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https://github.com/go-vikunja/vikunja.git
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9c81afb7b2
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: kolaente <13721712+kolaente@users.noreply.github.com>
84 lines
2.5 KiB
Go
84 lines
2.5 KiB
Go
// Vikunja is a to-do list application to facilitate your life.
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// Copyright 2018-present Vikunja and contributors. All rights reserved.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package initials
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import (
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"fmt"
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"html"
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"strconv"
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"strings"
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"code.vikunja.io/api/pkg/user"
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)
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// Provider represents the provider implementation of the initials provider
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type Provider struct {
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}
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// FlushCache is a no-op for the initials provider since SVG generation is lightweight
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func (p *Provider) FlushCache(_ *user.User) error { return nil }
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var avatarBgColors = []string{
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"#e0f8d9",
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"#e3f5f8",
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"#faeefb",
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"#f1efff",
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"#ffecf0",
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"#ffefe4",
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}
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var avatarTextColors = []string{
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"#005f00",
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"#00548c",
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"#822198",
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"#5d26cd",
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"#9f0850",
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"#9b2200",
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}
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// GetAvatar returns an initials avatar for a user as SVG
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func (p *Provider) GetAvatar(u *user.User, size int64) (avatar []byte, mimeType string, err error) {
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// Get the text to display
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avatarText := u.Name
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if avatarText == "" {
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avatarText = u.Username
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}
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if avatarText == "" {
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return nil, "", fmt.Errorf("user has no name or username")
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}
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// Get the first character and convert to uppercase
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firstRune := []rune(strings.ToUpper(avatarText))[0]
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initial := html.EscapeString(string(firstRune))
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// Select background and text colors based on user ID
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colorIndex := int(u.ID) % len(avatarBgColors)
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bgColor := avatarBgColors[colorIndex]
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textColor := avatarTextColors[colorIndex]
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// Convert size to string
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sizeStr := strconv.FormatInt(size, 10)
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// Generate SVG
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svg := fmt.Sprintf(`<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" width="%s" height="%s">
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<rect width="100" height="100" fill="%s"/>
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<text x="50" y="50" font-family="sans-serif" font-size="50" fill="%s" text-anchor="middle" dominant-baseline="central">%s</text>
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</svg>`, sizeStr, sizeStr, bgColor, textColor, initial)
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return []byte(svg), "image/svg+xml", nil
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}
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