package core

// 推送历史测试：核心是「任务删了，灰标不该跟着消失」

import (
	"encoding/json"
	"net/http"
	"os"
	"path/filepath"
	"strings"
	"testing"

	"eh-downloader-wails/internal/eh"
)

func TestPushedStoreMarkAndPersist(t *testing.T) {
	dir := t.TempDir()
	p := filepath.Join(dir, "pushed.json")

	s := NewPushedStore(p)
	s.Mark("111", "aaa", "T1")
	s.Mark("222", "bbb", "T2")
	// 重复推送同一个，只更新时间不重复添加
	s.Mark("111", "aaa", "T1 又推了一次")
	s.Flush()

	if got := s.Count(); got != 2 {
		t.Fatalf("应有 2 条，实际 %d", got)
	}

	// 重新打开，验证真的落盘了
	s2 := NewPushedStore(p)
	if got := s2.Count(); got != 2 {
		t.Fatalf("重开后应有 2 条，实际 %d", got)
	}
	gids := map[string]string{}
	for _, e := range s2.Entries() {
		gids[e.GID] = e.Title
	}
	if gids["111"] != "T1 又推了一次" {
		t.Errorf("重复推送应更新标题，实际 %q", gids["111"])
	}
	if gids["222"] != "T2" {
		t.Errorf("222 标题不对: %q", gids["222"])
	}
}

func TestPushedStoreMarkBatch(t *testing.T) {
	dir := t.TempDir()
	s := NewPushedStore(filepath.Join(dir, "pushed.json"))
	s.MarkBatch([]PushedEntry{
		{GID: "1", Token: "a", Title: "A"},
		{GID: "2", Token: "b", Title: "B"},
		{GID: "1", Token: "a", Title: "A2"}, // 重复
	})
	if got := s.Count(); got != 2 {
		t.Fatalf("批量后应有 2 条，实际 %d", got)
	}
}

// 关键场景：任务被「清除已完成」删掉后，推送历史必须还在
func TestPushedSurvivesTaskDeletion(t *testing.T) {
	dir := t.TempDir()
	store := NewStore(filepath.Join(dir, "state.json"))
	pushed := NewPushedStore(filepath.Join(dir, "pushed.json"))

	// 模拟油猴推送
	store.AddTasks([]eh.GalleryRef{{GID: "111", Token: "aaa", Raw: "u", Title: "T1"}})
	pushed.Mark("111", "aaa", "T1")

	// 任务完成
	task := store.FindTask("111", "aaa")
	if task == nil {
		t.Fatal("任务没了")
	}
	task.Status = "done"
	store.UpsertTask(*task)

	// 清除已完成 —— 任务从列表消失
	n, gids := store.ClearFinishedWithGIDs()
	if n != 1 {
		t.Fatalf("应清掉 1 个，实际 %d", n)
	}
	if len(gids) != 1 || gids[0] != "111" {
		t.Fatalf("应返回 gid 111，实际 %v", gids)
	}
	if store.CountDone() != 0 {
		t.Error("任务应已清空")
	}

	// 但推送历史还在 —— 灰标不会消失
	if pushed.Count() != 1 {
		t.Fatalf("推送历史应还剩 1 条，实际 %d", pushed.Count())
	}
	entries := pushed.Entries()
	if entries[0].GID != "111" {
		t.Errorf("gid 不对: %s", entries[0].GID)
	}
}

func TestPushedMarkCompleted(t *testing.T) {
	dir := t.TempDir()
	s := NewPushedStore(filepath.Join(dir, "pushed.json"))
	s.Mark("111", "aaa", "T1")
	s.MarkCompleted("111")
	entries := s.Entries()
	if len(entries) != 1 || !entries[0].Completed {
		t.Fatalf("应标记为已完成: %+v", entries)
	}
}

func TestPushedStoreClear(t *testing.T) {
	dir := t.TempDir()
	p := filepath.Join(dir, "pushed.json")
	s := NewPushedStore(p)
	s.Mark("111", "aaa", "T1")
	s.Mark("222", "bbb", "T2")
	s.Clear()
	s.Flush()
	if got := s.Count(); got != 0 {
		t.Fatalf("清空后应为 0，实际 %d", got)
	}
	// 文件应该被写成空数组，而不是残留旧数据
	raw, err := os.ReadFile(p)
	if err != nil {
		t.Fatal(err)
	}
	var st PushedState
	if err := json.Unmarshal(raw, &st); err != nil {
		t.Fatalf("文件应还是合法 JSON: %v", err)
	}
	if len(st.Entries) != 0 {
		t.Errorf("文件里应为空，实际 %d 条", len(st.Entries))
	}
}

// 桥口 /pushed 接口
func TestBridgePushedEndpoint(t *testing.T) {
	dir := t.TempDir()
	store := NewStore(filepath.Join(dir, "state.json"))
	pushed := NewPushedStore(filepath.Join(dir, "pushed.json"))
	base := startTestBridgeWith(t, store, pushed)

	// 通过 /add 推一个
	body := `{"gid":"777","token":"ccc","url":"https://e-hentai.org/g/777/ccc/","title":"T777"}`
	req, _ := http.NewRequest("POST", base+"/add", strings.NewReader(body))
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("X-EHDL-Token", BridgeToken)
	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		t.Fatal(err)
	}
	resp.Body.Close()

	// /pushed 里能查到
	code, raw := getWithToken(t, base+"/pushed", BridgeToken)
	if code != http.StatusOK {
		t.Fatalf("应 200，实际 %d", code)
	}
	var j struct {
		OK    bool `json:"ok"`
		Count int  `json:"count"`
		Items []struct {
			GID   string `json:"gid"`
			Title string `json:"title"`
		} `json:"items"`
	}
	if err := json.Unmarshal(raw, &j); err != nil {
		t.Fatalf("解析失败: %v (%s)", err, raw)
	}
	if j.Count != 1 || len(j.Items) != 1 || j.Items[0].GID != "777" {
		t.Fatalf("/pushed 应返回 777，实际 %s", raw)
	}
	if j.Items[0].Title != "T777" {
		t.Errorf("标题不对: %q", j.Items[0].Title)
	}

	// 错 token -> 403
	code, _ = getWithToken(t, base+"/pushed", "bad")
	if code != http.StatusForbidden {
		t.Errorf("错 token 应 403，实际 %d", code)
	}
}