using System.Data;
using Dapper;
using PlotLine.Models;

namespace PlotLine.Data;

public interface IStoryIntelligenceReviewCandidateRepository
{
    Task<StoryIntelligenceReviewCandidateGeneration> BeginGenerationAsync(int projectId, int bookId, string module, string source);
    Task<StoryIntelligenceReviewCandidateGeneration?> GetCurrentGenerationAsync(int bookId, string module);
    Task<StoryIntelligenceReviewCandidateRow> SaveCandidateAsync(StoryIntelligenceReviewCandidateSaveRequest request);
    Task SaveEvidenceAsync(int reviewCandidateId, int? sceneId, string evidenceText, decimal? confidence, int sortOrder);
    Task<StoryIntelligenceReviewCandidateGeneration?> CompleteGenerationAsync(int generationId);
    Task FailGenerationAsync(int generationId, string errorMessage);
    Task<IReadOnlyList<StoryIntelligenceReviewCandidateRow>> ListPageAsync(int bookId, string module, int pageNumber, int pageSize);
    Task<StoryIntelligenceReviewCandidateGeneration?> MarkReviewedAsync(StoryIntelligenceReviewCandidateDecisionRequest request);
    Task ResetBookAsync(int bookId);
}

public sealed class StoryIntelligenceReviewCandidateRepository(ISqlConnectionFactory connectionFactory) : IStoryIntelligenceReviewCandidateRepository
{
    public async Task<StoryIntelligenceReviewCandidateGeneration> BeginGenerationAsync(int projectId, int bookId, string module, string source)
    {
        using var connection = connectionFactory.CreateConnection();
        return await connection.QuerySingleAsync<StoryIntelligenceReviewCandidateGeneration>(
            "dbo.StoryIntelligenceReviewCandidateGeneration_Begin",
            new { ProjectID = projectId, BookID = bookId, Module = module, Source = source },
            commandType: CommandType.StoredProcedure);
    }

    public async Task<StoryIntelligenceReviewCandidateGeneration?> GetCurrentGenerationAsync(int bookId, string module)
    {
        using var connection = connectionFactory.CreateConnection();
        return await connection.QuerySingleOrDefaultAsync<StoryIntelligenceReviewCandidateGeneration>(
            "dbo.StoryIntelligenceReviewCandidateGeneration_GetCurrent",
            new { BookID = bookId, Module = module },
            commandType: CommandType.StoredProcedure);
    }

    public async Task<StoryIntelligenceReviewCandidateRow> SaveCandidateAsync(StoryIntelligenceReviewCandidateSaveRequest request)
    {
        using var connection = connectionFactory.CreateConnection();
        return await connection.QuerySingleAsync<StoryIntelligenceReviewCandidateRow>(
            "dbo.StoryIntelligenceReviewCandidate_Save",
            new
            {
                request.ReviewCandidateGenerationID,
                request.ProjectID,
                request.BookID,
                request.Module,
                request.StableKey,
                request.CandidateType,
                request.DisplayName,
                request.SortOrder,
                request.Confidence,
                request.ExistingCanonicalID,
                request.CandidatePayloadJson
            },
            commandType: CommandType.StoredProcedure);
    }

    public async Task SaveEvidenceAsync(int reviewCandidateId, int? sceneId, string evidenceText, decimal? confidence, int sortOrder)
    {
        using var connection = connectionFactory.CreateConnection();
        await connection.ExecuteAsync(
            "dbo.StoryIntelligenceReviewCandidateEvidence_Save",
            new
            {
                ReviewCandidateID = reviewCandidateId,
                SceneID = sceneId,
                EvidenceText = evidenceText,
                Confidence = confidence,
                SortOrder = sortOrder
            },
            commandType: CommandType.StoredProcedure);
    }

    public async Task<StoryIntelligenceReviewCandidateGeneration?> CompleteGenerationAsync(int generationId)
    {
        using var connection = connectionFactory.CreateConnection();
        return await connection.QuerySingleOrDefaultAsync<StoryIntelligenceReviewCandidateGeneration>(
            "dbo.StoryIntelligenceReviewCandidateGeneration_Complete",
            new { ReviewCandidateGenerationID = generationId },
            commandType: CommandType.StoredProcedure);
    }

    public async Task FailGenerationAsync(int generationId, string errorMessage)
    {
        using var connection = connectionFactory.CreateConnection();
        await connection.ExecuteAsync(
            "dbo.StoryIntelligenceReviewCandidateGeneration_Fail",
            new { ReviewCandidateGenerationID = generationId, ErrorMessage = errorMessage },
            commandType: CommandType.StoredProcedure);
    }

    public async Task<IReadOnlyList<StoryIntelligenceReviewCandidateRow>> ListPageAsync(int bookId, string module, int pageNumber, int pageSize)
    {
        using var connection = connectionFactory.CreateConnection();
        var rows = await connection.QueryAsync<StoryIntelligenceReviewCandidateRow>(
            "dbo.StoryIntelligenceReviewCandidate_ListPage",
            new { BookID = bookId, Module = module, PageNumber = pageNumber, PageSize = pageSize },
            commandType: CommandType.StoredProcedure);
        return rows.ToList();
    }

    public async Task<StoryIntelligenceReviewCandidateGeneration?> MarkReviewedAsync(StoryIntelligenceReviewCandidateDecisionRequest request)
    {
        using var connection = connectionFactory.CreateConnection();
        return await connection.QuerySingleOrDefaultAsync<StoryIntelligenceReviewCandidateGeneration>(
            "dbo.StoryIntelligenceReviewCandidate_MarkReviewed",
            new
            {
                request.BookID,
                request.Module,
                request.StableKey,
                request.DecisionAction,
                request.DecisionTargetKey,
                request.DecisionCanonicalID
            },
            commandType: CommandType.StoredProcedure);
    }

    public async Task ResetBookAsync(int bookId)
    {
        using var connection = connectionFactory.CreateConnection();
        await connection.ExecuteAsync(
            "dbo.StoryIntelligenceReviewCandidate_ResetBook",
            new { BookID = bookId },
            commandType: CommandType.StoredProcedure);
    }
}