using System.Text.Json;

namespace PlotLine.Models;

public static class CharacterEnrichmentStatuses
{
    public const string Queued = "Queued";
    public const string Running = "Running";
    public const string Completed = "Completed";
    public const string Failed = "Failed";
    public const string Superseded = "Superseded";
}

public sealed class CharacterEnrichmentRun
{
    public int CharacterEnrichmentRunID { get; set; }
    public int ProjectID { get; set; }
    public int BookID { get; set; }
    public int UserID { get; set; }
    public int? CharacterID { get; set; }
    public int? StoryIntelligenceBookPipelineID { get; set; }
    public string CharacterResolutionVersion { get; set; } = string.Empty;
    public string Status { get; set; } = CharacterEnrichmentStatuses.Queued;
    public int TotalCharacters { get; set; }
    public int ProcessedCharacters { get; set; }
    public string? CurrentStage { get; set; }
    public string? CurrentMessage { get; set; }
    public DateTime QueuedUtc { get; set; }
    public DateTime? StartedUtc { get; set; }
    public DateTime? CompletedUtc { get; set; }
    public DateTime? FailedUtc { get; set; }
    public int AttemptCount { get; set; }
    public string? Model { get; set; }
    public int? InputTokens { get; set; }
    public int? OutputTokens { get; set; }
    public int? TotalTokens { get; set; }
    public long? DurationMs { get; set; }
    public string? ErrorMessage { get; set; }
    public string? ErrorDetail { get; set; }
    public DateTime UpdatedUtc { get; set; }
    public bool WasCoalesced { get; set; }
}

public sealed class CharacterEnrichmentQueueRequest
{
    public int ProjectID { get; init; }
    public int BookID { get; init; }
    public int UserID { get; init; }
    public int? StoryIntelligenceBookPipelineID { get; init; }
    public string CharacterResolutionVersion { get; init; } = string.Empty;
}

public sealed class CharacterEnrichmentCharacterQueueRequest
{
    public int CharacterID { get; init; }
    public int UserID { get; init; }
    public int? BookID { get; init; }
}

public sealed class CharacterEnrichmentCharacterStatus
{
    public int CharacterID { get; init; }
    public int? BookID { get; init; }
    public int? CharacterEnrichmentRunID { get; init; }
    public string Status { get; init; } = "Not analysed";
    public string? CurrentStage { get; init; }
    public string? CurrentMessage { get; init; }
    public DateTime? LastAnalysedUtc { get; init; }
    public string? ErrorMessage { get; init; }
    public string? Summary { get; init; }
    public string? DateOfBirth { get; init; }
    public string? AgeAtStartOfSeries { get; init; }
    public string? Sex { get; init; }
    public string? Height { get; init; }
    public string? EyeColour { get; init; }
    public DateTime UpdatedUtc { get; init; } = DateTime.UtcNow;
    public bool IsActive => Status is CharacterEnrichmentStatuses.Queued or CharacterEnrichmentStatuses.Running;
    public bool IsCompleted => Status == CharacterEnrichmentStatuses.Completed;
}

public sealed class CharacterEnrichmentProgressUpdate
{
    public int CharacterEnrichmentRunID { get; init; }
    public int TotalCharacters { get; init; }
    public int ProcessedCharacters { get; init; }
    public string CurrentStage { get; init; } = string.Empty;
    public string CurrentMessage { get; init; } = string.Empty;
}

public sealed class CharacterEnrichmentCompletionRequest
{
    public int CharacterEnrichmentRunID { get; init; }
    public string Model { get; init; } = string.Empty;
    public int? InputTokens { get; init; }
    public int? OutputTokens { get; init; }
    public int? TotalTokens { get; init; }
    public long? DurationMs { get; init; }
}

public sealed class CharacterEnrichmentContext
{
    public int ProjectID { get; init; }
    public int BookID { get; init; }
    public string BookTitle { get; init; } = string.Empty;
    public string? StoryEra { get; init; }
    public DateTime? SeriesStartDate { get; init; }
    public IReadOnlyList<CharacterEnrichmentCharacterContext> Characters { get; init; } = [];
}

public sealed class CharacterEnrichmentCharacterContext
{
    public int CharacterID { get; init; }
    public string CharacterName { get; init; } = string.Empty;
    public DateTime? BirthDate { get; init; }
    public int? AgeAtSeriesStart { get; init; }
    public string? Height { get; init; }
    public string? EyeColour { get; init; }
    public string? DefaultDescription { get; init; }
    public IReadOnlyList<string> Aliases { get; init; } = [];
    public IReadOnlyList<CharacterEnrichmentSceneContext> Scenes { get; init; } = [];
}

public sealed class CharacterEnrichmentSceneContext
{
    public int SceneID { get; init; }
    public int ChapterID { get; init; }
    public decimal ChapterNumber { get; init; }
    public string ChapterTitle { get; init; } = string.Empty;
    public decimal SceneNumber { get; init; }
    public string SceneTitle { get; init; } = string.Empty;
    public string SourceText { get; init; } = string.Empty;
}

public sealed class CharacterEnrichmentResult
{
    public string SchemaVersion { get; init; } = "1";
    public IReadOnlyList<CharacterEnrichmentCharacterResult> Characters { get; init; } = [];

    public static CharacterEnrichmentResult FromJson(string json)
        => JsonSerializer.Deserialize<CharacterEnrichmentResult>(
            json,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true }) ?? new();
}

public sealed class CharacterEnrichmentCharacterResult
{
    public int CharacterID { get; init; }
    public string Summary { get; init; } = string.Empty;
    public decimal Confidence { get; init; }
    public CharacterEnrichmentFactResult DateOfBirth { get; init; } = new();
    public CharacterEnrichmentFactResult AgeAtStartOfSeries { get; init; } = new();
    public CharacterEnrichmentFactResult Sex { get; init; } = new();
    public CharacterEnrichmentFactResult Height { get; init; } = new();
    public CharacterEnrichmentFactResult EyeColour { get; init; } = new();
    public IReadOnlyList<int> EvidenceSceneIDs { get; init; } = [];
}

public sealed class CharacterEnrichmentFactResult
{
    public string? Value { get; init; }
    public decimal Confidence { get; init; }
    public string? Evidence { get; init; }
    public int? SceneID { get; init; }
}

public sealed class CharacterEnrichmentProgressEvent
{
    public int CharacterEnrichmentRunID { get; init; }
    public int UserID { get; init; }
    public int ProjectID { get; init; }
    public int BookID { get; init; }
    public int? CharacterID { get; init; }
    public string Status { get; init; } = string.Empty;
    public int TotalCharacters { get; init; }
    public int ProcessedCharacters { get; init; }
    public string CurrentStage { get; init; } = string.Empty;
    public string CurrentMessage { get; init; } = string.Empty;
    public string? ErrorMessage { get; init; }
    public DateTime UpdatedUtc { get; init; } = DateTime.UtcNow;
    public bool IsActive => Status is CharacterEnrichmentStatuses.Queued or CharacterEnrichmentStatuses.Running;
    public bool IsCompleted => Status == CharacterEnrichmentStatuses.Completed;
}