using Dalamud.IoC;
using Dalamud.Plugin;
using Dalamud.Plugin.Services;
using FFXIVClientStructs.FFXIV.Client.Game.Group;
using FFXIVClientStructs.FFXIV.Client.UI;
using FFXIVClientStructs.FFXIV.Component.GUI;

namespace PartyDamage;

public class Plugin : IDalamudPlugin {
    [PluginService]
    internal static IPluginLog Log { get; private set; }

    [PluginService]
    private IClientState ClientState { get; init; }

    [PluginService]
    private IFramework Framework { get; init; }

    private Client Client { get; }

    public Plugin() {
        this.Client = new Client();
        this.Framework!.Update += this.OnFramework;
    }

    public void Dispose() {
        this.Framework!.Update -= this.OnFramework;
        this.Client.Dispose();
    }

    private unsafe void OnFramework(IFramework framework) {
        if (this.Client.Data is not { } data) {
            return;
        }

        if (this.ClientState.LocalPlayer is not { } player) {
            return;
        }

        var list = (AddonPartyList*) AtkStage.Instance()->RaptureAtkUnitManager->GetAddonByName("_PartyList");

        var names = new List<string>();
        var group = GroupManager.Instance()->GetGroup();
        if (group == null) {
            Plugin.Log.Info("group null");
        }

        for (var i = 0; i < group->MemberCount; i++) {
            names.Add(group->PartyMembers[i].NameString);
        }

        var numPlayers = list->PartyMembers.Length;
        foreach (var combatant in data.Combatants.Values) {
            if (combatant.Name.EndsWith(" (YOU)")) {
                var name = combatant.Name[..^6];
                var nameNode = list->Pet.Name;
                if (nameNode != null && nameNode->NodeText.ToString() == name) {
                    this.UpdateMember(list->Pet, combatant);
                    continue;
                }
            }

            var idx = combatant.Name == "YOU"
                ? 0
                : names.IndexOf(combatant.Name);
            if (idx == -1 || idx >= numPlayers) {
                continue;
            }

            this.UpdateMember(list->PartyMembers[idx], combatant);
        }
    }

    private unsafe void UpdateMember(AddonPartyList.PartyListMemberStruct member, Combatant combatant) {
        var dpsText = combatant.EncDps switch {
            float.NaN => "?",
            float.PositiveInfinity => "0",
            float.NegativeInfinity => "0",
            < 1_000 => combatant.EncDps.ToString("N1"),
            < 1_000_000 => $"{combatant.EncDps / 1_000:N1}K",
            < 1_000_000_000 => $"{combatant.EncDps / 1_000_000:N1}M",
            _ => combatant.EncDps.ToString("N1"),
        };

        member.Name->SetText(dpsText);
    }
}