mirror of
https://github.com/glanceapp/glance.git
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165 lines
3.1 KiB
Go
165 lines
3.1 KiB
Go
package widget
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import (
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"fmt"
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"html/template"
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"os"
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"regexp"
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"strconv"
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"strings"
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"time"
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"gopkg.in/yaml.v3"
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)
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var HSLColorPattern = regexp.MustCompile(`^(?:hsla?\()?(\d{1,3})(?: |,)+(\d{1,3})%?(?: |,)+(\d{1,3})%?\)?$`)
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var EnvFieldPattern = regexp.MustCompile(`^\${([A-Z_]+)}$`)
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const (
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HSLHueMax = 360
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HSLSaturationMax = 100
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HSLLightnessMax = 100
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)
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type HSLColorField struct {
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Hue uint16
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Saturation uint8
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Lightness uint8
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}
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func (c *HSLColorField) String() string {
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return fmt.Sprintf("hsl(%d, %d%%, %d%%)", c.Hue, c.Saturation, c.Lightness)
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}
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func (c *HSLColorField) AsCSSValue() template.CSS {
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return template.CSS(c.String())
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}
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func (c *HSLColorField) UnmarshalYAML(node *yaml.Node) error {
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var value string
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if err := node.Decode(&value); err != nil {
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return err
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}
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matches := HSLColorPattern.FindStringSubmatch(value)
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if len(matches) != 4 {
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return fmt.Errorf("invalid HSL color format: %s", value)
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}
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hue, err := strconv.ParseUint(matches[1], 10, 16)
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if err != nil {
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return err
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}
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if hue > HSLHueMax {
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return fmt.Errorf("HSL hue must be between 0 and %d", HSLHueMax)
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}
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saturation, err := strconv.ParseUint(matches[2], 10, 8)
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if err != nil {
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return err
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}
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if saturation > HSLSaturationMax {
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return fmt.Errorf("HSL saturation must be between 0 and %d", HSLSaturationMax)
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}
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lightness, err := strconv.ParseUint(matches[3], 10, 8)
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if err != nil {
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return err
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}
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if lightness > HSLLightnessMax {
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return fmt.Errorf("HSL lightness must be between 0 and %d", HSLLightnessMax)
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}
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c.Hue = uint16(hue)
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c.Saturation = uint8(saturation)
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c.Lightness = uint8(lightness)
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return nil
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}
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var DurationPattern = regexp.MustCompile(`^(\d+)(s|m|h|d)$`)
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type DurationField time.Duration
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func (d *DurationField) UnmarshalYAML(node *yaml.Node) error {
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var value string
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if err := node.Decode(&value); err != nil {
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return err
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}
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matches := DurationPattern.FindStringSubmatch(value)
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if len(matches) != 3 {
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return fmt.Errorf("invalid duration format: %s", value)
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}
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duration, err := strconv.Atoi(matches[1])
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if err != nil {
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return err
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}
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switch matches[2] {
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case "s":
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*d = DurationField(time.Duration(duration) * time.Second)
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case "m":
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*d = DurationField(time.Duration(duration) * time.Minute)
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case "h":
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*d = DurationField(time.Duration(duration) * time.Hour)
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case "d":
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*d = DurationField(time.Duration(duration) * 24 * time.Hour)
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}
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return nil
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}
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type OptionalEnvString string
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func (f *OptionalEnvString) UnmarshalYAML(node *yaml.Node) error {
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var value string
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err := node.Decode(&value)
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if err != nil {
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return err
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}
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matches := EnvFieldPattern.FindStringSubmatch(value)
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if len(matches) != 2 {
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*f = OptionalEnvString(value)
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return nil
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}
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value, found := os.LookupEnv(matches[1])
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if !found {
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return fmt.Errorf("environment variable %s not found", matches[1])
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}
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*f = OptionalEnvString(value)
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return nil
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}
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func toSimpleIconIfPrefixed(icon string) (string, bool) {
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if !strings.HasPrefix(icon, "si:") {
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return icon, false
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}
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icon = strings.TrimPrefix(icon, "si:")
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icon = "https://cdnjs.cloudflare.com/ajax/libs/simple-icons/11.14.0/" + icon + ".svg"
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return icon, true
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}
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