// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package integrations

import (
	"net/http"
	"net/http/httptest"
	"net/url"
	"path"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestCreateFile(t *testing.T) {
	onGiteaRun(t, func(t *testing.T, u *url.URL) {
		session := loginUser(t, "user2")

		// Request editor page
		req := NewRequest(t, "GET", "/user2/repo1/_new/master/")
		resp := session.MakeRequest(t, req, http.StatusOK)

		doc := NewHTMLParser(t, resp.Body)
		lastCommit := doc.GetInputValueByName("last_commit")
		assert.NotEmpty(t, lastCommit)

		// Save new file to master branch
		req = NewRequestWithValues(t, "POST", "/user2/repo1/_new/master/", map[string]string{
			"_csrf":         doc.GetCSRF(),
			"last_commit":   lastCommit,
			"tree_path":     "test.txt",
			"content":       "Content",
			"commit_choice": "direct",
		})
		session.MakeRequest(t, req, http.StatusFound)
	})
}

func TestCreateFileOnProtectedBranch(t *testing.T) {
	onGiteaRun(t, func(t *testing.T, u *url.URL) {
		session := loginUser(t, "user2")

		csrf := GetCSRF(t, session, "/user2/repo1/settings/branches")
		// Change master branch to protected
		req := NewRequestWithValues(t, "POST", "/user2/repo1/settings/branches/master", map[string]string{
			"_csrf":     csrf,
			"protected": "on",
		})
		session.MakeRequest(t, req, http.StatusFound)
		// Check if master branch has been locked successfully
		flashCookie := session.GetCookie("macaron_flash")
		assert.NotNil(t, flashCookie)
		assert.EqualValues(t, "success%3DBranch%2Bprotection%2Bfor%2Bbranch%2B%2527master%2527%2Bhas%2Bbeen%2Bupdated.", flashCookie.Value)

		// Request editor page
		req = NewRequest(t, "GET", "/user2/repo1/_new/master/")
		resp := session.MakeRequest(t, req, http.StatusOK)

		doc := NewHTMLParser(t, resp.Body)
		lastCommit := doc.GetInputValueByName("last_commit")
		assert.NotEmpty(t, lastCommit)

		// Save new file to master branch
		req = NewRequestWithValues(t, "POST", "/user2/repo1/_new/master/", map[string]string{
			"_csrf":         doc.GetCSRF(),
			"last_commit":   lastCommit,
			"tree_path":     "test.txt",
			"content":       "Content",
			"commit_choice": "direct",
		})

		resp = session.MakeRequest(t, req, http.StatusOK)
		// Check body for error message
		assert.Contains(t, resp.Body.String(), "Cannot commit to protected branch 'master'.")

		// remove the protected branch
		csrf = GetCSRF(t, session, "/user2/repo1/settings/branches")
		// Change master branch to protected
		req = NewRequestWithValues(t, "POST", "/user2/repo1/settings/branches/master", map[string]string{
			"_csrf":     csrf,
			"protected": "off",
		})
		resp = session.MakeRequest(t, req, http.StatusFound)
		// Check if master branch has been locked successfully
		flashCookie = session.GetCookie("macaron_flash")
		assert.NotNil(t, flashCookie)
		assert.EqualValues(t, "success%3DBranch%2Bprotection%2Bfor%2Bbranch%2B%2527master%2527%2Bhas%2Bbeen%2Bdisabled.", flashCookie.Value)
	})
}

func testEditFile(t *testing.T, session *TestSession, user, repo, branch, filePath, newContent string) *httptest.ResponseRecorder {
	// Get to the 'edit this file' page
	req := NewRequest(t, "GET", path.Join(user, repo, "_edit", branch, filePath))
	resp := session.MakeRequest(t, req, http.StatusOK)

	htmlDoc := NewHTMLParser(t, resp.Body)
	lastCommit := htmlDoc.GetInputValueByName("last_commit")
	assert.NotEmpty(t, lastCommit)

	// Submit the edits
	req = NewRequestWithValues(t, "POST", path.Join(user, repo, "_edit", branch, filePath),
		map[string]string{
			"_csrf":         htmlDoc.GetCSRF(),
			"last_commit":   lastCommit,
			"tree_path":     filePath,
			"content":       newContent,
			"commit_choice": "direct",
		},
	)
	resp = session.MakeRequest(t, req, http.StatusFound)

	// Verify the change
	req = NewRequest(t, "GET", path.Join(user, repo, "raw/branch", branch, filePath))
	resp = session.MakeRequest(t, req, http.StatusOK)
	assert.EqualValues(t, newContent, resp.Body.String())

	return resp
}

func testEditFileToNewBranch(t *testing.T, session *TestSession, user, repo, branch, targetBranch, filePath, newContent string) *httptest.ResponseRecorder {

	// Get to the 'edit this file' page
	req := NewRequest(t, "GET", path.Join(user, repo, "_edit", branch, filePath))
	resp := session.MakeRequest(t, req, http.StatusOK)

	htmlDoc := NewHTMLParser(t, resp.Body)
	lastCommit := htmlDoc.GetInputValueByName("last_commit")
	assert.NotEmpty(t, lastCommit)

	// Submit the edits
	req = NewRequestWithValues(t, "POST", path.Join(user, repo, "_edit", branch, filePath),
		map[string]string{
			"_csrf":           htmlDoc.GetCSRF(),
			"last_commit":     lastCommit,
			"tree_path":       filePath,
			"content":         newContent,
			"commit_choice":   "commit-to-new-branch",
			"new_branch_name": targetBranch,
		},
	)
	resp = session.MakeRequest(t, req, http.StatusFound)

	// Verify the change
	req = NewRequest(t, "GET", path.Join(user, repo, "raw/branch", targetBranch, filePath))
	resp = session.MakeRequest(t, req, http.StatusOK)
	assert.EqualValues(t, newContent, resp.Body.String())

	return resp
}

func TestEditFile(t *testing.T) {
	onGiteaRun(t, func(t *testing.T, u *url.URL) {
		session := loginUser(t, "user2")
		testEditFile(t, session, "user2", "repo1", "master", "README.md", "Hello, World (Edited)\n")
	})
}

func TestEditFileToNewBranch(t *testing.T) {
	onGiteaRun(t, func(t *testing.T, u *url.URL) {
		session := loginUser(t, "user2")
		testEditFileToNewBranch(t, session, "user2", "repo1", "master", "feature/test", "README.md", "Hello, World (Edited)\n")
	})
}