Files
ClubLogos/backend/handlers.go
T
Tomáš Dvořák 0fc92f8464 first commit
2025-10-02 12:39:28 +02:00

469 lines
11 KiB
Go

package main
import (
"database/sql"
"fmt"
"log"
"net/http"
"os"
"path/filepath"
"strings"
"time"
"github.com/gin-gonic/gin"
"github.com/google/uuid"
)
var facrClient = NewFACRClient()
// ==================== Club Handlers ====================
func searchClubs(c *gin.Context) {
query := c.Query("q")
if query == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "query parameter 'q' is required"})
return
}
clubs, err := facrClient.SearchClubs(query)
if err != nil {
// Return demo data if FAČR API is unavailable
c.JSON(http.StatusOK, getDemoClubs(query))
return
}
c.JSON(http.StatusOK, clubs)
}
func getClub(c *gin.Context) {
id := c.Param("id")
if id == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "club ID is required"})
return
}
club, err := facrClient.GetClub(id)
if err != nil {
c.JSON(http.StatusNotFound, gin.H{"error": "club not found"})
return
}
c.JSON(http.StatusOK, club)
}
// Demo data fallback
func getDemoClubs(query string) []Club {
demoClubs := []Club{
{
ID: "11111111-2222-3333-4444-555555555555",
Name: "SK Slavia Praha",
City: "Praha",
Type: "football",
Website: "https://www.slavia.cz",
},
{
ID: "22222222-3333-4444-5555-666666666666",
Name: "AC Sparta Praha",
City: "Praha",
Type: "football",
Website: "https://www.sparta.cz",
},
{
ID: "33333333-4444-5555-6666-777777777777",
Name: "FC Viktoria Plzeň",
City: "Plzeň",
Type: "football",
Website: "https://www.fcviktoria.cz",
},
{
ID: "44444444-5555-6666-7777-888888888888",
Name: "FC Baník Ostrava",
City: "Ostrava",
Type: "football",
Website: "https://www.fcb.cz",
},
{
ID: "55555555-6666-7777-8888-999999999999",
Name: "SK Sigma Olomouc",
City: "Olomouc",
Type: "football",
Website: "https://www.sigmafotbal.cz",
},
}
var results []Club
lowerQuery := strings.ToLower(query)
for _, club := range demoClubs {
if strings.Contains(strings.ToLower(club.Name), lowerQuery) {
results = append(results, club)
}
}
return results
}
// ==================== Logo Handlers ====================
type LogoMetadata struct {
ID string `json:"id"`
ClubName string `json:"club_name"`
ClubCity string `json:"club_city,omitempty"`
ClubType string `json:"club_type,omitempty"`
ClubWebsite string `json:"club_website,omitempty"`
HasSVG bool `json:"has_svg"`
HasPNG bool `json:"has_png"`
PrimaryFormat string `json:"primary_format"`
LogoURL string `json:"logo_url"`
LogoURLSVG string `json:"logo_url_svg,omitempty"`
LogoURLPNG string `json:"logo_url_png,omitempty"`
FileSizeSVG int64 `json:"file_size_svg,omitempty"`
FileSizePNG int64 `json:"file_size_png,omitempty"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
}
// getLogo returns the logo file (PNG preferred, SVG fallback)
func getLogo(c *gin.Context) {
id := c.Param("id")
if id == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "logo ID is required"})
return
}
// Validate UUID format
if _, err := uuid.Parse(id); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": "invalid UUID format"})
return
}
// Check format preference from query
format := c.Query("format") // can be "svg" or "png"
var logoPath string
var contentType string
var found bool
// Try PNG first (primary format)
if format == "" || format == "png" {
pngPath := filepath.Join("./logos/png", id+".png")
if _, err := os.Stat(pngPath); err == nil {
logoPath = pngPath
contentType = "image/png"
found = true
}
}
// Try SVG if PNG not found or explicitly requested
if !found && (format == "" || format == "svg") {
svgPath := filepath.Join("./logos/svg", id+".svg")
if _, err := os.Stat(svgPath); err == nil {
logoPath = svgPath
contentType = "image/svg+xml"
found = true
}
}
if !found {
c.JSON(http.StatusNotFound, gin.H{"error": "logo not found"})
return
}
c.Header("Content-Type", contentType)
c.Header("Cache-Control", "public, max-age=31536000")
c.File(logoPath)
}
func getLogoWithMetadata(c *gin.Context) {
id := c.Param("id")
if id == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "logo ID is required"})
return
}
// Validate UUID format
if _, err := uuid.Parse(id); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": "invalid UUID format"})
return
}
// Get metadata from database
var metadata LogoMetadata
var hasSVG, hasPNG int
err := db.QueryRow(`
SELECT id, club_name, club_city, club_type, club_website,
has_svg, has_png, primary_format,
file_size_svg, file_size_png,
created_at, updated_at
FROM logos WHERE id = ?
`, id).Scan(
&metadata.ID,
&metadata.ClubName,
&metadata.ClubCity,
&metadata.ClubType,
&metadata.ClubWebsite,
&hasSVG,
&hasPNG,
&metadata.PrimaryFormat,
&metadata.FileSizeSVG,
&metadata.FileSizePNG,
&metadata.CreatedAt,
&metadata.UpdatedAt,
)
if err == sql.ErrNoRows {
c.JSON(http.StatusNotFound, gin.H{"error": "logo not found"})
return
}
if err != nil {
log.Printf("Database error: %v", err)
c.JSON(http.StatusInternalServerError, gin.H{"error": "database error"})
return
}
metadata.HasSVG = hasSVG == 1
metadata.HasPNG = hasPNG == 1
// Construct logo URLs
scheme := "http"
if c.Request.TLS != nil {
scheme = "https"
}
baseURL := fmt.Sprintf("%s://%s", scheme, c.Request.Host)
// Primary URL (PNG preferred)
if metadata.HasPNG {
metadata.LogoURL = fmt.Sprintf("%s/logos/%s?format=png", baseURL, id)
} else if metadata.HasSVG {
metadata.LogoURL = fmt.Sprintf("%s/logos/%s?format=svg", baseURL, id)
}
// Format-specific URLs
if metadata.HasSVG {
metadata.LogoURLSVG = fmt.Sprintf("%s/logos/%s?format=svg", baseURL, id)
}
if metadata.HasPNG {
metadata.LogoURLPNG = fmt.Sprintf("%s/logos/%s?format=png", baseURL, id)
}
c.JSON(http.StatusOK, metadata)
}
// List all logos
func listLogos(c *gin.Context) {
rows, err := db.Query(`
SELECT id, club_name, club_city, club_type, club_website,
has_svg, has_png, primary_format,
created_at, updated_at
FROM logos
ORDER BY club_name
`)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "database error"})
return
}
defer rows.Close()
var logos []LogoMetadata
scheme := "http"
if c.Request.TLS != nil {
scheme = "https"
}
baseURL := fmt.Sprintf("%s://%s", scheme, c.Request.Host)
for rows.Next() {
var logo LogoMetadata
var hasSVG, hasPNG int
err := rows.Scan(
&logo.ID,
&logo.ClubName,
&logo.ClubCity,
&logo.ClubType,
&logo.ClubWebsite,
&hasSVG,
&hasPNG,
&logo.PrimaryFormat,
&logo.CreatedAt,
&logo.UpdatedAt,
)
if err != nil {
continue
}
logo.HasSVG = hasSVG == 1
logo.HasPNG = hasPNG == 1
if logo.HasPNG {
logo.LogoURL = fmt.Sprintf("%s/logos/%s?format=png", baseURL, logo.ID)
} else if logo.HasSVG {
logo.LogoURL = fmt.Sprintf("%s/logos/%s?format=svg", baseURL, logo.ID)
}
logos = append(logos, logo)
}
c.JSON(http.StatusOK, logos)
}
func uploadLogo(c *gin.Context) {
id := c.Param("id")
if id == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "logo ID is required"})
return
}
// Validate UUID format
if _, err := uuid.Parse(id); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": "invalid UUID format"})
return
}
// Get club name from form (required)
clubName := c.PostForm("club_name")
if clubName == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "club_name is required"})
return
}
// Optional fields
clubCity := c.PostForm("club_city")
clubType := c.PostForm("club_type")
clubWebsite := c.PostForm("club_website")
// Get uploaded file
file, err := c.FormFile("file")
if err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": "no file provided"})
return
}
// Validate file type
ext := strings.ToLower(filepath.Ext(file.Filename))
if ext != ".svg" && ext != ".png" && ext != ".pdf" {
c.JSON(http.StatusBadRequest, gin.H{"error": "only .svg, .png and .pdf files are allowed"})
return
}
// Determine storage paths
var svgPath, pngPath string
var hasSVG, hasPNG int
var sizeSVG, sizePNG int64
if ext == ".svg" || ext == ".pdf" {
pngPath = filepath.Join("./logos/png", id+".png")
if ext == ".svg" {
svgPath = filepath.Join("./logos/svg", id+".svg")
// Save SVG
if err := c.SaveUploadedFile(file, svgPath); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to save SVG file"})
return
}
// Get SVG file size
if stat, err := os.Stat(svgPath); err == nil {
sizeSVG = stat.Size()
}
hasSVG = 1
// Convert SVG to PNG
log.Printf("Converting SVG to PNG for club: %s", clubName)
if err := ConvertSVGToPNG(svgPath, pngPath, 512); err != nil {
log.Printf("Warning: Failed to convert SVG to PNG: %v", err)
// Don't fail the upload, just log the warning
} else {
// Optimize PNG
if err := OptimizePNG(pngPath); err != nil {
log.Printf("Warning: Failed to optimize PNG: %v", err)
}
// Get PNG file size
if stat, err := os.Stat(pngPath); err == nil {
sizePNG = stat.Size()
hasPNG = 1
}
}
} else {
// PDF file - convert directly to PNG
pdfTempPath := filepath.Join("./logos/temp", id+".pdf")
os.MkdirAll("./logos/temp", 0755)
if err := c.SaveUploadedFile(file, pdfTempPath); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to save PDF file"})
return
}
log.Printf("Converting PDF to PNG for club: %s", clubName)
if err := ConvertPDFToPNG(pdfTempPath, pngPath, 512); err != nil {
log.Printf("Error: Failed to convert PDF to PNG: %v", err)
os.Remove(pdfTempPath)
c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to convert PDF to PNG"})
return
}
// Clean up temp PDF
os.Remove(pdfTempPath)
// Optimize PNG
if err := OptimizePNG(pngPath); err != nil {
log.Printf("Warning: Failed to optimize PNG: %v", err)
}
// Get PNG file size
if stat, err := os.Stat(pngPath); err == nil {
sizePNG = stat.Size()
hasPNG = 1
}
}
} else {
// PNG upload
pngPath = filepath.Join("./logos/png", id+".png")
if err := c.SaveUploadedFile(file, pngPath); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to save PNG file"})
return
}
// Optimize PNG
if err := OptimizePNG(pngPath); err != nil {
log.Printf("Warning: Failed to optimize PNG: %v", err)
}
// Get PNG file size
if stat, err := os.Stat(pngPath); err == nil {
sizePNG = stat.Size()
}
hasPNG = 1
}
// Save metadata to database
_, err = db.Exec(`
INSERT OR REPLACE INTO logos (
id, club_name, club_city, club_type, club_website,
has_svg, has_png, primary_format,
file_size_svg, file_size_png, updated_at
) VALUES (?, ?, ?, ?, ?, ?, ?, 'png', ?, ?, CURRENT_TIMESTAMP)
`, id, clubName, clubCity, clubType, clubWebsite, hasSVG, hasPNG, sizeSVG, sizePNG)
if err != nil {
log.Printf("Database error: %v", err)
c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to save metadata"})
return
}
response := gin.H{
"success": true,
"id": id,
"club_name": clubName,
"has_svg": hasSVG == 1,
"has_png": hasPNG == 1,
"size_svg": sizeSVG,
"size_png": sizePNG,
"message": "logo uploaded successfully",
}
c.JSON(http.StatusOK, response)
}