.RGBA{R: 120, G: 140, B: 72, A: 255}
	// GradeC is for scores 50-69% (yellow-green)
	GradeC = color.RGBA{R: 145, G: 155, B: 80, A: 255}
	// GradeD is for scores 30-49% (mustard)
	GradeD = color.RGBA{R: 180, G: 150, B: 70, A: 255}
	// GradeF is for scores 0-29% (dusty rose)
	GradeF = color.RGBA{R: 170, G: 110, B: 90, A: 255}
)

// Muted score colors for strict column (pastel orange/peach shades)
var (
	// GradeAMuted is muted version of GradeA
	GradeAMuted = color.RGBA{R: 195, G: 160, B: 115, A: 255} // light sandy peach
	// GradeBMuted is muted version of GradeB
	GradeBMuted = color.RGBA{R: 200, G: 148, B: 100, A: 255} // warm apricot
	// GradeCMuted is muted version of GradeC
	GradeCMuted = color.RGBA{R: 195, G: 125, B: 95, A: 255} // soft coral
	// GradeDMuted is muted version of GradeD
	GradeDMuted = color.RGBA{R: 190, G: 130, B: 100, A: 255}
	// GradeFMuted is muted version of GradeF
	GradeFMuted = color.RGBA{R: 185, G: 120, B: 100, A: 255}
)

// Severity colors for findings
var (
	SeverityT1Color = color.RGBA{R: 100, G: 180, B: 255, A: 255}
	SeverityT2Color = color.RGBA{R: 255, G: 200, B: 100, A: 255}
	SeverityT3Color = color.RGBA{R: 255, G: 140, B: 80, A: 255}
	SeverityT4Color = color.RGBA{R: 255, G: 80, B: 80, A: 255}
)

func GetGradeColor(grade string) color.RGBA {
	switch grade {
	case "A":
		return GradeA
	case "B":
		return GradeB
	case "C":
		return GradeC
	case "D":
		return GradeD
	default:
		return GradeF
	}
}

func GetGradeColorMuted(grade string) color.RGBA {
	switch grade {
	case "A":
		return GradeAMuted
	case "B":
		return GradeBMuted
	case "C":
		return GradeCMuted
	case "D":
		return GradeDMuted
	default:
		return GradeFMuted
	}
}

func GetScoreGrade(score int) string {
	switch {
	case score >= 90:
		return "A"
	case score >= 70:
		return "B"
	case score >= 50:
		return "C"
	case score >= 30:
		return "D"
	default:
		return "F"
	}
}

func GetScoreColor(score int) color.RGBA {
	return GetGradeColor(GetScoreGrade(score))
}

func GetScoreColorMuted(score int) color.RGBA {
	return GetGradeColorMuted(GetScoreGrade(score))
}

func GetSeverityColor(severity int) color.RGBA {
	switch severity {
	case 1:
		return SeverityT1Color
	case 2:
		return SeverityT2Color
	case 3:
		return SeverityT3Color
	case 4:
		return SeverityT4Color
	default:
		return DIM
	}
}

func ScaleValue(v int) int {
	return v * Scale
}