// SPDX-License-Identifier: GPL-3.0-or-later
// MyIce Kotlin Multiplatform — schedule/convocation viewer
// Copyright (C) 2026  parano.ch
//
// 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/>.

package ch.parano.myice.cache

import ch.parano.myice.models.Event
import com.russhwolf.settings.MapSettings
import com.russhwolf.settings.Settings
import kotlin.test.Test
import kotlin.test.assertEquals
import kotlin.test.assertNotNull
import kotlin.test.assertNull
import kotlin.test.assertTrue

class ScheduleCacheTest {

    private fun createCache(): Pair<ScheduleCache, Settings> {
        val settings = MapSettings()
        return ScheduleCache(settings) to settings
    }

    private fun sampleEvent(id: String, eventType: String = "Jeu") = Event(
        idEvent = id,
        agegroup = "U13 (Elite)",
        name = "U13 Elite - HC Ajoie",
        title = "U13 (Elite)\nGame\nArena",
        opponent = "HC Ajoie",
        place = "Arena",
        start = "2024-11-10T14:00:00",
        end = "2024-11-10T16:15:00",
        color = "#e4222e",
        eventType = eventType,
    )

    @Test
    fun testSaveAndLoadEvents() {
        val (cache, _) = createCache()
        val events = listOf(sampleEvent("1"), sampleEvent("2"))
        cache.saveEvents("default", events)

        val loaded = cache.loadEvents("default")
        assertNotNull(loaded)
        assertEquals(2, loaded.size)
        assertEquals("1", loaded[0].idEvent)
        assertEquals("2", loaded[1].idEvent)
    }

    @Test
    fun testLoadEventsReturnsNullWhenEmpty() {
        val (cache, _) = createCache()
        assertNull(cache.loadEvents("default"))
    }

    @Test
    fun testGetLastUpdated() {
        val (cache, _) = createCache()
        assertNull(cache.getLastUpdated("default"))

        cache.saveEvents("default", listOf(sampleEvent("1")))
        val timestamp = cache.getLastUpdated("default")
        assertNotNull(timestamp)
        assertTrue(timestamp > 0)
    }

    @Test
    fun testSaveAndLoadFilters() {
        val (cache, _) = createCache()
        cache.saveFilters("default", agegroup = "U13 (Elite)", subgroup = "U13 Elite")

        val (agegroup, subgroup) = cache.loadFilters("default")
        assertEquals("U13 (Elite)", agegroup)
        assertEquals("U13 Elite", subgroup)
    }

    @Test
    fun testSaveFiltersWithNulls() {
        val (cache, _) = createCache()
        cache.saveFilters("default", agegroup = "U13", subgroup = "Elite")
        cache.saveFilters("default", agegroup = null, subgroup = null)

        val (agegroup, subgroup) = cache.loadFilters("default")
        assertNull(agegroup)
        assertNull(subgroup)
    }

    @Test
    fun testClearCache() {
        val (cache, _) = createCache()
        cache.saveEvents("default", listOf(sampleEvent("1")))
        cache.saveFilters("default", "U13", "Elite")

        cache.clearCache("default")

        assertNull(cache.loadEvents("default"))
        val (agegroup, subgroup) = cache.loadFilters("default")
        assertNull(agegroup)
        assertNull(subgroup)
    }

    @Test
    fun testClearAllCache() {
        val (cache, _) = createCache()
        cache.saveEvents("default", listOf(sampleEvent("1")))
        cache.saveEvents("leonard", listOf(sampleEvent("2")))

        cache.clearAllCache()

        assertNull(cache.loadEvents("default"))
        assertNull(cache.loadEvents("leonard"))
    }

    @Test
    fun testTypeFilterPersistence() {
        val (cache, _) = createCache()
        cache.saveTypeFilter("default", "GAMES")
        assertEquals("GAMES", cache.loadTypeFilter("default"))
    }

    @Test
    fun testTypeFilterNullWhenNotSet() {
        val (cache, _) = createCache()
        assertNull(cache.loadTypeFilter("default"))
    }
}