mirror of
https://github.com/grafana/grafana.git
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7376eee6ff
This commit adds support for the From and To parameters that set the time range for the graph. The default is 6 hours, which can sometimes be too large of a time range.
68 lines
1.4 KiB
Go
68 lines
1.4 KiB
Go
package screenshot
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import (
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"hash/fnv"
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"strconv"
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"time"
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"github.com/grafana/grafana/pkg/models"
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)
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var (
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DefaultFrom = "now-1h"
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DefaultTo = "now"
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DefaultHeight = 500
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DefaultWidth = 1000
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DefaultTheme = models.ThemeDark
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DefaultTimeout = 15 * time.Second
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)
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// ScreenshotOptions are the options for taking a screenshot.
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type ScreenshotOptions struct {
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DashboardUID string
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PanelID int64
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From string
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To string
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Width int
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Height int
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Theme models.Theme
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Timeout time.Duration
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}
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// SetDefaults sets default values for missing or invalid options.
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func (s ScreenshotOptions) SetDefaults() ScreenshotOptions {
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if s.From == "" {
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s.From = DefaultFrom
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}
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if s.To == "" {
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s.To = DefaultTo
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}
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if s.Width <= 0 {
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s.Width = DefaultWidth
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}
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if s.Height <= 0 {
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s.Height = DefaultHeight
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}
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switch s.Theme {
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case models.ThemeDark, models.ThemeLight:
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default:
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s.Theme = DefaultTheme
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}
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if s.Timeout <= 0 {
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s.Timeout = DefaultTimeout
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}
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return s
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}
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func (s ScreenshotOptions) Hash() []byte {
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h := fnv.New64()
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_, _ = h.Write([]byte(s.DashboardUID))
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_, _ = h.Write([]byte(strconv.FormatInt(s.PanelID, 10)))
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_, _ = h.Write([]byte(s.From))
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_, _ = h.Write([]byte(s.To))
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_, _ = h.Write([]byte(strconv.FormatInt(int64(s.Width), 10)))
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_, _ = h.Write([]byte(strconv.FormatInt(int64(s.Height), 10)))
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_, _ = h.Write([]byte(s.Theme))
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return h.Sum(nil)
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}
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