package web

import (
	"net/http"
	"path/filepath"

	handlers "go.lindenii.runxiyu.org/forge/forged/internal/incoming/web/handlers"
	repoHandlers "go.lindenii.runxiyu.org/forge/forged/internal/incoming/web/handlers/repo"
)

type handler struct {
	r *Router
}

func NewHandler(cfg Config) http.Handler {
	h := &handler{r: NewRouter().ReverseProxy(cfg.ReverseProxy)}

	// Static files
	staticDir := filepath.Join(cfg.Root, "static")
	staticFS := http.FileServer(http.Dir(staticDir))
	h.r.ANYHTTP("-/static/*rest",
		http.StripPrefix("/-/static/", staticFS),
		WithDirIfEmpty("rest"),
	)

	// Feature handler instances
	indexHTTP := handlers.NewIndexHTTP()

	groupHTTP := handlers.NewGroupHTTP()

	repoHTTP := repoHandlers.NewHTTP()

	notImpl := handlers.NewNotImplementedHTTP()

	// Index
	h.r.GET("/", indexHTTP.Index)

	// Top-level utilities

	h.r.ANY("-/login", h.notImplemented)
	h.r.ANY("-/users", h.notImplemented)

	h.r.ANY("-/login", notImpl.Handle)
	h.r.ANY("-/users", notImpl.Handle)

	// Group index (kept local for now; migrate later)
	h.r.GET("@group/", h.groupIndex)

	// Group index
	h.r.GET("@group/", groupHTTP.Index)

	// Repo index (handled by repoHTTP)

	// Repo index

	h.r.GET("@group/-/repos/:repo/", repoHTTP.Index)

	// Repo (kept local for now)
	h.r.ANY("@group/-/repos/:repo/info", h.notImplemented)
	h.r.ANY("@group/-/repos/:repo/git-upload-pack", h.notImplemented)

	// Repo (not implemented yet)
	h.r.ANY("@group/-/repos/:repo/info", notImpl.Handle)
	h.r.ANY("@group/-/repos/:repo/git-upload-pack", notImpl.Handle)

	// Repo features (kept local for now)
	h.r.GET("@group/-/repos/:repo/branches/", h.notImplemented)
	h.r.GET("@group/-/repos/:repo/log/", h.notImplemented)
	h.r.GET("@group/-/repos/:repo/commit/:commit", h.notImplemented)
	h.r.GET("@group/-/repos/:repo/tree/*rest", h.repoTree, WithDirIfEmpty("rest"))
	h.r.GET("@group/-/repos/:repo/raw/*rest", h.repoRaw, WithDirIfEmpty("rest"))
	h.r.GET("@group/-/repos/:repo/contrib/", h.notImplemented)
	h.r.GET("@group/-/repos/:repo/contrib/:mr", h.notImplemented)

	// Repo features
	h.r.GET("@group/-/repos/:repo/branches/", notImpl.Handle)
	h.r.GET("@group/-/repos/:repo/log/", notImpl.Handle)
	h.r.GET("@group/-/repos/:repo/commit/:commit", notImpl.Handle)
	h.r.GET("@group/-/repos/:repo/tree/*rest", repoHTTP.Tree, WithDirIfEmpty("rest"))
	h.r.GET("@group/-/repos/:repo/raw/*rest", repoHTTP.Raw, WithDirIfEmpty("rest"))
	h.r.GET("@group/-/repos/:repo/contrib/", notImpl.Handle)
	h.r.GET("@group/-/repos/:repo/contrib/:mr", notImpl.Handle)

	return h
}

func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	h.r.ServeHTTP(w, r)
}

package handlers

import (
	"net/http"
	"strings"

	wtypes "go.lindenii.runxiyu.org/forge/forged/internal/incoming/web/types"
)

type GroupHTTP struct{}

func NewGroupHTTP() *GroupHTTP { return &GroupHTTP{} }

func (h *GroupHTTP) Index(w http.ResponseWriter, r *http.Request, _ wtypes.Vars) {
	base := wtypes.Base(r)
	_, _ = w.Write([]byte("group index for: /" + strings.Join(base.GroupPath, "/") + "/"))
}

package handlers

import (
	"net/http"

	wtypes "go.lindenii.runxiyu.org/forge/forged/internal/incoming/web/types"
)

type IndexHTTP struct{}

func NewIndexHTTP() *IndexHTTP { return &IndexHTTP{} }

func (h *IndexHTTP) Index(w http.ResponseWriter, r *http.Request, _ wtypes.Vars) {

func (h *IndexHTTP) Index(w http.ResponseWriter, _ *http.Request, _ wtypes.Vars) {

	_, _ = w.Write([]byte("index: replace with template render"))
}

package handlers

import (
	"net/http"

	wtypes "go.lindenii.runxiyu.org/forge/forged/internal/incoming/web/types"
)

type NotImplementedHTTP struct{}

func NewNotImplementedHTTP() *NotImplementedHTTP { return &NotImplementedHTTP{} }

func (h *NotImplementedHTTP) Handle(w http.ResponseWriter, _ *http.Request, _ wtypes.Vars) {
	http.Error(w, "not implemented", http.StatusNotImplemented)
}

package repo

import (
	"fmt"
	"net/http"
	"strings"

	wtypes "go.lindenii.runxiyu.org/forge/forged/internal/incoming/web/types"
)

func (h *HTTP) Raw(w http.ResponseWriter, r *http.Request, v wtypes.Vars) {
	base := wtypes.Base(r)
	repo := v["repo"]
	rest := v["rest"]
	if base.DirMode && rest != "" && !strings.HasSuffix(rest, "/") {
		rest += "/"
	}
	_, _ = w.Write([]byte(fmt.Sprintf("raw: repo=%q path=%q", repo, rest)))
}

package repo

import (
	"fmt"
	"net/http"
	"strings"

	wtypes "go.lindenii.runxiyu.org/forge/forged/internal/incoming/web/types"
)

func (h *HTTP) Tree(w http.ResponseWriter, r *http.Request, v wtypes.Vars) {
	base := wtypes.Base(r)
	repo := v["repo"]
	rest := v["rest"] // may be ""
	if base.DirMode && rest != "" && !strings.HasSuffix(rest, "/") {
		rest += "/"
	}
	_, _ = w.Write([]byte(fmt.Sprintf("tree: repo=%q path=%q", repo, rest)))
}

package web

import (
	"fmt"
	"net/http"
	"strings"

	wtypes "go.lindenii.runxiyu.org/forge/forged/internal/incoming/web/types"
)

func (h *handler) groupIndex(w http.ResponseWriter, r *http.Request, _ wtypes.Vars) {
	base := wtypes.Base(r)
	_, _ = w.Write([]byte("group index for: /" + strings.Join(base.GroupPath, "/") + "/"))
}

func (h *handler) repoTree(w http.ResponseWriter, r *http.Request, v wtypes.Vars) {
	base := wtypes.Base(r)
	repo := v["repo"]
	rest := v["rest"] // may be ""
	if base.DirMode && rest != "" && !strings.HasSuffix(rest, "/") {
		rest += "/"
	}
	_, _ = w.Write([]byte(fmt.Sprintf("tree: repo=%q path=%q", repo, rest)))
}

func (h *handler) repoRaw(w http.ResponseWriter, r *http.Request, v wtypes.Vars) {
	base := wtypes.Base(r)
	repo := v["repo"]
	rest := v["rest"]
	if base.DirMode && rest != "" && !strings.HasSuffix(rest, "/") {
		rest += "/"
	}
	_, _ = w.Write([]byte(fmt.Sprintf("raw: repo=%q path=%q", repo, rest)))
}

func (h *handler) notImplemented(w http.ResponseWriter, _ *http.Request, _ wtypes.Vars) {
	http.Error(w, "not implemented", http.StatusNotImplemented)
}