feat: add pdf generation
This commit is contained in:
parent
bb891aea0b
commit
d4265cc046
7 changed files with 245 additions and 5 deletions
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@ -3,6 +3,7 @@ module school-timetracker
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go 1.25.3
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require (
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github.com/jung-kurt/gofpdf v1.16.2
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github.com/labstack/echo/v4 v4.13.4
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golang.org/x/crypto v0.43.0
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golang.org/x/time v0.11.0
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@ -1,3 +1,5 @@
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github.com/boombuler/barcode v1.0.0/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
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@ -6,6 +8,9 @@ github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17k
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github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
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github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
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github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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github.com/jung-kurt/gofpdf v1.0.0/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
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github.com/jung-kurt/gofpdf v1.16.2 h1:jgbatWHfRlPYiK85qgevsZTHviWXKwB1TTiKdz5PtRc=
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github.com/jung-kurt/gofpdf v1.16.2/go.mod h1:1hl7y57EsiPAkLbOwzpzqgx1A30nQCk/YmFV8S2vmK0=
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github.com/labstack/echo/v4 v4.13.4 h1:oTZZW+T3s9gAu5L8vmzihV7/lkXGZuITzTQkTEhcXEA=
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github.com/labstack/echo/v4 v4.13.4/go.mod h1:g63b33BZ5vZzcIUF8AtRH40DrTlXnx4UMC8rBdndmjQ=
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github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0=
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@ -16,10 +21,14 @@ github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWE
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github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
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github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4=
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github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
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github.com/phpdave11/gofpdi v1.0.7/go.mod h1:vBmVV0Do6hSBHC8uKUQ71JGW+ZGQq74llk/7bXwjDoI=
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github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
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github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
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github.com/ruudk/golang-pdf417 v0.0.0-20181029194003-1af4ab5afa58/go.mod h1:6lfFZQK844Gfx8o5WFuvpxWRwnSoipWe/p622j1v06w=
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github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
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github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
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github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
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github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
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@ -30,6 +39,7 @@ golang.org/x/crypto v0.43.0 h1:dduJYIi3A3KOfdGOHX8AVZ/jGiyPa3IbBozJ5kNuE04=
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golang.org/x/crypto v0.43.0/go.mod h1:BFbav4mRNlXJL4wNeejLpWxB7wMbc79PdRGhWKncxR0=
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golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b h1:M2rDM6z3Fhozi9O7NWsxAkg/yqS/lQJ6PmkyIV3YP+o=
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golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b/go.mod h1:3//PLf8L/X+8b4vuAfHzxeRUl04Adcb341+IGKfnqS8=
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golang.org/x/image v0.0.0-20190910094157-69e4b8554b2a/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/mod v0.28.0 h1:gQBtGhjxykdjY9YhZpSlZIsbnaE2+PgjfLWUQTnoZ1U=
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golang.org/x/mod v0.28.0/go.mod h1:yfB/L0NOf/kmEbXjzCPOx1iK1fRutOydrCMsqRhEBxI=
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golang.org/x/net v0.45.0 h1:RLBg5JKixCy82FtLJpeNlVM0nrSqpCRYzVU1n8kj0tM=
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@ -39,6 +49,7 @@ golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
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golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.37.0 h1:fdNQudmxPjkdUTPnLn5mdQv7Zwvbvpaxqs831goi9kQ=
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golang.org/x/sys v0.37.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
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golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
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golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
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@ -2,6 +2,7 @@ package main
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import (
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"database/sql"
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"fmt"
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"net/http"
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"strconv"
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"time"
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@ -494,3 +495,31 @@ func (app *App) GetActiveSchoolYearHandler(c echo.Context) error {
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}
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return c.JSON(http.StatusOK, year)
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}
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func (app *App) GenerateYearlySummaryPDFHandler(c echo.Context) error {
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isAdmin, _ := c.Get("is_admin").(bool)
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if !isAdmin {
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return echo.NewHTTPError(http.StatusForbidden, "Only admins can generate PDFs")
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}
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schoolYear, err := GetActiveSchoolYear(app.DB)
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if err != nil || schoolYear == nil {
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return echo.NewHTTPError(http.StatusNotFound, "No active school year found")
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}
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summary, err := GetYearlyHoursSummary(app.DB)
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if err != nil {
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return echo.NewHTTPError(http.StatusInternalServerError, err.Error())
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}
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pdfBytes, err := GenerateYearlySummaryPDF(schoolYear, summary)
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if err != nil {
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return echo.NewHTTPError(http.StatusInternalServerError, "Failed to generate PDF: "+err.Error())
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}
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filename := fmt.Sprintf("Jahresuebersicht_%s.pdf", schoolYear.Name)
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c.Response().Header().Set("Content-Type", "application/pdf")
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c.Response().Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filename))
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return c.Blob(http.StatusOK, "application/pdf", pdfBytes)
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}
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@ -68,6 +68,7 @@ func main() {
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admin.GET("/school-years", app.GetSchoolYearsHandler)
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admin.POST("/school-years", app.CreateSchoolYearHandler)
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admin.PUT("/school-years/:id/activate", app.SetActiveSchoolYearHandler)
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admin.GET("/yearly-summary/pdf", app.GenerateYearlySummaryPDFHandler)
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}
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e.Static("/", "./static")
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110
backend/pdf.go
Normal file
110
backend/pdf.go
Normal file
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@ -0,0 +1,110 @@
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package main
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import (
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"fmt"
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"time"
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"github.com/jung-kurt/gofpdf"
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)
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func GenerateYearlySummaryPDF(schoolYear *SchoolYear, summary []WeeklyHours) ([]byte, error) {
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pdf := gofpdf.New("P", "mm", "A4", "")
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pdf.AddPage()
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pdf.SetFont("Arial", "B", 20)
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title := fmt.Sprintf("Stundenjahresübersicht für Schuljahr %s", schoolYear.Name)
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pdf.Cell(0, 15, title)
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pdf.Ln(10)
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pdf.SetFont("Arial", "", 12)
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subtitle := fmt.Sprintf("%s bis %s", schoolYear.StartDate, schoolYear.EndDate)
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pdf.Cell(0, 10, subtitle)
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pdf.Ln(15)
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pdf.SetFont("Arial", "B", 10)
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pdf.SetFillColor(52, 152, 219)
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pdf.SetTextColor(255, 255, 255)
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colWidths := []float64{60, 40, 40, 40}
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headers := []string{"Mitarbeiter", "Soll (Std.)", "Ist (Std.)", "Differenz (Std.)"}
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for i, header := range headers {
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pdf.CellFormat(colWidths[i], 10, header, "1", 0, "C", true, 0, "")
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}
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pdf.Ln(-1)
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pdf.SetFont("Arial", "", 10)
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pdf.SetTextColor(0, 0, 0)
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fill := false
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for _, entry := range summary {
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if fill {
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pdf.SetFillColor(240, 240, 240)
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} else {
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pdf.SetFillColor(255, 255, 255)
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}
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pdf.CellFormat(colWidths[0], 8, entry.Username, "1", 0, "L", true, 0, "")
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pdf.CellFormat(colWidths[1], 8, fmt.Sprintf("%.1f", entry.YearlyTarget), "1", 0, "R", true, 0, "")
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pdf.CellFormat(colWidths[2], 8, fmt.Sprintf("%.1f", entry.YearlyActual), "1", 0, "R", true, 0, "")
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diffStr := fmt.Sprintf("%.1f", entry.RemainingYearly)
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if entry.RemainingYearly > 0 {
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pdf.SetTextColor(220, 53, 69)
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} else {
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pdf.SetTextColor(40, 167, 69)
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}
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pdf.CellFormat(colWidths[3], 8, diffStr, "1", 0, "R", true, 0, "")
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pdf.SetTextColor(0, 0, 0)
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pdf.Ln(-1)
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fill = !fill
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}
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pdf.Ln(5)
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pdf.SetFont("Arial", "B", 10)
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totalTarget := 0.0
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totalActual := 0.0
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totalRemaining := 0.0
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for _, entry := range summary {
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totalTarget += entry.YearlyTarget
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totalActual += entry.YearlyActual
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totalRemaining += entry.RemainingYearly
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}
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pdf.SetFillColor(52, 152, 219)
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pdf.SetTextColor(255, 255, 255)
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pdf.CellFormat(colWidths[0], 10, "GESAMT", "1", 0, "L", true, 0, "")
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pdf.CellFormat(colWidths[1], 10, fmt.Sprintf("%.1f", totalTarget), "1", 0, "R", true, 0, "")
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pdf.CellFormat(colWidths[2], 10, fmt.Sprintf("%.1f", totalActual), "1", 0, "R", true, 0, "")
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pdf.CellFormat(colWidths[3], 10, fmt.Sprintf("%.1f", totalRemaining), "1", 0, "R", true, 0, "")
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pdf.Ln(15)
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pdf.SetFont("Arial", "I", 8)
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pdf.SetTextColor(128, 128, 128)
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pdf.Cell(0, 10, fmt.Sprintf("Erstellt am: %s", time.Now().Format("02.01.2006 15:04")))
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var buf []byte
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w := &pdfWriter{buf: &buf}
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err := pdf.Output(w)
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if err != nil {
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return nil, err
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}
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return buf, nil
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}
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type pdfWriter struct {
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buf *[]byte
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}
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func (w *pdfWriter) Write(p []byte) (n int, err error) {
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*w.buf = append(*w.buf, p...)
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return len(p), nil
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}
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