// Dump self-targeted beneficial spells from portal.dat's SpellTable so buff
// selection can be built on what the data actually says rather than on
// remembered spell names.
using AcDream.Content;
using AcDream.Core.Spells;
using DatReaderWriter;
using DatReaderWriter.Options;
using SysEnv = System.Environment;

string datDir = SysEnv.GetEnvironmentVariable("ACDREAM_DAT_DIR")
    ?? Path.Combine(SysEnv.GetFolderPath(SysEnv.SpecialFolder.UserProfile),
                    "Documents", "Asheron's Call");
using var dats = new DatCollection(datDir, DatAccessType.Read);
using var adapter = new DatCollectionAdapter(dats);
MagicCatalog catalog = MagicCatalog.Load(adapter);
SpellTable table = catalog.SpellTable;
Console.WriteLine($"spells loaded: {table.Count}");

if (args.Length > 0 && args[0] == "--cursors")
{
    // Resolve the retail global-cursor enum table (6) to DAT surface ids, the
    // same walk RetailCursorResolver does: portal master map -> table 6 -> id.
    uint masterDid = (uint)dats.Portal.Header.MasterMapId;
    if (!dats.Portal.TryGet<DatReaderWriter.DBObjs.EnumIDMap>(masterDid, out var master) || master is null)
        throw new InvalidOperationException("no master enum map");
    if (!master.ClientEnumToID.TryGetValue(6u, out uint cursorMapDid))
        throw new InvalidOperationException("no cursor enum table 6");
    if (!dats.Portal.TryGet<DatReaderWriter.DBObjs.EnumIDMap>(cursorMapDid, out var cursorMap) || cursorMap is null)
        throw new InvalidOperationException("cursor map missing");
    foreach (var kv in cursorMap.ClientEnumToID.OrderBy(k => k.Key))
        Console.WriteLine($"cursorEnum 0x{kv.Key:X2} -> surface 0x{kv.Value:X8}");
    return;
}

if (args.Length > 0 && args[0] == "--flags")
{
    string want = args.Length > 1 ? args[1].ToLowerInvariant() : "bane";
    foreach (uint id in table.SpellIds.OrderBy(i => i))
    {
        if (!table.TryGet(id, out var m)) continue;
        if (!m.Name.ToLowerInvariant().Contains(want)) continue;
        if (m.Generation != 1 && !m.Name.Contains(" I", StringComparison.Ordinal)) continue;
        Console.WriteLine(
            $"0x{m.SpellId:X4} fam{m.Family,-5} gen{m.Generation,-3} " +
            $"flags=0x{m.Flags:X4} mask=0x{m.TargetMask:X4} " +
            $"self={m.IsSelfTargeted,-5} unt={m.IsUntargeted,-5} ben={m.IsBeneficial,-5} " +
            $"school={m.School,-20} {m.Name,-28} | {m.Description}");
    }
    return;
}

if (args.Length > 0 && args[0] == "--desc")
{
    foreach (uint id in table.SpellIds.OrderBy(i => i))
    {
        if (!table.TryGet(id, out var m)) continue;
        if (!m.IsSelfTargeted || !m.IsBeneficial || m.IsDebuff) continue;
        if (m.Generation != 1) continue;      // one representative per line
        Console.WriteLine($"fam {m.Family,-5} 0x{m.SpellId:X4} {m.Name,-40} | {m.Description}");
    }
    return;
}

if (args.Length > 0 && args[0] == "--skills")
{
    var skillTable = dats.Get<DatReaderWriter.DBObjs.SkillTable>(0x0E000004u)
        ?? throw new InvalidOperationException("SkillTable 0x0E000004 missing");
    Console.WriteLine($"skills: {skillTable.Skills.Count}");
    foreach (var kv in skillTable.Skills.OrderBy(k => (uint)k.Key))
        Console.WriteLine($"  {(uint)kv.Key,-4} {kv.Value.Name}");
    return;
}

if (args.Length > 0 && args[0] == "--enum")
{
    string outPath = args.Length > 1
        ? args[1]
        : Path.Combine("src", "AcDream.Plugins.MossTank", "SpellId.g.cs");
    SpellDump.EmitEnum.Run(table, outPath, "AcDream.Plugins.MossTank", "SpellId");
    return;
}

string filter = args.Length > 0 ? args[0].ToLowerInvariant() : "";

var rows = table.SpellIds
    .Select(id => table.TryGet(id, out var m) ? m : null)
    .Where(s => s is not null)!
    .Select(s => s!)
    .Where(s => s.IsSelfTargeted && s.IsBeneficial && !s.IsDebuff)
    .Where(s => filter.Length == 0 || s.Name.ToLowerInvariant().Contains(filter))
    .OrderBy(s => s.Family).ThenBy(s => s.Generation)
    .ToList();

Console.WriteLine($"self-targeted beneficial: {rows.Count}\n");
Console.WriteLine($"{"family",-8} {"gen",-4} {"id",-8} {"school",-12} {"mana",-5} {"dur",-8} name");
foreach (var s in rows)
{
    Console.WriteLine(
        $"{s.Family,-8} {s.Generation,-4} 0x{s.SpellId:X4}   {s.School,-12} {s.ManaCost,-5} {s.Duration,-8:F0} {s.Name}");
}