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// Copyright 2019 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package hugolib

import (
	"context"
	"fmt"
	"path/filepath"
	"testing"

	qt "github.com/frankban/quicktest"
	"github.com/gohugoio/hugo/common/loggers"
	"github.com/gohugoio/hugo/config"
	"github.com/gohugoio/hugo/config/testconfig"
	"github.com/gohugoio/hugo/source"
	"github.com/spf13/afero"
)

func TestPagesCapture(t *testing.T) {

	c := qt.New(t)

	afs := afero.NewMemMapFs()

	writeFile := func(filename string) {
		c.Assert(afero.WriteFile(afs, filepath.Join("content", filepath.FromSlash(filename)), []byte(fmt.Sprintf("content-%s", filename)), 0755), qt.IsNil)
	}

	writeFile("_index.md")
	writeFile("logo.png")
	writeFile("root.md")
	writeFile("blog/index.md")
	writeFile("blog/hello.md")
	writeFile("blog/images/sunset.png")
	writeFile("pages/page1.md")
	writeFile("pages/page2.md")

	cfg := config.New()
	d := testconfig.GetTestDeps(afs, cfg)
	sourceSpec := source.NewSourceSpec(d.PathSpec, nil, d.BaseFs.Content.Fs)

	t.Run("Collect", func(t *testing.T) {
		c := qt.New(t)
		proc := &testPagesCollectorProcessor{}
		coll := newPagesCollector(sourceSpec, nil, loggers.NewDefault(), nil, proc)
		c.Assert(coll.Collect(), qt.IsNil)
		// 2 bundles, 3 pages.
		c.Assert(len(proc.items), qt.Equals, 5)
	})

}

type testPagesCollectorProcessor struct {
	items   []any
	waitErr error
}

func (proc *testPagesCollectorProcessor) Process(item any) error {
	proc.items = append(proc.items, item)
	return nil
}

func (proc *testPagesCollectorProcessor) Start(ctx context.Context) context.Context {
	return ctx
}

func (proc *testPagesCollectorProcessor) Wait() error { return proc.waitErr }