From 49bd3e0e0117768138f47f0c97accece15605025 Mon Sep 17 00:00:00 2001
From: Mathias Magnusson <mathias@magnusson.space>
Date: Thu, 10 Apr 2025 21:33:41 +0200
Subject: extract value extracting and convertion to functions; support uuid

---
 cmd/generate/templates.go.tmpl | 92 ++++++++++++++++--------------------------
 1 file changed, 34 insertions(+), 58 deletions(-)

(limited to 'cmd/generate/templates.go.tmpl')

diff --git a/cmd/generate/templates.go.tmpl b/cmd/generate/templates.go.tmpl
index 0e684e3..d33e069 100644
--- a/cmd/generate/templates.go.tmpl
+++ b/cmd/generate/templates.go.tmpl
@@ -1,19 +1,21 @@
 // WARNING: this file has been automatically generated by
-// codeberg.org/fooelevator/hh. DO NOT EDIT MANUALLY!
+// codeberg.org/foodelevator/hh. DO NOT EDIT MANUALLY!
 
 package {{ .PackageName }}
 
 import (
-    "net/http"
+    {{ range $_, $i := .Imports -}}
+        "{{ $i }}"
+    {{ end }}
 )
 
-func hhMountRoutes[S any](s S, mux *http.ServeMux) {
+func hhMountRoutes(mux *http.ServeMux) {
     if mux == nil {
         mux = http.DefaultServeMux
     }
-    wrapper := func(handler func(s S, w http.ResponseWriter, r *http.Request)) http.Handler {
+    wrapper := func(handler func(w http.ResponseWriter, r *http.Request)) http.Handler {
         return http.HandlerFunc(func (w http.ResponseWriter, r *http.Request) {
-            handler(s, w, r)
+            handler(w, r)
         })
     }
 
@@ -23,73 +25,47 @@ func hhMountRoutes[S any](s S, mux *http.ServeMux) {
 }
 
 {{ range $_, $fn := .Functions }}
-func hh_{{ $fn.Name }}[S any](s S, w http.ResponseWriter, r *http.Request) {
+func hh_{{ $fn.Name }}(w http.ResponseWriter, r *http.Request) {
+    defer func() {
+        err := recover()
+        if err == nil {
+            return
+        }
+        w.WriteHeader(http.StatusInternalServerError)
+        id := uuid.New()
+        w.Write([]byte("Internal server error. id = " + id.String()))
+        slog.Error("Panic in handler", "handler", {{ quote $fn.Name }}, "id", id, "error", err)
+    }()
     {{- if $fn.DoParseForm }}
         if err := r.ParseForm(); err != nil {
             panic("todo: Bad request")
         }
     {{ end }}
+    var parsed {{ $fn.RequestTypeDef }}
     {{- range $_, $f := $fn.RequestTypeFields }}
         {{ if eq $f.TypeDef "*http.Request" }}
             {{ continue }}
         {{ end }}
-        var {{ $f.Name }}0 string
-        {{- if $f.Optional }}
-            {{ $f.Name }}Skipped := false
-        {{- end }}
-        {{- if eq $f.Extractor "form" }}
-            {{ $f.Name }}1 := r.Form[{{ $f.NameInReq | quote }}]
-            if len({{ $f.Name }}1) != 0 {
-                {{ $f.Name }}0 = {{ $f.Name }}1[0]
-            } else {
-                {{- if not $f.Optional }}
-                    panic("todo: Bad request: form value " + {{ $f.NameInReq | quote }} + " missing")
-                {{- else }}
-                    {{ $f.Name }}Skipped = true
-                {{- end }}
-            }
-        {{ else if eq $f.Extractor "path" }}
-            {{ $f.Name }}1 := r.PathValue({{ $f.NameInReq | quote }})
-            if {{ $f.Name }}1 != "" {
-                {{ $f.Name }}0 = {{ $f.Name }}1
-            } else {
-                {{- if not $f.Optional }}
-                    panic("todo: Bad request: path value " + {{ $f.NameInReq | quote }} + " missing")
-                {{- else }}
-                    {{ $f.Name }}Skipped = true
-                {{- end }}
-            }
-        {{ else if eq $f.Extractor "cookie" }}
-            {{ $f.Name }}1, _ := r.Cookie({{ $f.NameInReq | quote }})
-            if {{ $f.Name }}1 != nil {
-                {{ $f.Name }}0 = {{ $f.Name }}1.Value
-            } else {
-                {{- if not $f.Optional }}
-                    panic("todo: Bad request: cookie " + {{ $f.NameInReq | quote }} + " missing")
-                {{- else }}
-                    {{ $f.Name }}Skipped = true
-                {{- end }}
+        {{ $f.Name }}, {{ $f.Name }}Skipped := {{ extractorName $f.Extractor }}(r, {{ $f.NameInReq | quote }})
+        {{ if not $f.Optional }}
+            if {{ $f.Name }}Skipped {
+                panic("todo: Bad request: " + {{ $f.Extractor | quote }} + " value " + {{ $f.NameInReq | quote }} + " missing")
             }
-        {{ else }}
-            {{ error "unknown extractor" }}
-        {{ end -}}
-        {{ if eq $f.TypeDef "string" -}}
-            {{ $f.Name }} := {{ $f.Name }}0
-        {{ else if eq $f.TypeDef "int" -}}
-            var {{ $f.Name }} int
-            {{ if $f.Optional }} if !{{ $f.Name }}Skipped { {{ end -}}
-                var err error
-                {{ $f.Name }}, err = strconv.Atoi({{ $f.Name }}0)
-                if err != nil {
-                    panic("todo: Bad request: " + {{ $f.NameInReq | quote }} + " must be a valid int")
-                }
-            {{ if $f.Optional }} } {{ end }}
         {{ end }}
+
+        {{ if $f.Optional }} if !{{ $f.Name }}Skipped {{ end -}} {
+            var err error
+            parsed.{{ $f.Name }}, err = {{ converterName $f.TypeDef }}({{ $f.Name }})
+            if err != nil {
+                panic("todo: Bad request: " + {{ $f.NameInReq | quote }} + " must be a valid " + {{ $f.TypeDef | quote }})
+            }
+        }
     {{ end }}
-    {{ $fn.Name }}(w, {{ $fn.RequestTypeDef }}{
+    {{ $fn.Name }}(w, parsed)
+    {{ if false }}
         {{ range $_, $f := $fn.RequestTypeFields -}}
             {{ $f.Name }}: {{ $f.Name }},
         {{ end }}
-    })
+    {{ end }}
 }
 {{ end }}
-- 
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