using System.ComponentModel.DataAnnotations;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Rendering;
using PlotLine.Models;

namespace PlotLine.ViewModels;

public sealed class ProjectEditViewModel
{
    public int ProjectID { get; set; }

    [Required, StringLength(200)]
    [Display(Name = "Project / Series name")]
    public string ProjectName { get; set; } = string.Empty;

    public string? Description { get; set; }
}

public sealed class ProjectDetailViewModel
{
    public Project Project { get; set; } = new();
    public IReadOnlyList<Book> Books { get; set; } = [];
}

public sealed class BookEditViewModel
{
    public int BookID { get; set; }
    public int ProjectID { get; set; }

    [Required, StringLength(200)]
    [Display(Name = "Book title")]
    public string BookTitle { get; set; } = string.Empty;

    [Display(Name = "Book number")]
    public int BookNumber { get; set; } = 1;

    public string? Description { get; set; }
    public Project? Project { get; set; }
}

public sealed class BookDetailViewModel
{
    public Project Project { get; set; } = new();
    public Book Book { get; set; } = new();
    public IReadOnlyList<Chapter> Chapters { get; set; } = [];
}

public sealed class ChapterEditViewModel
{
    public int ChapterID { get; set; }
    public int BookID { get; set; }

    [Display(Name = "Chapter number")]
    public decimal ChapterNumber { get; set; } = 1;

    [Required, StringLength(200)]
    [Display(Name = "Chapter title")]
    public string ChapterTitle { get; set; } = string.Empty;

    public string? Summary { get; set; }

    [Display(Name = "Revision status")]
    public int RevisionStatusID { get; set; }

    public Book? Book { get; set; }
    public Project? Project { get; set; }
    public IReadOnlyList<SelectListItem> RevisionStatuses { get; set; } = [];
}

public sealed class ChapterDetailViewModel
{
    public Project Project { get; set; } = new();
    public Book Book { get; set; } = new();
    public Chapter Chapter { get; set; } = new();
    public IReadOnlyList<Scene> Scenes { get; set; } = [];
}

public sealed class SceneEditViewModel
{
    public int SceneID { get; set; }
    public int ChapterID { get; set; }

    [Display(Name = "Scene number")]
    public decimal SceneNumber { get; set; } = 1;

    [Required, StringLength(200)]
    [Display(Name = "Scene title")]
    public string SceneTitle { get; set; } = string.Empty;

    public string? Summary { get; set; }

    [Display(Name = "Time mode")]
    public int TimeModeID { get; set; }

    [Display(Name = "Start date/time")]
    public DateTime? StartDateTime { get; set; }

    [Display(Name = "End date/time")]
    public DateTime? EndDateTime { get; set; }

    [Display(Name = "Duration")]
    public decimal? DurationAmount { get; set; }

    [Display(Name = "Duration unit")]
    public int? DurationUnitID { get; set; }

    [Display(Name = "Relative time")]
    public string? RelativeTimeText { get; set; }

    [Display(Name = "Time confidence")]
    public int TimeConfidenceID { get; set; }

    [Display(Name = "Purpose notes")]
    public string? ScenePurposeNotes { get; set; }

    [Display(Name = "Outcome notes")]
    public string? SceneOutcomeNotes { get; set; }

    [Display(Name = "Revision status")]
    public int RevisionStatusID { get; set; }

    [Display(Name = "Primary location")]
    public int? PrimaryLocationID { get; set; }

    [Display(Name = "Scene purposes")]
    public List<int> SelectedPurposeTypeIds { get; set; } = [];

    public List<SceneMetricInputViewModel> Metrics { get; set; } = [];
    public IReadOnlyList<ThreadEvent> ThreadEvents { get; set; } = [];
    public ThreadEventCreateViewModel NewThreadEvent { get; set; } = new();
    public IReadOnlyList<AssetEvent> AssetEvents { get; set; } = [];
    public IReadOnlyList<AssetCustodyEvent> AssetCustodyEvents { get; set; } = [];
    public IReadOnlyList<SceneAssetLocation> SceneAssetLocations { get; set; } = [];
    public AssetEventCreateViewModel NewAssetEvent { get; set; } = new();
    public AssetCustodyCreateViewModel NewAssetCustodyEvent { get; set; } = new();
    public SceneAssetLocationCreateViewModel NewSceneAssetLocation { get; set; } = new();
    public IReadOnlyList<SceneCharacter> SceneCharacters { get; set; } = [];
    public IReadOnlyList<CharacterAttributeEvent> CharacterAttributeEvents { get; set; } = [];
    public IReadOnlyList<CharacterKnowledgeItem> CharacterKnowledge { get; set; } = [];
    public IReadOnlyList<RelationshipEvent> RelationshipEvents { get; set; } = [];
    public SceneCharacterCreateViewModel NewSceneCharacter { get; set; } = new();
    public CharacterAttributeEventCreateViewModel NewCharacterAttributeEvent { get; set; } = new();
    public CharacterKnowledgeCreateViewModel NewCharacterKnowledge { get; set; } = new();
    public RelationshipEventCreateViewModel NewRelationshipEvent { get; set; } = new();
    public IReadOnlyList<SelectListItem> PlotLineOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> PlotThreadOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ThreadTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ThreadEventTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetKindOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetStateOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetEventTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetCustodyEventTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> CustodyRoleOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> CharacterOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> CharacterRoleOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> PresenceTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> CharacterAttributeTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> KnowledgeStateOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> RelationshipOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> RelationshipTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> RelationshipStateOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> LocationOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> SceneOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ChapterOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> SceneDependencyTypeOptions { get; set; } = [];
    public IReadOnlyList<string> AssetDependencyMessages { get; set; } = [];
    public IReadOnlyList<string> LocationConsistencyMessages { get; set; } = [];
    public IReadOnlyList<ContinuityWarning> Warnings { get; set; } = [];
    public IReadOnlyList<SceneDependency> DependenciesThisSceneNeeds { get; set; } = [];
    public IReadOnlyList<SceneDependency> DependenciesNeedingThisScene { get; set; } = [];
    public SceneDependencyCreateViewModel NewDependency { get; set; } = new();
    public SceneMoveRequestViewModel MoveRequest { get; set; } = new();
    public SceneWorkflow Workflow { get; set; } = new();
    public IReadOnlyList<SceneNote> Notes { get; set; } = [];
    public IReadOnlyList<SceneChecklistItem> ChecklistItems { get; set; } = [];
    public IReadOnlyList<SceneAttachment> Attachments { get; set; } = [];
    public SceneNoteEditViewModel NewNote { get; set; } = new();
    public SceneChecklistItemEditViewModel NewChecklistItem { get; set; } = new();
    public SceneAttachmentEditViewModel NewAttachment { get; set; } = new();
    public IReadOnlyList<SelectListItem> SceneNoteTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> SceneAttachmentTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> DraftStatusOptions { get; set; } = [];

    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
    public bool ReturnToTimeline { get; set; }

    public Chapter? Chapter { get; set; }
    public Book? Book { get; set; }
    public Project? Project { get; set; }
    public IReadOnlyList<SelectListItem> RevisionStatuses { get; set; } = [];
    public IReadOnlyList<SelectListItem> TimeModes { get; set; } = [];
    public IReadOnlyList<SelectListItem> DurationUnits { get; set; } = [];
    public IReadOnlyList<SelectListItem> TimeConfidences { get; set; } = [];
    public IReadOnlyList<ScenePurposeType> ScenePurposeTypes { get; set; } = [];
}

public sealed class SceneWorkflowEditViewModel
{
    public int SceneID { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
    public string DraftStatus { get; set; } = "Planned";
    public int? EstimatedWordCount { get; set; }
    public int? ActualWordCount { get; set; }
    public DateTime? DraftedDate { get; set; }
    public DateTime? LastWorkedOn { get; set; }
    public bool ReadyForDraft { get; set; }
    public bool ReadyForRevision { get; set; }
    public bool ReadyForPolish { get; set; }
    public bool IsBlocked { get; set; }
    public string? BlockedReason { get; set; }
    public int? Priority { get; set; }
}

public sealed class SceneNoteEditViewModel
{
    public int SceneNoteID { get; set; }
    public int SceneID { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
    public int SceneNoteTypeID { get; set; }
    public string? NoteTitle { get; set; }
    public string NoteText { get; set; } = string.Empty;
    public int? SortOrder { get; set; }
    public bool IsPinned { get; set; }
    public bool IsResolved { get; set; }
}

public sealed class SceneChecklistItemEditViewModel
{
    public int SceneChecklistItemID { get; set; }
    public int SceneID { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
    public string ItemText { get; set; } = string.Empty;
    public bool IsCompleted { get; set; }
    public int? SortOrder { get; set; }
}

public sealed class SceneAttachmentEditViewModel
{
    public int SceneAttachmentID { get; set; }
    public int SceneID { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
    public int SceneAttachmentTypeID { get; set; }
    public string Title { get; set; } = string.Empty;
    public string? FilePath { get; set; }
    public string? ExternalUrl { get; set; }
    public string? Notes { get; set; }
    public IFormFile? UploadedFile { get; set; }
}

public sealed class ChapterGoalEditViewModel
{
    public int ChapterGoalID { get; set; }
    public int ChapterID { get; set; }
    public string? GoalSummary { get; set; }
    public string? EmotionalGoal { get; set; }
    public string? ReaderTakeaway { get; set; }
    public string? MustInclude { get; set; }
    public string? RisksOrConcerns { get; set; }
}

public sealed class ChapterWorkflowViewModel
{
    public Project Project { get; set; } = new();
    public Book Book { get; set; } = new();
    public Chapter Chapter { get; set; } = new();
    public ChapterGoal Goal { get; set; } = new();
    public IReadOnlyList<ChapterWorkflowScene> Scenes { get; set; } = [];
}

public sealed class WriterDashboardViewModel
{
    public int? ProjectID { get; set; }
    public IReadOnlyList<SelectListItem> ProjectOptions { get; set; } = [];
    public IReadOnlyList<WriterDashboardScene> ContinueWriting { get; set; } = [];
    public IReadOnlyList<WriterDashboardScene> NeedsAttention { get; set; } = [];
    public IReadOnlyList<WriterDashboardScene> RevisionQueue { get; set; } = [];
    public IReadOnlyList<WriterDashboardScene> PolishingQueue { get; set; } = [];
    public IReadOnlyList<StoryBibleAttentionItem> StoryHealthReminders { get; set; } = [];
}

public sealed class CharacterArcViewModel
{
    public Project Project { get; set; } = new();
    public Character Character { get; set; } = new();
    public IReadOnlyList<CharacterArcPoint> ArcPoints { get; set; } = [];
    public IReadOnlyList<RelationshipEvent> RelationshipEvents { get; set; } = [];
    public IReadOnlyList<CharacterKnowledgeItem> KnowledgeEvents { get; set; } = [];
    public IReadOnlyList<DynamicsIssue> Issues { get; set; } = [];
}

public sealed class RelationshipEvolutionViewModel
{
    public Project Project { get; set; } = new();
    public CharacterRelationship Relationship { get; set; } = new();
    public IReadOnlyList<RelationshipProgressionPoint> Events { get; set; } = [];
    public IReadOnlyList<DynamicsIssue> Issues { get; set; } = [];
}

public sealed class KnowledgeTimelineViewModel
{
    public Project Project { get; set; } = new();
    public Character Character { get; set; } = new();
    public IReadOnlyList<CharacterKnowledgeItem> KnowledgeEvents { get; set; } = [];
    public IReadOnlyList<DynamicsIssue> Issues { get; set; } = [];
}

public sealed class StoryDynamicsViewModel
{
    public Project Project { get; set; } = new();
    public IReadOnlyList<CharacterPairingSummary> Pairings { get; set; } = [];
    public IReadOnlyList<DynamicsIssue> Issues { get; set; } = [];
}

public sealed class ScenarioListViewModel
{
    public Project Project { get; set; } = new();
    public IReadOnlyList<Scenario> Scenarios { get; set; } = [];
}

public sealed class ScenarioCreateViewModel
{
    public int ProjectID { get; set; }
    public int? BookID { get; set; }
    public string ScenarioName { get; set; } = string.Empty;
    public string? Description { get; set; }
    public IReadOnlyList<SelectListItem> BookOptions { get; set; } = [];
}

public sealed class ScenarioTimelineViewModel
{
    public Project Project { get; set; } = new();
    public Scenario Scenario { get; set; } = new();
    public IReadOnlyList<Book> Books { get; set; } = [];
    public IReadOnlyList<Chapter> Chapters { get; set; } = [];
    public IReadOnlyList<ScenarioScene> Scenes { get; set; } = [];
    public IReadOnlyList<ScenarioWarning> Warnings { get; set; } = [];
    public IReadOnlyList<SelectListItem> ChapterOptions { get; set; } = [];
}

public sealed class ScenarioCompareViewModel
{
    public Project Project { get; set; } = new();
    public Scenario Scenario { get; set; } = new();
    public IReadOnlyList<ScenarioComparisonRow> MovedScenes { get; set; } = [];
    public IReadOnlyList<ScenarioWarning> ScenarioWarnings { get; set; } = [];
}

public sealed class ArchivedItemsViewModel
{
    public int? ProjectID { get; set; }
    public string? EntityType { get; set; }
    public IReadOnlyList<SelectListItem> ProjectOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> EntityTypeOptions { get; set; } = [];
    public IReadOnlyList<ArchivedItem> Items { get; set; } = [];
}

public sealed class Phase1AcceptanceViewModel
{
    public int? ProjectID { get; set; }
    public string? ProjectName { get; set; }
    public IReadOnlyList<SelectListItem> ProjectOptions { get; set; } = [];
    public IReadOnlyList<Phase1AcceptanceChecklistItem> Items { get; set; } = [];
    public int PassCount => Items.Count(x => x.Status == "Pass");
    public int ReviewCount => Items.Count(x => x.Status == "Review");
    public int BlockedCount => Items.Count(x => x.Status == "Blocked");
}

public sealed class TimelineViewModel
{
    public Project Project { get; set; } = new();
    public ProjectTimelineSettings Settings { get; set; } = new();
    public int? SelectedBookID { get; set; }
    public int? SelectedSceneID { get; set; }
    public SceneEditViewModel? SelectedScene { get; set; }
    public TimelineFilterViewModel Filter { get; set; } = new();
    public IReadOnlyList<BookTimelineViewModel> Books { get; set; } = [];
    public IReadOnlyList<SelectListItem> BookOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ChapterOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ChapterFromOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ChapterToOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> SceneOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> SceneFromOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> SceneToOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> PlotLineOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> PlotThreadOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetOptions { get; set; } = [];
    public IReadOnlyList<StoryAsset> QuickAddAssets { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetEventTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetStateOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetDependencyTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> CharacterOptions { get; set; } = [];
    public IReadOnlyList<Character> QuickAddCharacters { get; set; } = [];
    public IReadOnlyList<SelectListItem> CharacterRoleOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> PresenceTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> PovCharacterOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> LocationOptions { get; set; } = [];
    public IReadOnlyList<LocationItem> QuickAddLocations { get; set; } = [];
    public IReadOnlyList<SelectListItem> LocationRelationshipTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> WarningSeverityOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> WarningTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> RevisionStatusOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ScenePurposeOptions { get; set; } = [];
    public IReadOnlyList<TimelineViewPreset> ViewPresets { get; set; } = [];
    public IReadOnlyList<Scene> OrderedScenes { get; set; } = [];
    public IReadOnlyList<MetricGraphViewModel> MetricGraphs { get; set; } = [];
    public IReadOnlyList<PlotLineLaneViewModel> PlotLanes { get; set; } = [];
    public IReadOnlyList<AssetLaneViewModel> AssetLanes { get; set; } = [];
    public IReadOnlyList<CharacterLaneViewModel> CharacterLanes { get; set; } = [];
    public IReadOnlySet<int> MatchingSceneIDs { get; set; } = new HashSet<int>();
    public IReadOnlySet<int> FocusSceneIDs { get; set; } = new HashSet<int>();
    public IReadOnlyDictionary<int, string> ScenePovLabels { get; set; } = new Dictionary<int, string>();
    public string? FocusLabel { get; set; }
    public ContinuityValidationSummary? LastValidationSummary { get; set; }
}

public sealed class TimelineSettingsViewModel
{
    public int ProjectID { get; set; }
    public string ProjectName { get; set; } = string.Empty;
    public bool ShowSceneCards { get; set; } = true;
    public bool ShowMetricShape { get; set; } = true;
    public bool ShowPlotLines { get; set; } = true;
    public bool ShowStoryAssets { get; set; } = true;
    public bool ShowCharacterAppearances { get; set; } = true;
    public bool ShowWarnings { get; set; } = true;
    public List<int> SelectedMetricTypeIDs { get; set; } = [];
    public IReadOnlyList<TimelineMetricSettingOptionViewModel> MetricOptions { get; set; } = [];
}

public sealed class TimelineMetricSettingOptionViewModel
{
    public int MetricTypeID { get; set; }
    public string MetricName { get; set; } = string.Empty;
    public string? Description { get; set; }
    public int SortOrder { get; set; }
    public bool IsSelected { get; set; }
}

public sealed class StoryBibleViewModel
{
    public Project Project { get; set; } = new();
    public string? Query { get; set; }
    public IReadOnlyList<StoryBibleCharacterSummary> Characters { get; set; } = [];
    public IReadOnlyList<StoryBibleThreadSummary> PlotThreads { get; set; } = [];
    public IReadOnlyList<StoryBibleAssetSummary> Assets { get; set; } = [];
    public IReadOnlyList<StoryBibleRelationshipSummary> Relationships { get; set; } = [];
    public IReadOnlyList<StoryBibleLocationSummary> Locations { get; set; } = [];
    public IReadOnlyList<StoryBibleTimelineSummary> Timeline { get; set; } = [];
    public IReadOnlyList<StoryBibleAttentionItem> OpenQuestions { get; set; } = [];
    public IReadOnlyList<StoryBibleRevisionItem> RevisionItems { get; set; } = [];
    public IReadOnlyList<StoryBibleSearchResult> SearchResults { get; set; } = [];
}

public sealed class TimelineFilterViewModel
{
    public int ProjectID { get; set; }
    public int? BookID { get; set; }
    public int? SelectedSceneID { get; set; }
    public int? ChapterFromID { get; set; }
    public int? ChapterToID { get; set; }
    public int? SceneFromID { get; set; }
    public int? SceneToID { get; set; }
    public int? PlotLineID { get; set; }
    public int? PlotThreadID { get; set; }
    public int? StoryAssetID { get; set; }
    public int? CharacterID { get; set; }
    public int? LocationID { get; set; }
    public int? WarningSeverityID { get; set; }
    public int? WarningTypeID { get; set; }
    public int? RevisionStatusID { get; set; }
    public int? ScenePurposeTypeID { get; set; }
    public int? POVCharacterID { get; set; }
    public string? FocusType { get; set; }
    public int? FocusID { get; set; }
    public bool ShowSceneCards { get; set; } = true;
    public bool ShowPlotLines { get; set; } = true;
    public bool ShowAssets { get; set; } = true;
    public bool ShowCharacters { get; set; } = true;
    public bool ShowLocations { get; set; } = true;
    public bool ShowWarnings { get; set; } = true;
    public bool ShowMetrics { get; set; } = true;
    public bool ShowWarningsOnly { get; set; }
    public bool IncludeDismissedWarnings { get; set; }
    public bool IncludeIntentionalWarnings { get; set; }
}

public sealed class TimelinePresetSaveViewModel
{
    public int ProjectID { get; set; }
    public int? BookID { get; set; }
    public string PresetName { get; set; } = string.Empty;
    public TimelineFilterViewModel Filter { get; set; } = new();
    public string VisibilityJson { get; set; } = "{}";
}

public sealed class TimelineSceneDropMoveViewModel
{
    public int ProjectID { get; set; }
    public int? BookID { get; set; }
    public int SceneID { get; set; }
    public int AnchorSceneID { get; set; }
    public int? TargetChapterID { get; set; }
    public string Position { get; set; } = "After";
    public int? ReturnSelectedSceneID { get; set; }
}

public sealed class TimelineSceneCharacterDropViewModel
{
    public int SceneID { get; set; }
    public int? CharacterID { get; set; }
    public int? RoleInSceneTypeID { get; set; }
    public int? PresenceTypeID { get; set; }
    public int? LocationID { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class TimelineAssetEventDropViewModel
{
    public int SceneID { get; set; }
    public int? StoryAssetID { get; set; }
    public int AssetEventTypeID { get; set; }
    public int? FromStateID { get; set; }
    public int? ToStateID { get; set; }
    public string EventTitle { get; set; } = string.Empty;
    public string? EventDescription { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
    public int? LocationID { get; set; }
    public string? CustodyNote { get; set; }
}

public sealed class TimelineAssetDependencyDropViewModel
{
    public int ProjectID { get; set; }
    public int SourceAssetID { get; set; }
    public int TargetAssetID { get; set; }
    public int AssetDependencyTypeID { get; set; }
    public int? SourceRequiredStateID { get; set; }
    public int? TargetBlockedStateID { get; set; }
    public string? Description { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class TimelineLocationRelationshipDropViewModel
{
    public int ProjectID { get; set; }
    public int FromLocationID { get; set; }
    public int ToLocationID { get; set; }
    public int LocationRelationshipTypeID { get; set; }
    public bool IsBidirectional { get; set; }
    public int? Strength { get; set; }
    public bool CanHearNormalSpeech { get; set; }
    public bool CanHearLoudNoise { get; set; }
    public bool CanSeeMovement { get; set; }
    public bool CanSeeClearly { get; set; }
    public bool CanTravelDirectly { get; set; }
    public string? Notes { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class BookTimelineViewModel
{
    public Book Book { get; set; } = new();
    public IReadOnlyList<ChapterTimelineViewModel> Chapters { get; set; } = [];
}

public sealed class ChapterTimelineViewModel
{
    public Chapter Chapter { get; set; } = new();
    public IReadOnlyList<Scene> Scenes { get; set; } = [];
}

public sealed class SceneMetricInputViewModel
{
    public int MetricTypeID { get; set; }
    public string MetricName { get; set; } = string.Empty;
    public string? Description { get; set; }
    public int MinValue { get; set; }
    public int MaxValue { get; set; }
    public int Value { get; set; }
    public string? Notes { get; set; }
}

public sealed class MetricGraphViewModel
{
    public int MetricTypeID { get; set; }
    public string MetricName { get; set; } = string.Empty;
    public IReadOnlyList<MetricGraphPointViewModel> Points { get; set; } = [];
}

public sealed class MetricGraphPointViewModel
{
    public int SceneID { get; set; }
    public decimal SceneNumber { get; set; }
    public string SceneTitle { get; set; } = string.Empty;
    public int Value { get; set; }
    public int Percent { get; set; }
}

public sealed class PlotLineEditViewModel
{
    public int PlotLineID { get; set; }
    public int ProjectID { get; set; }

    [Required, StringLength(200)]
    [Display(Name = "Plot line name")]
    public string PlotLineName { get; set; } = string.Empty;

    [Display(Name = "Type")]
    public int PlotLineTypeID { get; set; }

    public int? BookID { get; set; }
    public string? Description { get; set; }

    [Display(Name = "Parent plot line")]
    public int? ParentPlotLineID { get; set; }

    [Display(Name = "Sort order")]
    public int SortOrder { get; set; }

    [Display(Name = "Colour")]
    public string Colour { get; set; } = "#2f6f63";

    [Display(Name = "Main plot")]
    public bool IsMainPlot { get; set; }

    [Display(Name = "Visible on timeline")]
    public bool IsVisibleOnTimeline { get; set; } = true;

    public Project? Project { get; set; }
    public IReadOnlyList<SelectListItem> PlotLineTypes { get; set; } = [];
    public IReadOnlyList<SelectListItem> BookOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ParentPlotLineOptions { get; set; } = [];
}

public sealed class PlotLineListViewModel
{
    public Project Project { get; set; } = new();
    public IReadOnlyList<PlotLineItem> PlotLines { get; set; } = [];
}

public sealed class PlotThreadEditViewModel
{
    public int PlotThreadID { get; set; }
    public int ProjectID { get; set; }

    [Display(Name = "Plot line")]
    public int PlotLineID { get; set; }

    [Required, StringLength(200)]
    [Display(Name = "Thread title")]
    public string ThreadTitle { get; set; } = string.Empty;

    [Display(Name = "Type")]
    public int ThreadTypeID { get; set; }

    [Display(Name = "Status")]
    public int ThreadStatusID { get; set; }

    [Range(1, 10)]
    public int Importance { get; set; } = 5;

    public string? Summary { get; set; }

    [Display(Name = "Introduced scene")]
    public int? IntroducedSceneID { get; set; }

    [Display(Name = "Planned resolution scene")]
    public int? PlannedResolutionSceneID { get; set; }

    [Display(Name = "Actual resolution scene")]
    public int? ActualResolutionSceneID { get; set; }

    public Project? Project { get; set; }
    public IReadOnlyList<SelectListItem> PlotLineOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ThreadTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> ThreadStatusOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> SceneOptions { get; set; } = [];
}

public sealed class PlotThreadListViewModel
{
    public Project Project { get; set; } = new();
    public IReadOnlyList<PlotThread> PlotThreads { get; set; } = [];
}

public sealed class ThreadEventCreateViewModel
{
    public int SceneID { get; set; }
    public int? PlotLineID { get; set; }
    public int? PlotThreadID { get; set; }
    public string? NewThreadTitle { get; set; }
    public int? NewThreadTypeID { get; set; }
    public int EventTypeID { get; set; }
    public string EventTitle { get; set; } = string.Empty;
    public string? EventDescription { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class PlotLineLaneViewModel
{
    public PlotLineItem PlotLine { get; set; } = new();
    public IReadOnlyList<PlotLaneSceneViewModel> SceneSlots { get; set; } = [];
}

public sealed class PlotLaneSceneViewModel
{
    public Scene Scene { get; set; } = new();
    public IReadOnlyList<ThreadEvent> Events { get; set; } = [];
}

public sealed class StoryAssetListViewModel
{
    public Project Project { get; set; } = new();
    public IReadOnlyList<StoryAsset> Assets { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetDependencyTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetStateOptions { get; set; } = [];
}

public sealed class StoryAssetEditViewModel
{
    public int StoryAssetID { get; set; }
    public int ProjectID { get; set; }

    [Required, StringLength(200)]
    [Display(Name = "Asset name")]
    public string AssetName { get; set; } = string.Empty;

    [Display(Name = "Kind")]
    public int AssetKindID { get; set; }

    public string? Description { get; set; }

    [Range(1, 10)]
    public int Importance { get; set; } = 5;

    [Display(Name = "Current state")]
    public int? CurrentStateID { get; set; }

    [Display(Name = "Current location")]
    public int? CurrentLocationID { get; set; }

    [Display(Name = "Resolved")]
    public bool IsResolved { get; set; }

    [Display(Name = "Show in Quick Add Bar")]
    public bool ShowInQuickAddBar { get; set; }

    public Project? Project { get; set; }
    public IReadOnlyList<SelectListItem> AssetKindOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetStateOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> LocationOptions { get; set; } = [];
}

public sealed class StoryAssetDetailViewModel
{
    public Project Project { get; set; } = new();
    public StoryAsset Asset { get; set; } = new();
    public IReadOnlyList<StoryAsset> ProjectAssets { get; set; } = [];
    public IReadOnlyList<AssetEvent> Events { get; set; } = [];
    public IReadOnlyList<AssetDependency> Dependencies { get; set; } = [];
    public IReadOnlyList<AssetCustodyEvent> CustodyEvents { get; set; } = [];
    public AssetDependencyEditViewModel NewDependency { get; set; } = new();
    public IReadOnlyList<SelectListItem> AssetOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetDependencyTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> AssetStateOptions { get; set; } = [];
}

public sealed class AssetEventCreateViewModel
{
    public int SceneID { get; set; }
    public int? StoryAssetID { get; set; }
    public string? NewAssetName { get; set; }
    public int? NewAssetKindID { get; set; }
    public int AssetEventTypeID { get; set; }
    public int? FromStateID { get; set; }
    public int? ToStateID { get; set; }
    public string EventTitle { get; set; } = string.Empty;
    public string? EventDescription { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class AssetCustodyCreateViewModel
{
    public int SceneID { get; set; }
    public int StoryAssetID { get; set; }
    public int AssetCustodyEventTypeID { get; set; }
    public int CustodyRoleID { get; set; }
    public List<int> CustodianCharacterIds { get; set; } = [];
    public string CustodianNames { get; set; } = string.Empty;
    public string? Description { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class SceneAssetLocationCreateViewModel
{
    public int SceneAssetLocationID { get; set; }
    public int SceneID { get; set; }
    public int StoryAssetID { get; set; }
    public int LocationID { get; set; }
    public string? Description { get; set; }
    public bool UpdateCurrentLocation { get; set; } = true;
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class AssetDependencyEditViewModel
{
    public int AssetDependencyID { get; set; }
    public int ProjectID { get; set; }
    public int SourceAssetID { get; set; }
    public int TargetAssetID { get; set; }
    public int AssetDependencyTypeID { get; set; }
    public int? SourceRequiredStateID { get; set; }
    public int? TargetBlockedStateID { get; set; }
    public string? Description { get; set; }
}

public sealed class AssetLaneViewModel
{
    public StoryAsset Asset { get; set; } = new();
    public IReadOnlyList<AssetLaneSceneViewModel> SceneSlots { get; set; } = [];
}

public sealed class AssetLaneSceneViewModel
{
    public Scene Scene { get; set; } = new();
    public IReadOnlyList<AssetEvent> Events { get; set; } = [];
}

public sealed class CharacterListViewModel
{
    public Project Project { get; set; } = new();
    public IReadOnlyList<Character> Characters { get; set; } = [];
}

public sealed class CharacterEditViewModel
{
    public int CharacterID { get; set; }
    public int ProjectID { get; set; }

    [Required, StringLength(200)]
    [Display(Name = "Character name")]
    public string CharacterName { get; set; } = string.Empty;

    [Display(Name = "Short name")]
    public string? ShortName { get; set; }

    public string? Sex { get; set; }

    [Display(Name = "Birth date")]
    public DateTime? BirthDate { get; set; }

    [Display(Name = "Age at series start")]
    public int? AgeAtSeriesStart { get; set; }

    public string? Height { get; set; }

    [Display(Name = "Eye colour")]
    public string? EyeColour { get; set; }

    [Display(Name = "Story importance")]
    public int? CharacterImportance { get; set; }

    [Display(Name = "Show in Quick Add Bar")]
    public bool ShowInQuickAddBar { get; set; }

    [Display(Name = "Default description")]
    public string? DefaultDescription { get; set; }

    public IReadOnlyList<SelectListItem> ImportanceOptions { get; set; } =
    [
        new("Use timeline fallback", string.Empty),
        new("Major", "10"),
        new("Secondary / Supporting", "6"),
        new("Minor", "2")
    ];

    public Project? Project { get; set; }
}

public sealed class CharacterDetailViewModel
{
    public Project Project { get; set; } = new();
    public Character Character { get; set; } = new();
    public string DisplayAge { get; set; } = "Unknown";
    public IReadOnlyList<SceneCharacter> Appearances { get; set; } = [];
    public IReadOnlyList<CharacterAttributeEvent> AttributeEvents { get; set; } = [];
    public IReadOnlyList<CharacterKnowledgeItem> KnowledgeItems { get; set; } = [];
    public IReadOnlyList<CharacterRelationship> Relationships { get; set; } = [];
    public IReadOnlyList<RelationshipEvent> RelationshipEvents { get; set; } = [];
}

public sealed class SceneCharacterCreateViewModel
{
    public int SceneID { get; set; }
    public int? CharacterID { get; set; }
    public string? NewCharacterName { get; set; }
    public int? RoleInSceneTypeID { get; set; }
    public int? PresenceTypeID { get; set; }
    public int? LocationID { get; set; }
    public int? EntryLocationID { get; set; }
    public int? ExitLocationID { get; set; }
    public string? AppearanceNotes { get; set; }
    public string? OutfitDescription { get; set; }
    public string? PhysicalCondition { get; set; }
    public string? EmotionalState { get; set; }
    public string? KnowledgeNotes { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class SceneCharacterEditViewModel
{
    public int SceneCharacterID { get; set; }
    public int SceneID { get; set; }
    public int CharacterID { get; set; }
    public int? RoleInSceneTypeID { get; set; }
    public int? PresenceTypeID { get; set; }
    public int? LocationID { get; set; }
    public int? EntryLocationID { get; set; }
    public int? ExitLocationID { get; set; }
    public string? AppearanceNotes { get; set; }
    public string? OutfitDescription { get; set; }
    public string? PhysicalCondition { get; set; }
    public string? EmotionalState { get; set; }
    public string? KnowledgeNotes { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class CharacterAttributeEventCreateViewModel
{
    public int SceneID { get; set; }
    public int CharacterID { get; set; }
    public int CharacterAttributeTypeID { get; set; }
    public string AttributeValue { get; set; } = string.Empty;
    public string? Description { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class CharacterKnowledgeCreateViewModel
{
    public int SceneID { get; set; }
    public int CharacterID { get; set; }
    public int? StoryAssetID { get; set; }
    public int? PlotThreadID { get; set; }
    public int KnowledgeStateID { get; set; }
    public string? Description { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class RelationshipEventCreateViewModel
{
    public int SceneID { get; set; }
    public int? CharacterRelationshipID { get; set; }
    public int? CharacterAID { get; set; }
    public int? CharacterBID { get; set; }
    public int? RelationshipTypeID { get; set; }
    public int RelationshipStateID { get; set; }
    public int? Intensity { get; set; }
    public bool IsKnownToOtherCharacter { get; set; }
    public string? Description { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class CharacterLaneViewModel
{
    public Character Character { get; set; } = new();
    public IReadOnlyList<CharacterLaneSceneViewModel> SceneSlots { get; set; } = [];
}

public sealed class CharacterLaneSceneViewModel
{
    public Scene Scene { get; set; } = new();
    public IReadOnlyList<SceneCharacter> Appearances { get; set; } = [];
}

public sealed class LocationListViewModel
{
    public Project Project { get; set; } = new();
    public IReadOnlyList<LocationItem> Locations { get; set; } = [];
    public IReadOnlyList<SelectListItem> RelationshipTypeOptions { get; set; } = [];
}

public sealed class LocationEditViewModel
{
    public int LocationID { get; set; }
    public int ProjectID { get; set; }
    public int? ParentLocationID { get; set; }

    [Required, StringLength(200)]
    [Display(Name = "Location name")]
    public string LocationName { get; set; } = string.Empty;

    [Display(Name = "Location type")]
    public int? LocationTypeID { get; set; }

    public string? Description { get; set; }
    [Display(Name = "Show in Quick Add Bar")]
    public bool ShowInQuickAddBar { get; set; }
    public Project? Project { get; set; }
    public IReadOnlyList<SelectListItem> ParentLocationOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> LocationTypeOptions { get; set; } = [];
}

public sealed class LocationDetailViewModel
{
    public Project Project { get; set; } = new();
    public LocationItem Location { get; set; } = new();
    public IReadOnlyList<LocationItem> ChildLocations { get; set; } = [];
    public IReadOnlyList<LocationRelationship> Relationships { get; set; } = [];
    public IReadOnlyList<Scene> Scenes { get; set; } = [];
    public IReadOnlyList<SceneCharacter> Characters { get; set; } = [];
    public IReadOnlyList<SceneAssetLocation> Assets { get; set; } = [];
    public LocationRelationshipEditViewModel NewRelationship { get; set; } = new();
    public IReadOnlyList<SelectListItem> LocationOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> RelationshipTypeOptions { get; set; } = [];
}

public sealed class LocationRelationshipEditViewModel
{
    public int LocationRelationshipID { get; set; }
    public int ProjectID { get; set; }
    public int FromLocationID { get; set; }
    public int ToLocationID { get; set; }
    public int LocationRelationshipTypeID { get; set; }
    public bool IsBidirectional { get; set; }
    public int? Strength { get; set; }
    public bool CanHearNormalSpeech { get; set; }
    public bool CanHearLoudNoise { get; set; }
    public bool CanSeeMovement { get; set; }
    public bool CanSeeClearly { get; set; }
    public bool CanTravelDirectly { get; set; }
    public string? Notes { get; set; }
}

public sealed class WarningDashboardViewModel
{
    public Project Project { get; set; } = new();
    public int? BookID { get; set; }
    public int? SceneID { get; set; }
    public int? WarningTypeID { get; set; }
    public int? WarningSeverityID { get; set; }
    public string? EntityType { get; set; }
    public bool IncludeDismissed { get; set; }
    public bool IncludeIntentional { get; set; }
    public IReadOnlyList<ContinuityWarning> Warnings { get; set; } = [];
    public IReadOnlyList<SelectListItem> BookOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> WarningTypeOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> SeverityOptions { get; set; } = [];
    public IReadOnlyList<SelectListItem> EntityTypeOptions { get; set; } = [];
    public IReadOnlyDictionary<string, int> CountsBySeverity { get; set; } = new Dictionary<string, int>();
    public IReadOnlyDictionary<string, int> CountsByType { get; set; } = new Dictionary<string, int>();
    public ContinuityValidationSummary? LastValidationSummary { get; set; }
}

public sealed class SceneDependencyCreateViewModel
{
    public int SceneDependencyID { get; set; }
    public int ProjectID { get; set; }
    public int CurrentSceneID { get; set; }
    public int RelatedSceneID { get; set; }
    public string Direction { get; set; } = "CurrentDependsOnRelated";
    public int SceneDependencyTypeID { get; set; }
    public bool IsHardDependency { get; set; }
    public string? Description { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class SceneMoveRequestViewModel
{
    public int SceneID { get; set; }
    public int TargetChapterID { get; set; }
    public string Position { get; set; } = "End";
    public bool RenumberScenes { get; set; }
    public int? ReturnProjectID { get; set; }
    public int? ReturnBookID { get; set; }
}

public sealed class SceneMovePreviewViewModel
{
    public SceneMovePreview Preview { get; set; } = new();
    public SceneMoveRequestViewModel Request { get; set; } = new();
    public IReadOnlyList<ContinuityWarning> CurrentWarnings { get; set; } = [];
}

public sealed class AnalyticsViewModel
{
    public Project Project { get; set; } = new();
    public int? BookID { get; set; }
    public decimal? StartChapterNumber { get; set; }
    public decimal? EndChapterNumber { get; set; }
    public decimal? StartSceneNumber { get; set; }
    public decimal? EndSceneNumber { get; set; }
    public IReadOnlyList<SelectListItem> BookOptions { get; set; } = [];
    public IReadOnlyList<AnalyticsMetricGraphViewModel> MetricGraphs { get; set; } = [];
    public IReadOnlyList<AnalyticsRevisionSummary> RevisionSummary { get; set; } = [];
    public IReadOnlyList<AnalyticsRevisionScene> RevisionAttentionScenes { get; set; } = [];
    public IReadOnlyList<AnalyticsPurposeSummary> PurposeSummary { get; set; } = [];
    public IReadOnlyList<AnalyticsSceneGap> SceneGaps { get; set; } = [];
    public IReadOnlyList<AnalyticsThreadHealth> ThreadHealth { get; set; } = [];
    public IReadOnlyList<AnalyticsAssetHealth> AssetHealth { get; set; } = [];
    public IReadOnlyList<AnalyticsWarningSeverityCount> WarningSeverityCounts { get; set; } = [];
    public IReadOnlyList<AnalyticsWarningTypeCount> WarningTypeCounts { get; set; } = [];
    public IReadOnlyList<AnalyticsWarningHotspot> WarningHotspots { get; set; } = [];
    public IReadOnlyList<AnalyticsPovSummary> PovSummary { get; set; } = [];
    public IReadOnlyList<AnalyticsMultiPovChapter> MultiPovChapters { get; set; } = [];
    public IReadOnlyList<AnalyticsCharacterAppearance> CharacterAppearances { get; set; } = [];
    public IReadOnlyList<AnalyticsBusyScene> BusyScenes { get; set; } = [];
    public IReadOnlyList<AnalyticsLocationUsage> LocationUsage { get; set; } = [];
    public IReadOnlyList<AnalyticsReviewNote> PacingReviewNotes { get; set; } = [];
}

public sealed class AnalyticsMetricGraphViewModel
{
    public string MetricName { get; set; } = string.Empty;
    public IReadOnlyList<AnalyticsMetricPoint> Points { get; set; } = [];
}

public sealed class AnalyticsReviewNote
{
    public string MetricName { get; set; } = string.Empty;
    public string SceneRange { get; set; } = string.Empty;
    public string ValuePattern { get; set; } = string.Empty;
    public string ReviewNote { get; set; } = string.Empty;
    public int? SceneID { get; set; }
}