using System;

namespace PKHeX.Core;

public sealed class ItemStorage6AO : IItemStorage
{
    public static readonly ItemStorage6AO Instance = new();

    internal static ReadOnlySpan<ushort> Pouch_TMHM_AO => new ushort[]
    {
        328, 329, 330, 331, 332, 333, 334, 335, 336, 337,
        338, 339, 340, 341, 342, 343, 344, 345, 346, 347,
        348, 349, 350, 351, 352, 353, 354, 355, 356, 357,
        358, 359, 360, 361, 362, 363, 364, 365, 366, 367,
        368, 369, 370, 371, 372, 373, 374, 375, 376, 377,
        378, 379, 380, 381, 382, 383, 384, 385, 386, 387,
        388, 389, 390, 391, 392, 393, 394, 395, 396, 397,
        398, 399, 400, 401, 402, 403, 404, 405, 406, 407,
        408, 409, 410, 411, 412, 413, 414, 415, 416, 417,
        418, 419, // 01-92

        618, 619, 620, // 93-95
        690, 691, 692, 693, 694, // 96-100

        420, 421, 422, 423, 424,

        // OR/AS
        425, 737,
    };

    private static ReadOnlySpan<ushort> Pouch_Items_AO => new ushort[]
    {
        // Flutes moved to the Medicine pouch.
        001, 002, 003, 004, 005, 006, 007, 008, 009, 010, 011, 012, 013, 014, 015, 016, 055, 056,
        057, 058, 059, 060, 061, 062, 063, 064,                068, 069, 070, 071, 072, 073, 074, 075,
        076, 077, 078, 079, 080, 081, 082, 083, 084, 085, 086, 087, 088, 089, 090, 091, 092, 093, 094,
        099, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112, 116, 117, 118, 119, 135, 136,
        213, 214, 215, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232,
        233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251,
        252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270,
        271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289,
        290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308,
        309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327,
        492, 493, 494, 495, 496, 497, 498, 499, 500, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546,
        547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 571,
        572, 573, 576, 577, 580, 581, 582, 583, 584, 585, 586, 587, 588, 589, 590, 639, 640, 644, 646,
        647, 648, 649, 650, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663, 664, 665, 666,
        667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684, 685,
        699, 704, 710, 711, 715,

        // OR/AS Additions
        534, 535,
        752, 753, 754, 755, 756, 757, 758, 759, 760, 761, 762, 763, 764, 767, 768, 769, 770,
    };

    private static ReadOnlySpan<ushort> Pouch_Key_AO => new ushort[]
    {
        216, 445, 446, 447, 465, 466, 471, 628,
        629, 631, 632, 638, 697,

        // Illegal
        // 716, 717, 723, 745, 746, 747, 748, 749, 750, 766,

        // ORAS
        457, 474, 503,

        718, 719,
        720, 721, 722,      724, 725, 726, 727, 728, 729,
        730, 731, 732, 733, 734, 735, 736, 738, 739,
        740, 741, 742, 743, 744,
        751,
        765, 771, 772, 774, 775,
    };

    private static ReadOnlySpan<ushort> Pouch_Medicine_AO => new ushort[]
    {
        017, 018, 019, 020, 021, 022, 023, 024, 025, 026, 027, 028, 029, 030, 031, 032, 033,
        034, 035, 036, 037, 038, 039, 040, 041, 042, 043, 044, 045, 046, 047, 048, 049, 050, 051,
        052, 053, 054, 134, 504, 565, 566, 567, 568, 569, 570, 571, 591, 645, 708, 709,

        // OR/AS -- Moved from Items pouch.
        065, 066, 067,
    };

    public static ushort[] GetAllHeld()
    {
        return ArrayUtil.ConcatAll(Pouch_Items_AO, Pouch_Medicine_AO, ItemStorage6XY.Pouch_Berry_XY);
    }

    public bool IsLegal(InventoryType type, int itemIndex, int itemCount)
    {
        if (type is InventoryType.KeyItems)
            return true;
        return ItemStorage6XY.Unreleased.BinarySearch((ushort)itemIndex) < 0;
    }

    public ReadOnlySpan<ushort> GetItems(InventoryType type) => type switch
    {
        InventoryType.Items => Pouch_Items_AO,
        InventoryType.KeyItems => Pouch_Key_AO,
        InventoryType.TMHMs => Pouch_TMHM_AO,
        InventoryType.Medicine => Pouch_Medicine_AO,
        InventoryType.Berries => ItemStorage6XY.Pouch_Berry_XY,
        _ => throw new ArgumentOutOfRangeException(nameof(type), type, null),
    };
}