import * as v from "valibot";

// File Upload Configuration Schema
export const fileUploadConfigSchema = v.object({
    bucketName: v.string(),
    region: v.string(),
    endpoint: v.string(),
    accessKey: v.string(),
    secretKey: v.string(),
    publicUrl: v.optional(v.string()),
    maxFileSize: v.pipe(v.number(), v.integer()), // in bytes
    allowedMimeTypes: v.array(v.string()),
    allowedExtensions: v.array(v.string()),
});
export type FileUploadConfig = v.InferOutput<typeof fileUploadConfigSchema>;

// File Visibility Schema
export const fileVisibilitySchema = v.picklist([
    "public",
    "private",
    "restricted",
]);
export type FileVisibility = v.InferOutput<typeof fileVisibilitySchema>;

// File Metadata Schema
export const fileMetadataSchema = v.object({
    id: v.string(),
    filename: v.string(),
    originalName: v.string(),
    mimeType: v.string(),
    size: v.pipe(v.number(), v.integer()),
    hash: v.string(),
    bucketName: v.string(),
    objectKey: v.string(),
    r2Url: v.string(),
    visibility: fileVisibilitySchema,
    userId: v.string(),
    metadata: v.optional(v.record(v.string(), v.any())),
    tags: v.optional(v.array(v.string())),
    uploadedAt: v.date(),
    expiresAt: v.optional(v.date()),
});
export type FileMetadata = v.InferOutput<typeof fileMetadataSchema>;

// Upload Result Schema
export const uploadResultSchema = v.object({
    success: v.boolean(),
    file: v.optional(fileMetadataSchema),
    error: v.optional(v.string()),
    uploadId: v.optional(v.string()),
});
export type UploadResult = v.InferOutput<typeof uploadResultSchema>;

// Presigned URL Result Schema
export const presignedUrlResultSchema = v.object({
    uploadUrl: v.string(),
    downloadUrl: v.optional(v.string()),
    expiresIn: v.pipe(v.number(), v.integer()),
    fields: v.optional(v.record(v.string(), v.any())),
});
export type PresignedUrlResult = v.InferOutput<typeof presignedUrlResultSchema>;

// File Validation Result Schema
export const fileValidationResultSchema = v.object({
    isValid: v.boolean(),
    errors: v.array(v.string()),
    warnings: v.array(v.string()),
});
export type FileValidationResult = v.InferOutput<
    typeof fileValidationResultSchema
>;

// Image Resize Options Schema
export const imageResizeOptionsSchema = v.object({
    width: v.optional(v.pipe(v.number(), v.integer())),
    height: v.optional(v.pipe(v.number(), v.integer())),
    fit: v.optional(
        v.picklist(["cover", "contain", "fill", "inside", "outside"]),
    ),
});
export type ImageResizeOptions = v.InferOutput<typeof imageResizeOptionsSchema>;

// Thumbnail Size Schema
export const thumbnailSizeSchema = v.object({
    width: v.pipe(v.number(), v.integer()),
    height: v.pipe(v.number(), v.integer()),
});
export type ThumbnailSize = v.InferOutput<typeof thumbnailSizeSchema>;

// Image Processing Options Schema
export const imageProcessingOptionsSchema = v.object({
    resize: v.optional(imageResizeOptionsSchema),
    format: v.optional(v.picklist(["jpeg", "png", "webp", "avif"])),
    quality: v.optional(v.pipe(v.number(), v.integer())),
    generateThumbnail: v.optional(v.boolean()),
    thumbnailSize: v.optional(thumbnailSizeSchema),
});
export type ImageProcessingOptions = v.InferOutput<
    typeof imageProcessingOptionsSchema
>;

// File Processing Result Schema
export const fileProcessingResultSchema = v.object({
    processed: v.boolean(),
    originalFile: v.optional(v.instance(Uint8Array)), // Buffer equivalent
    processedFile: v.optional(v.instance(Uint8Array)), // Buffer equivalent
    thumbnail: v.optional(v.instance(Uint8Array)), // Buffer equivalent
    metadata: v.optional(v.record(v.string(), v.any())),
    error: v.optional(v.string()),
});
export type FileProcessingResult = v.InferOutput<
    typeof fileProcessingResultSchema
>;

// File Security Result Schema (from utils.ts)
export const fileSecurityResultSchema = v.object({
    isSecure: v.boolean(),
    issues: v.array(v.string()),
    warnings: v.array(v.string()),
});
export type FileSecurityResult = v.InferOutput<typeof fileSecurityResultSchema>;

// Document Processing Options Schema
export const documentProcessingOptionsSchema = v.object({
    extractText: v.optional(v.boolean()),
    generatePreview: v.optional(v.boolean()),
    extractMetadata: v.optional(v.boolean()),
    validateStructure: v.optional(v.boolean()),
});
export type DocumentProcessingOptions = v.InferOutput<
    typeof documentProcessingOptionsSchema
>;

// Video Processing Options Schema
export const videoProcessingOptionsSchema = v.object({
    generateThumbnail: v.optional(v.boolean()),
    extractMetadata: v.optional(v.boolean()),
    thumbnailTimestamp: v.optional(v.number()), // Seconds into video for thumbnail
    thumbnailSize: v.optional(thumbnailSizeSchema),
});
export type VideoProcessingOptions = v.InferOutput<
    typeof videoProcessingOptionsSchema
>;

// Upload Options Schema (used in client.ts)
export const uploadOptionsSchema = v.object({
    visibility: v.optional(fileVisibilitySchema),
    metadata: v.optional(v.record(v.string(), v.any())),
    tags: v.optional(v.array(v.string())),
    processImage: v.optional(v.boolean()),
    processDocument: v.optional(v.boolean()),
    processVideo: v.optional(v.boolean()),
});
export type UploadOptions = v.InferOutput<typeof uploadOptionsSchema>;