// Fenrir console screen reader.
// Copyright (c) 2026 Storm Dragon
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along with
// this program. If not, see <https://www.gnu.org/licenses/gpl-3.0.html>.

package progress

import (
	"math"
	"strings"
	"testing"
	"time"
)

func TestPythonProgressFormats(t *testing.T) {
	for _, testCase := range []struct {
		text       string
		percentage float64
		interval   time.Duration
	}{
		{"Downloading 0%", 0, 0}, {"Downloading 25.5%", 25.5, 0}, {"100%", 100, 0},
		{"15/100", 15, 0}, {"3 of 10", 30, 0}, {"[####    ]", 50, 0}, {"[====>     ]", 50, 0}, {"|█████     |", 50, 0}, {"[▌   ]", 12.5, 0},
		{" 50 100M 50 50M 0 0 10M 0 0:00:10 0:00:05 0:00:05 10M", 50, 0},
		{"frame= 10 fps=25 size=100kB time=00:00:03.50 bitrate=200kbits/s speed=1.0x", 50, 2 * time.Second},
		{"remaining: 12s", 50, 2 * time.Second}, {"generating 20 tokens", 50, 2 * time.Second},
		{"1024 bytes copied, 1 s, 1 kB/s", 50, 2 * time.Second}, {"2.5 MiB 1.2 MiB/s 00:02", 50, 2 * time.Second},
		{"Loading...", 50, 2 * time.Second}, {"⠋ preparing", 50, time.Second}, {"🌒 working", 50, time.Second}, {"◑", 50, time.Second},
		{"✻ Generating answer… (esc to interrupt)", 50, time.Second}, {"Working (ctrl+c to interrupt)", 50, time.Second},
		{"• Checking files…", 50, time.Second}, {"◦ Working on files", 50, time.Second},
		{"🔄 Thinking 3s", 50, 1500 * time.Millisecond}, {"🔄 Thinking 23s", 50, 2 * time.Second},
		{"● Task Running job", 50, 1500 * time.Millisecond},
	} {
		t.Run(testCase.text, func(t *testing.T) {
			got, ok := Detect(testCase.text)
			if !ok || math.Abs(got.Percentage-testCase.percentage) > 0.001 || got.Interval != testCase.interval {
				t.Fatalf("got %+v, %v", got, ok)
			}
		})
	}
}

func TestFalsePositives(t *testing.T) {
	for _, text := range []string{
		"https://example.invalid/50%", "www.example.invalid/3/10", "humidity 50%", "CPU usage 70%", "weather 30%",
		"-1%", "1000%", "1.2.50%", "Page 3 of 10", "chapter 1/5", "10/25/2026", "5/0", "20/10", "1/1001",
		"[#channel]", "[item]", "[*]", "[--]", "10 20 30 40 50 60", "Speed", "normal text", "frame=10 fps=25 size=20",
		"150 100M 150 150M 0 0 10M 0 0:00:10 0:00:05 0:00:05 10M",
		"50 100M 30 30M 0 0 10M 0 0:00:10 0:00:05 0:00:05 10M",
	} {
		if got, ok := Detect(text); ok {
			t.Errorf("false positive %q: %+v", text, got)
		}
	}
}

func TestExplicitRows(t *testing.T) {
	for _, text := range []string{"package 50% [####    ]", "package 50% |####    |", "package 50% 2 MiB/s", "frame=10 time=00:01:20 fps=25"} {
		if !explicit(strings.Repeat("long-name", 30) + " " + text) {
			t.Error(text)
		}
	}
	for _, text := range []string{"50%", "Speed", "https://example.invalid 50% [####    ]", "normal table 1 2 3"} {
		if explicit(text) {
			t.Error(text)
		}
	}
}