package gui

import (
	"testing"
	"time"
)

func TestSplitCookieLinesNormalizesLineBreaks(t *testing.T) {
	tests := []struct {
		name  string
		input string
		want  []string
	}{
		{
			name:  "crlf_and_cr",
			input: "ck-a\r\nck-b\rck-c",
			want:  []string{"ck-a", "ck-b", "ck-c"},
		},
		{
			name:  "escaped_line_breaks",
			input: `ck-a\r\nck-b\rck-c\nck-d`,
			want:  []string{"ck-a", "ck-b", "ck-c", "ck-d"},
		},
		{
			name:  "slash_r_line_breaks",
			input: "ck-a/r/nck-b/rck-c/nck-d",
			want:  []string{"ck-a", "ck-b", "ck-c", "ck-d"},
		},
		{
			name:  "slash_n_only_is_preserved",
			input: "ck-a/nck-b",
			want:  []string{"ck-a/nck-b"},
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			lines := splitCookieLines(tt.input)
			if len(lines) != len(tt.want) {
				t.Fatalf("len(splitCookieLines()) = %d, want %d", len(lines), len(tt.want))
			}
			for i, line := range lines {
				if line.text != tt.want[i] {
					t.Fatalf("line[%d] = %q, want %q", i, line.text, tt.want[i])
				}
			}
		})
	}
}

func TestParseStartTimeAcceptsClockOnly(t *testing.T) {
	t.Run("future_today", func(t *testing.T) {
		now := time.Date(2026, 7, 6, 10, 20, 30, 0, time.Local)
		got := nextClockTime(now, 12, 5, 6)
		want := time.Date(2026, 7, 6, 12, 5, 6, 0, time.Local)
		if !got.Equal(want) {
			t.Fatalf("nextClockTime() = %s, want %s", got, want)
		}
	})

	t.Run("past_tomorrow", func(t *testing.T) {
		now := time.Date(2026, 7, 6, 10, 20, 30, 0, time.Local)
		got := nextClockTime(now, 9, 5, 6)
		want := time.Date(2026, 7, 7, 9, 5, 6, 0, time.Local)
		if !got.Equal(want) {
			t.Fatalf("nextClockTime() = %s, want %s", got, want)
		}
	})

	t.Run("parse_hms", func(t *testing.T) {
		got, err := parseStartTime("23:59:58")
		if err != nil {
			t.Fatalf("parseStartTime() error = %v", err)
		}
		if got.Hour() != 23 || got.Minute() != 59 || got.Second() != 58 {
			t.Fatalf("parseStartTime() = %s, want 23:59:58", got)
		}
	})
}

func TestAddLogDoesNotBlockWhenQueueIsFull(t *testing.T) {
	app := &App{
		logCh:   make(chan LogEntry),
		logStop: make(chan struct{}),
	}
	done := make(chan struct{})
	go func() {
		app.addLog("debug", "test")
		close(done)
	}()

	select {
	case <-done:
	case <-time.After(100 * time.Millisecond):
		t.Fatal("addLog blocked when log queue was full")
	}
	if dropped := app.droppedLogs.Load(); dropped != 1 {
		t.Fatalf("droppedLogs = %d, want 1", dropped)
	}
}

func TestParseTargetsAppliesPriceAndInventoryFilters(t *testing.T) {
	targets := parseTargets(Config{
		PID:        12889,
		Name:       "小黄鸭",
		TargetText: "13001\nauto",
		AutoSelect: true,
		MaxPrice:   1000,
		MinLeft:    2,
	})
	if len(targets) != 4 {
		t.Fatalf("targets=%d, want 4", len(targets))
	}
	for _, target := range targets {
		if target.MaxPrice != 1000 {
			t.Fatalf("target %+v maxPrice=%d, want 1000", target, target.MaxPrice)
		}
		if target.MinLeft != 2 {
			t.Fatalf("target %+v minLeft=%d, want 2", target, target.MinLeft)
		}
	}
}

func TestParseTargetsWithoutFiltersKeepsZeroValues(t *testing.T) {
	targets := parseTargets(Config{PID: 12889})
	if len(targets) != 1 {
		t.Fatalf("targets=%d, want 1", len(targets))
	}
	if targets[0].MaxPrice != 0 || targets[0].MinLeft != 0 {
		t.Fatalf("unexpected filters: %+v", targets[0])
	}
}