// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>

package main

import (
	"net/http"
	"strings"

	"github.com/go-git/go-git/v5"
	"github.com/go-git/go-git/v5/plumbing"
	"github.com/go-git/go-git/v5/plumbing/storer"

	"go.lindenii.runxiyu.org/forge/misc"

)

// httpHandleRepoBranches provides the branches page in repos.
func (s *server) httpHandleRepoBranches(writer http.ResponseWriter, _ *http.Request, params map[string]any) {
	var repo *git.Repository
	var repoName string
	var groupPath []string
	var err error
	var notes []string
	var branches []string
	var branchesIter storer.ReferenceIter

	repo, repoName, groupPath = params["repo"].(*git.Repository), params["repo_name"].(string), params["group_path"].([]string)

	if strings.Contains(repoName, "\n") || sliceContainsNewlines(groupPath) {

	if strings.Contains(repoName, "\n") || misc.SliceContainsNewlines(groupPath) {

		notes = append(notes, "Path contains newlines; HTTP Git access impossible")
	}

	branchesIter, err = repo.Branches()
	if err == nil {
		_ = branchesIter.ForEach(func(branch *plumbing.Reference) error {
			branches = append(branches, branch.Name().Short())
			return nil
		})
	}
	params["branches"] = branches

	params["http_clone_url"] = s.genHTTPRemoteURL(groupPath, repoName)
	params["ssh_clone_url"] = s.genSSHRemoteURL(groupPath, repoName)
	params["notes"] = notes

	renderTemplate(writer, "repo_branches", params)
}

// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>

package main

import (
	"net/http"

	"strings"

	"go.lindenii.runxiyu.org/forge/git2c"
	"go.lindenii.runxiyu.org/forge/render"
)

type commitDisplay struct {
	Hash    string
	Author  string
	Email   string
	Date    string
	Message string
}

// httpHandleRepoIndex provides the front page of a repo using git2d.
func (s *server) httpHandleRepoIndex(w http.ResponseWriter, req *http.Request, params map[string]any) {
	repoName := params["repo_name"].(string)
	groupPath := params["group_path"].([]string)

	_, repoPath, _, _, _, _, _ := s.getRepoInfo(req.Context(), groupPath, repoName, "") // TODO: Don't use getRepoInfo

	var notes []string
	if strings.Contains(repoName, "\n") || sliceContainsNewlines(groupPath) {
		notes = append(notes, "Path contains newlines; HTTP Git access impossible")
	}

	client, err := git2c.NewClient(s.config.Git.Socket)
	if err != nil {
		errorPage500(w, params, err.Error())
		return
	}
	defer client.Close()

	commits, readme, err := client.Cmd1(repoPath)
	if err != nil {
		errorPage500(w, params, err.Error())
		return
	}

	params["commits"] = commits
	params["readme_filename"] = readme.Filename
	_, params["readme"] = render.Readme(readme.Content, readme.Filename)

	params["notes"] = notes

	renderTemplate(w, "repo_index", params)

	// TODO: Caching
}

package misc

import "strings"

func FirstOrPanic[T any](v T, err error) T {
	if err != nil {
		panic(err)
	}
	return v
}

// sliceContainsNewlines returns true if and only if the given slice contains
// one or more strings that contains newlines.
func SliceContainsNewlines(s []string) bool {
	for _, v := range s {
		if strings.Contains(v, "\n") {
			return true
		}
	}
	return false
}

// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>

package main

import "strings"

// sliceContainsNewlines returns true if and only if the given slice contains
// one or more strings that contains newlines.
func sliceContainsNewlines(s []string) bool {
	for _, v := range s {
		if strings.Contains(v, "\n") {
			return true
		}
	}
	return false
}