using Microsoft.EntityFrameworkCore;

namespace SVSim.Database.Models.Config;

/// <summary>
/// Tunables for pack-opening RNG. Defaults reproduce the original Shadowverse Classic rates
/// exactly so the cutover from hardcoded magic numbers is zero-behavior-change.
/// </summary>
[Owned]
public class PackRateConfig
{
    /// <summary>
    /// Per-card-slot probability of upgrading any drawn card to its foil/animated twin.
    /// Applied AFTER rarity selection — independent of rarity, slot position, and pack category.
    /// Default 0.08 (8%). Cards without a foil twin in master data keep the non-foil silently.
    /// </summary>
    public double AnimatedRate { get; set; } = 0.08;

    /// <summary>
    /// Global default rarity weights, used for any slot that has no entry in
    /// <see cref="PerSlot"/>. Defaults match SV Classic main-slot. Weights sum to 0.9994;
    /// the 0.06% slack absorbs into Bronze via the PickRarity catch-all band.
    /// </summary>
    public SlotRarityWeights Default { get; set; } = new()
    {
        Bronze = 0.6744, Silver = 0.25, Gold = 0.06, Legendary = 0.015,
    };

    /// <summary>
    /// Per-slot overrides (1-based slot index) applied to all packs. A missing slot falls back
    /// to <see cref="Default"/>. Each entry is a FULL OVERRIDE, not a delta — if you change
    /// <see cref="Default"/>, existing PerSlot entries do NOT auto-recompute. The slot-8 default
    /// expresses the SV Classic "Silver-or-better guarantee" as data (Bronze=0) instead of a
    /// separate code path.
    /// </summary>
    /// <summary>
    /// Per-slot overrides keyed by 1-based slot index (stored as a list for EF Core 8 json
    /// compatibility — Dictionary&lt;string,T&gt; of complex owned types is not supported).
    /// Look up by <see cref="SlotRarityWeights.Slot"/>. A missing slot falls back to
    /// <see cref="Default"/>. Slot-8 entry expresses the SV Classic "Silver-or-better
    /// guarantee" as data (Bronze=0).
    /// </summary>
    public List<SlotRarityWeights> PerSlot { get; set; } =
    [
        new() { Slot = "8", Bronze = 0, Silver = 0.7692, Gold = 0.1846, Legendary = 0.0462 },
    ];
}