feat: pull request generation

internal/http/handler/webui/pullrequest/handler.go

@@ -0,0 +1,46 @@
+package pullrequest
+
+import (
+	"net/http"
+
+	"forge.cadoles.com/wpetit/clearcase/internal/core/service"
+	httpCtx "forge.cadoles.com/wpetit/clearcase/internal/http/context"
+	"forge.cadoles.com/wpetit/clearcase/internal/http/handler/webui/common"
+	"forge.cadoles.com/wpetit/clearcase/internal/http/url"
+	"github.com/pkg/errors"
+)
+
+type Handler struct {
+	mux   *http.ServeMux
+	forge *service.ForgeManager
+}
+
+// ServeHTTP implements http.Handler.
+func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	h.mux.ServeHTTP(w, r)
+}
+
+func NewHandler(forge *service.ForgeManager) *Handler {
+	h := &Handler{
+		mux:   http.NewServeMux(),
+		forge: forge,
+	}
+
+	h.mux.HandleFunc("GET /", h.getPullRequestPage)
+	h.mux.HandleFunc("PUT /", h.handlePullRequestSummaryForm)
+	h.mux.HandleFunc("POST /", h.handlePullRequestForm)
+
+	return h
+}
+
+func (h *Handler) handleError(w http.ResponseWriter, r *http.Request, err error) {
+	if errors.Is(err, service.ErrForgeNotAvailable) {
+		baseURL := url.Mutate(httpCtx.BaseURL(r.Context()), url.WithPath("/auth/logout"))
+		http.Redirect(w, r, baseURL.String(), http.StatusSeeOther)
+		return
+	}
+
+	common.HandleError(w, r, errors.WithStack(err))
+}
+
+var _ http.Handler = &Handler{}