package suwayomi.tachidesk.manga.controller

/*
 * Copyright (C) Contributors to the Suwayomi project
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */

import io.javalin.http.HttpCode
import kotlinx.serialization.decodeFromString
import kotlinx.serialization.json.Json
import org.kodein.di.DI
import org.kodein.di.conf.global
import org.kodein.di.instance
import suwayomi.tachidesk.manga.impl.MangaList
import suwayomi.tachidesk.manga.impl.Search
import suwayomi.tachidesk.manga.impl.Search.FilterChange
import suwayomi.tachidesk.manga.impl.Search.FilterData
import suwayomi.tachidesk.manga.impl.Source
import suwayomi.tachidesk.manga.impl.Source.SourcePreferenceChange
import suwayomi.tachidesk.manga.model.dataclass.PagedMangaListDataClass
import suwayomi.tachidesk.manga.model.dataclass.SourceDataClass
import suwayomi.tachidesk.server.JavalinSetup.future
import suwayomi.tachidesk.server.util.handler
import suwayomi.tachidesk.server.util.pathParam
import suwayomi.tachidesk.server.util.queryParam
import suwayomi.tachidesk.server.util.withOperation

object SourceController {
    /** list of sources */
    val list = handler(
        documentWith = {
            withOperation {
                summary("Sources list")
                description("List of sources")
            }
        },
        behaviorOf = { ctx ->
            ctx.json(Source.getSourceList())
        },
        withResults = {
            json<Array<SourceDataClass>>(HttpCode.OK)
        }
    )

    /** fetch source with id `sourceId` */
    val retrieve = handler(
        pathParam<Long>("sourceId"),
        documentWith = {
            withOperation {
                summary("Source fetch")
                description("Fetch source with id `sourceId`")
            }
        },
        behaviorOf = { ctx, sourceId ->
            ctx.json(Source.getSource(sourceId)!!)
        },
        withResults = {
            json<SourceDataClass>(HttpCode.OK)
            httpCode(HttpCode.NOT_FOUND)
        }
    )

    /** popular mangas from source with id `sourceId` */
    val popular = handler(
        pathParam<Long>("sourceId"),
        pathParam<Int>("pageNum"),
        documentWith = {
            withOperation {
                summary("Source popular manga")
                description("Popular mangas from source with id `sourceId`")
            }
        },
        behaviorOf = { ctx, sourceId, pageNum ->
            ctx.future(
                future {
                    MangaList.getMangaList(sourceId, pageNum, popular = true)
                }
            )
        },
        withResults = {
            json<PagedMangaListDataClass>(HttpCode.OK)
        }
    )

    /** latest mangas from source with id `sourceId` */
    val latest = handler(
        pathParam<Long>("sourceId"),
        pathParam<Int>("pageNum"),
        documentWith = {
            withOperation {
                summary("Source latest manga")
                description("Latest mangas from source with id `sourceId`")
            }
        },
        behaviorOf = { ctx, sourceId, pageNum ->
            ctx.future(
                future {
                    MangaList.getMangaList(sourceId, pageNum, popular = false)
                }
            )
        },
        withResults = {
            json<PagedMangaListDataClass>(HttpCode.OK)
        }
    )

    /** fetch preferences of source with id `sourceId` */
    val getPreferences = handler(
        pathParam<Long>("sourceId"),
        documentWith = {
            withOperation {
                summary("Source preferences")
                description("Fetch preferences of source with id `sourceId`")
            }
        },
        behaviorOf = { ctx, sourceId ->
            ctx.json(Source.getSourcePreferences(sourceId))
        },
        withResults = {
            json<Array<Source.PreferenceObject>>(HttpCode.OK)
        }
    )

    /** set one preference of source with id `sourceId` */
    val setPreference = handler(
        pathParam<Long>("sourceId"),
        documentWith = {
            withOperation {
                summary("Source preference set")
                description("Set one preference of source with id `sourceId`")
            }
            body<SourcePreferenceChange>()
        },
        behaviorOf = { ctx, sourceId ->
            val preferenceChange = ctx.bodyAsClass(SourcePreferenceChange::class.java)
            ctx.json(Source.setSourcePreference(sourceId, preferenceChange))
        },
        withResults = {
            httpCode(HttpCode.OK)
        }
    )

    /** fetch filters of source with id `sourceId` */
    val getFilters = handler(
        pathParam<Long>("sourceId"),
        queryParam("reset", false),
        documentWith = {
            withOperation {
                summary("Source filters")
                description("Fetch filters of source with id `sourceId`")
            }
        },
        behaviorOf = { ctx, sourceId, reset ->
            ctx.json(Search.getFilterList(sourceId, reset))
        },
        withResults = {
            json<Array<Search.FilterObject>>(HttpCode.OK)
        }
    )

    private val json by DI.global.instance<Json>()

    /** change filters of source with id `sourceId` */
    val setFilters = handler(
        pathParam<Long>("sourceId"),
        documentWith = {
            withOperation {
                summary("Source filters set")
                description("Change filters of source with id `sourceId`")
            }
            body<FilterChange>()
            body<Array<FilterChange>>()
        },
        behaviorOf = { ctx, sourceId ->
            val filterChange = try {
                json.decodeFromString<List<FilterChange>>(ctx.body())
            } catch (e: Exception) {
                listOf(json.decodeFromString<FilterChange>(ctx.body()))
            }

            ctx.json(Search.setFilter(sourceId, filterChange))
        },
        withResults = {
            httpCode(HttpCode.OK)
        }
    )

    /** single source search */
    val searchSingle = handler(
        pathParam<Long>("sourceId"),
        queryParam("searchTerm", ""),
        queryParam("pageNum", 1),
        documentWith = {
            withOperation {
                summary("Source search")
                description("Single source search")
            }
        },
        behaviorOf = { ctx, sourceId, searchTerm, pageNum ->
            ctx.future(future { Search.sourceSearch(sourceId, searchTerm, pageNum) })
        },
        withResults = {
            json<PagedMangaListDataClass>(HttpCode.OK)
        }
    )

    /** quick search single source filter */
    val quickSearchSingle = handler(
        pathParam<Long>("sourceId"),
        queryParam("pageNum", 1),
        documentWith = {
            withOperation {
                summary("Source manga quick search")
                description("Returns list of manga from source matching posted searchTerm and filter")
            }
            body<FilterData>()
        },
        behaviorOf = { ctx, sourceId, pageNum ->
            val filter = json.decodeFromString<FilterData>(ctx.body())
            ctx.future(future { Search.sourceFilter(sourceId, pageNum, filter) })
        },
        withResults = {
            json<PagedMangaListDataClass>(HttpCode.OK)
        }
    )

    /** all source search */
    val searchAll = handler(
        pathParam<String>("searchTerm"),
        documentWith = {
            withOperation {
                summary("Source global search")
                description("All source search")
            }
        },
        behaviorOf = { ctx, searchTerm -> // TODO
            ctx.json(Search.sourceGlobalSearch(searchTerm))
        },
        withResults = {
            httpCode(HttpCode.OK)
        }
    )
}