package components

import (
	"context"
	"strconv"
	"fmt"
	"github.com/starfleetcptn/gomft/internal/db"
)

// FileMetadataFilter represents filter parameters for file metadata queries
type FileMetadataFilter struct {
	Status    string
	JobID     string
	FileName  string
	Hash      string
	StartDate string
	EndDate   string
}

// FileMetadataListData contains data for the file metadata list template
type FileMetadataListData struct {
	Files      []db.FileMetadata
	TotalCount int64
	Page       int
	Limit      int
	TotalPages int
	Job        *db.Job // Optional: if viewing files for a specific job
	Filter     FileMetadataFilter
}

// FileMetadataDetailsData contains data for the file metadata details template
type FileMetadataDetailsData struct {
	File db.FileMetadata
}

// FileMetadataSearchData contains data for the file metadata search template
type FileMetadataSearchData struct {
	Files      []db.FileMetadata
	TotalCount int64
	Page       int
	Limit      int
	TotalPages int
	Filter     FileMetadataFilter
}

// getStatusBadgeClass returns the appropriate CSS class for a file status badge
func getStatusBadgeClass(status string) string {
	switch status {
	case "processed":
		return "badge-success"
	case "archived":
		return "badge-info"
	case "deleted":
		return "badge-warning"
	case "archived_and_deleted":
		return "badge-warning"
	case "error":
		return "badge-danger"
	default:
		return "badge-secondary"
	}
}

// formatFileSize formats a file size in bytes to a human-readable string
func formatFileSize(size int64) string {
	if size < 1024 {
		return fmt.Sprintf("%d B", size)
	} else if size < 1024*1024 {
		return fmt.Sprintf("%.2f KB", float64(size)/1024)
	} else if size < 1024*1024*1024 {
		return fmt.Sprintf("%.2f MB", float64(size)/(1024*1024))
	} else {
		return fmt.Sprintf("%.2f GB", float64(size)/(1024*1024*1024))
	}
}

// FileMetadataList renders a list of file metadata with pagination and filters
templ FileMetadataList(ctx context.Context, data FileMetadataListData) {
	@LayoutWithContext("File Metadata", ctx) {
		<div class="container mx-auto px-4 py-8 animate-fadeIn">
			<div class="flex justify-between items-center mb-6">
				<h1 class="text-2xl font-bold text-secondary-800 dark:text-secondary-200">
					if data.Job != nil {
						Files for Job: { data.Job.Name }
					} else {
						File Metadata
					}
				</h1>
				<div class="flex space-x-2">
					<a href="/files/search" class="btn-primary">
						<i class="fas fa-search mr-2"></i> Advanced Search
					</a>
				</div>
			</div>
			
			<!-- Filter Form -->
			<div class="card mb-6">
				<div class="card-header">
					<h2 class="text-lg font-semibold">Filter Files</h2>
				</div>
				<div class="card-body">
					<form method="GET" class="grid grid-cols-1 md:grid-cols-3 gap-4">
						if data.Job == nil {
							<div>
								<label for="job_id" class="block text-sm font-medium text-secondary-700 dark:text-secondary-300 mb-1">Job</label>
								<input type="text" id="job_id" name="job_id" value={ data.Filter.JobID } placeholder="Job ID" 
									class="form-input w-full" />
							</div>
						}
						<div>
							<label for="status" class="block text-sm font-medium text-secondary-700 dark:text-secondary-300 mb-1">Status</label>
							<select id="status" name="status" class="form-input w-full">
								<option value="">All Statuses</option>
								<option value="processed" selected?={ data.Filter.Status == "processed" }>Processed</option>
								<option value="archived" selected?={ data.Filter.Status == "archived" }>Archived</option>
								<option value="deleted" selected?={ data.Filter.Status == "deleted" }>Deleted</option>
								<option value="archived_and_deleted" selected?={ data.Filter.Status == "archived_and_deleted" }>Archived & Deleted</option>
								<option value="error" selected?={ data.Filter.Status == "error" }>Error</option>
							</select>
						</div>
						<div>
							<label for="filename" class="block text-sm font-medium text-secondary-700 dark:text-secondary-300 mb-1">Filename</label>
							<input type="text" id="filename" name="filename" value={ data.Filter.FileName } placeholder="Filename or partial match" 
								class="form-input w-full" />
						</div>
						<div class="md:col-span-3 flex justify-end">
							<button type="submit" class="btn-primary">
								<i class="fas fa-filter mr-2"></i> Apply Filters
							</button>
						</div>
					</form>
				</div>
			</div>
			
			<!-- Results -->
			<div class="card">
				<div class="card-header flex justify-between items-center">
					<h2 class="text-lg font-semibold">Files ({ strconv.FormatInt(data.TotalCount, 10) })</h2>
					<div class="text-sm text-secondary-600 dark:text-secondary-400">
						Page { strconv.Itoa(data.Page) } of { strconv.Itoa(data.TotalPages) }
					</div>
				</div>
				<div class="overflow-x-auto">
					if len(data.Files) > 0 {
						<table class="table w-full">
							<thead>
								<tr>
									<th>ID</th>
									<th>Filename</th>
									<th>Size</th>
									<th>Processed</th>
									<th>Status</th>
									if data.Job == nil {
										<th>Job</th>
									}
									<th>Actions</th>
								</tr>
							</thead>
							<tbody>
								for _, file := range data.Files {
									<tr class="hover:bg-secondary-50 dark:hover:bg-secondary-800 transition-colors duration-150">
										<td>{ strconv.FormatUint(uint64(file.ID), 10) }</td>
										<td class="text-primary-600 dark:text-primary-400">
											<a href={ templ.SafeURL(fmt.Sprintf("/files/%d", file.ID)) } class="hover:underline">
												{ file.FileName }
											</a>
										</td>
										<td>{ formatFileSize(file.FileSize) }</td>
										<td>{ file.ProcessedTime.Format("2006-01-02 15:04:05") }</td>
										<td>
											<span class={ "badge", getStatusBadgeClass(file.Status) }>
												{ file.Status }
											</span>
										</td>
										if data.Job == nil && file.Job.ID > 0 {
											<td>
												<a href={ templ.SafeURL(fmt.Sprintf("/files/job/%d", file.Job.ID)) } class="hover:underline text-primary-600 dark:text-primary-400">
													{ file.Job.Name }
												</a>
											</td>
										}
										<td class="flex space-x-2">
											<a href={ templ.SafeURL(fmt.Sprintf("/files/%d", file.ID)) } class="text-primary-600 dark:text-primary-400 hover:text-primary-800 dark:hover:text-primary-300">
												<i class="fas fa-eye"></i>
											</a>
											<button
												class="text-red-600 dark:text-red-400 hover:text-red-800 dark:hover:text-red-300"
												hx-delete={ fmt.Sprintf("/files/%d", file.ID) }
												hx-confirm="Are you sure you want to delete this file metadata record? This cannot be undone."
												hx-target="body">
												<i class="fas fa-trash"></i>
											</button>
										</td>
									</tr>
								}
							</tbody>
						</table>
						
						<!-- Pagination -->
						if data.TotalPages > 1 {
							<div class="flex justify-center items-center py-4 bg-secondary-50 dark:bg-secondary-800">
								<div class="flex space-x-1">
									if data.Page > 1 {
										<a href={ templ.SafeURL(buildPaginationURL(data, data.Page - 1)) } class="btn-secondary">
											<i class="fas fa-chevron-left"></i>
										</a>
									}
									
									for i := 1; i <= data.TotalPages; i++ {
										if i == data.Page {
											<span class="px-3 py-2 bg-primary-600 text-white rounded">{ strconv.Itoa(i) }</span>
										} else if i == 1 || i == data.TotalPages || (i >= data.Page-2 && i <= data.Page+2) {
											<a href={ templ.SafeURL(buildPaginationURL(data, i)) } class="px-3 py-2 bg-secondary-200 text-secondary-800 hover:bg-secondary-300 rounded dark:bg-secondary-700 dark:text-secondary-200 dark:hover:bg-secondary-600">
												{ strconv.Itoa(i) }
											</a>
										} else if i == data.Page-3 || i == data.Page+3 {
											<span class="px-3 py-2">...</span>
										}
									}
									
									if data.Page < data.TotalPages {
										<a href={ templ.SafeURL(buildPaginationURL(data, data.Page + 1)) } class="btn-secondary">
											<i class="fas fa-chevron-right"></i>
										</a>
									}
								</div>
							</div>
						}
					} else {
						<div class="p-6 text-center text-secondary-600 dark:text-secondary-400">
							<i class="fas fa-file-alt text-5xl mb-3"></i>
							<p>No file metadata found matching your criteria.</p>
						</div>
					}
				</div>
			</div>
		</div>
	}
}

// buildPaginationURL builds a URL for pagination links
func buildPaginationURL(data FileMetadataListData, page int) string {
	baseURL := "/files"
	if data.Job != nil {
		baseURL = fmt.Sprintf("/files/job/%d", data.Job.ID)
	}
	
	url := fmt.Sprintf("%s?page=%d&limit=%d", baseURL, page, data.Limit)
	
	if data.Filter.Status != "" {
		url += "&status=" + data.Filter.Status
	}
	
	if data.Filter.FileName != "" {
		url += "&filename=" + data.Filter.FileName
	}
	
	if data.Filter.JobID != "" && data.Job == nil {
		url += "&job_id=" + data.Filter.JobID
	}
	
	return url
}

// FileMetadataDetails renders detailed information about a file
templ FileMetadataDetails(ctx context.Context, data FileMetadataDetailsData) {
	@LayoutWithContext("File Details", ctx) {
		<div class="container mx-auto px-4 py-8 animate-fadeIn">
			<div class="mb-6">
				<a href="/files" class="text-primary-600 dark:text-primary-400 hover:underline">
					<i class="fas fa-arrow-left mr-2"></i> Back to Files
				</a>
			</div>
			
			<div class="card">
				<div class="card-header">
					<h1 class="text-2xl font-bold text-secondary-800 dark:text-secondary-200">
						File: { data.File.FileName }
					</h1>
				</div>
				<div class="card-body">
					<div class="grid grid-cols-1 md:grid-cols-2 gap-6">
						<div>
							<h2 class="text-lg font-semibold mb-4 text-secondary-800 dark:text-secondary-200">File Information</h2>
							<table class="w-full">
								<tbody>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">ID</td>
										<td class="py-2">{ strconv.FormatUint(uint64(data.File.ID), 10) }</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Filename</td>
										<td class="py-2">{ data.File.FileName }</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Size</td>
										<td class="py-2">{ formatFileSize(data.File.FileSize) }</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Hash</td>
										<td class="py-2 break-all">
											if data.File.FileHash != "" {
												{ data.File.FileHash }
											} else {
												<span class="text-secondary-500 dark:text-secondary-500 italic">Not available</span>
											}
										</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Status</td>
										<td class="py-2">
											<span class={ "badge", getStatusBadgeClass(data.File.Status) }>
												{ data.File.Status }
											</span>
										</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Original Path</td>
										<td class="py-2 break-all">{ data.File.OriginalPath }</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Destination Path</td>
										<td class="py-2 break-all">{ data.File.DestinationPath }</td>
									</tr>
								</tbody>
							</table>
						</div>
						
						<div>
							<h2 class="text-lg font-semibold mb-4 text-secondary-800 dark:text-secondary-200">Processing Information</h2>
							<table class="w-full">
								<tbody>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Job</td>
										<td class="py-2">
											<a href={ templ.SafeURL(fmt.Sprintf("/files/job/%d", data.File.JobID)) } class="text-primary-600 dark:text-primary-400 hover:underline">
												{ data.File.Job.Name }
											</a>
										</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Processed Time</td>
										<td class="py-2">{ data.File.ProcessedTime.Format("2006-01-02 15:04:05") }</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Creation Time</td>
										<td class="py-2">{ data.File.CreationTime.Format("2006-01-02 15:04:05") }</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Modification Time</td>
										<td class="py-2">{ data.File.ModTime.Format("2006-01-02 15:04:05") }</td>
									</tr>
									if data.File.Status == "error" && data.File.ErrorMessage != "" {
										<tr class="border-b border-secondary-200 dark:border-secondary-700">
											<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Error</td>
											<td class="py-2 text-red-600 dark:text-red-400 break-all">{ data.File.ErrorMessage }</td>
										</tr>
									}
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Record Created</td>
										<td class="py-2">{ data.File.CreatedAt.Format("2006-01-02 15:04:05") }</td>
									</tr>
									<tr class="border-b border-secondary-200 dark:border-secondary-700">
										<td class="py-2 font-medium text-secondary-700 dark:text-secondary-300">Record Updated</td>
										<td class="py-2">{ data.File.UpdatedAt.Format("2006-01-02 15:04:05") }</td>
									</tr>
								</tbody>
							</table>
						</div>
					</div>
					
					<div class="mt-8 flex justify-end space-x-4">
						<a href="/files" class="btn-secondary">
							<i class="fas fa-list mr-2"></i> Back to Files
						</a>
						<button 
							class="btn-danger"
							hx-delete={ fmt.Sprintf("/files/%d", data.File.ID) }
							hx-confirm="Are you sure you want to delete this file metadata record? This cannot be undone."
							hx-target="body">
							<i class="fas fa-trash mr-2"></i> Delete Record
						</button>
					</div>
				</div>
			</div>
		</div>
	}
}

// FileMetadataSearch renders an advanced search form for file metadata
templ FileMetadataSearch(ctx context.Context, data FileMetadataSearchData) {
	@LayoutWithContext("Search Files", ctx) {
		<div class="container mx-auto px-4 py-8 animate-fadeIn">
			<div class="mb-6">
				<a href="/files" class="text-primary-600 dark:text-primary-400 hover:underline">
					<i class="fas fa-arrow-left mr-2"></i> Back to Files
				</a>
			</div>
			
			<div class="card mb-6">
				<div class="card-header">
					<h1 class="text-2xl font-bold text-secondary-800 dark:text-secondary-200">
						Advanced File Search
					</h1>
				</div>
				<div class="card-body">
					<form method="GET" class="grid grid-cols-1 md:grid-cols-2 gap-6">
						<div>
							<label for="job_id" class="block text-sm font-medium text-secondary-700 dark:text-secondary-300 mb-1">Job ID</label>
							<input type="text" id="job_id" name="job_id" value={ data.Filter.JobID } placeholder="Job ID" 
								class="form-input w-full" />
						</div>
						<div>
							<label for="status" class="block text-sm font-medium text-secondary-700 dark:text-secondary-300 mb-1">Status</label>
							<select id="status" name="status" class="form-input w-full">
								<option value="">All Statuses</option>
								<option value="processed" selected?={ data.Filter.Status == "processed" }>Processed</option>
								<option value="archived" selected?={ data.Filter.Status == "archived" }>Archived</option>
								<option value="deleted" selected?={ data.Filter.Status == "deleted" }>Deleted</option>
								<option value="archived_and_deleted" selected?={ data.Filter.Status == "archived_and_deleted" }>Archived & Deleted</option>
								<option value="error" selected?={ data.Filter.Status == "error" }>Error</option>
							</select>
						</div>
						<div>
							<label for="filename" class="block text-sm font-medium text-secondary-700 dark:text-secondary-300 mb-1">Filename</label>
							<input type="text" id="filename" name="filename" value={ data.Filter.FileName } placeholder="Filename or partial match" 
								class="form-input w-full" />
						</div>
						<div>
							<label for="hash" class="block text-sm font-medium text-secondary-700 dark:text-secondary-300 mb-1">File Hash</label>
							<input type="text" id="hash" name="hash" value={ data.Filter.Hash } placeholder="MD5 hash" 
								class="form-input w-full" />
						</div>
						<div>
							<label for="start_date" class="block text-sm font-medium text-secondary-700 dark:text-secondary-300 mb-1">Processed After</label>
							<input type="date" id="start_date" name="start_date" value={ data.Filter.StartDate } 
								class="form-input w-full" />
						</div>
						<div>
							<label for="end_date" class="block text-sm font-medium text-secondary-700 dark:text-secondary-300 mb-1">Processed Before</label>
							<input type="date" id="end_date" name="end_date" value={ data.Filter.EndDate } 
								class="form-input w-full" />
						</div>
						<div class="md:col-span-2 flex justify-end">
							<button type="submit" class="btn-primary">
								<i class="fas fa-search mr-2"></i> Search Files
							</button>
						</div>
					</form>
				</div>
			</div>
			
			<!-- Results -->
			if data.TotalCount > 0 || (data.Filter.FileName != "" || data.Filter.JobID != "" || data.Filter.Status != "" || 
				data.Filter.Hash != "" || data.Filter.StartDate != "" || data.Filter.EndDate != "") {
				<div class="card">
					<div class="card-header flex justify-between items-center">
						<h2 class="text-lg font-semibold">Search Results ({ strconv.FormatInt(data.TotalCount, 10) })</h2>
						<div class="text-sm text-secondary-600 dark:text-secondary-400">
							Page { strconv.Itoa(data.Page) } of { strconv.Itoa(data.TotalPages) }
						</div>
					</div>
					<div class="overflow-x-auto">
						if len(data.Files) > 0 {
							<table class="table w-full">
								<thead>
									<tr>
										<th>ID</th>
										<th>Filename</th>
										<th>Size</th>
										<th>Processed</th>
										<th>Status</th>
										<th>Job</th>
										<th>Actions</th>
									</tr>
								</thead>
								<tbody>
									for _, file := range data.Files {
										<tr class="hover:bg-secondary-50 dark:hover:bg-secondary-800 transition-colors duration-150">
											<td>{ strconv.FormatUint(uint64(file.ID), 10) }</td>
											<td class="text-primary-600 dark:text-primary-400">
												<a href={ templ.SafeURL(fmt.Sprintf("/files/%d", file.ID)) } class="hover:underline">
													{ file.FileName }
												</a>
											</td>
											<td>{ formatFileSize(file.FileSize) }</td>
											<td>{ file.ProcessedTime.Format("2006-01-02 15:04:05") }</td>
											<td>
												<span class={ "badge", getStatusBadgeClass(file.Status) }>
													{ file.Status }
												</span>
											</td>
											<td>
												<a href={ templ.SafeURL(fmt.Sprintf("/files/job/%d", file.Job.ID)) } class="hover:underline text-primary-600 dark:text-primary-400">
													{ file.Job.Name }
												</a>
											</td>
											<td class="flex space-x-2">
												<a href={ templ.SafeURL(fmt.Sprintf("/files/%d", file.ID)) } class="text-primary-600 dark:text-primary-400 hover:text-primary-800 dark:hover:text-primary-300">
													<i class="fas fa-eye"></i>
												</a>
												<button
													class="text-red-600 dark:text-red-400 hover:text-red-800 dark:hover:text-red-300"
													hx-delete={ fmt.Sprintf("/files/%d", file.ID) }
													hx-confirm="Are you sure you want to delete this file metadata record? This cannot be undone."
													hx-target="body">
													<i class="fas fa-trash"></i>
												</button>
											</td>
										</tr>
									}
								</tbody>
							</table>
							
							<!-- Pagination -->
							if data.TotalPages > 1 {
								<div class="flex justify-center items-center py-4 bg-secondary-50 dark:bg-secondary-800">
									<div class="flex space-x-1">
										if data.Page > 1 {
											<a href={ templ.SafeURL(buildSearchPaginationURL(data, data.Page - 1)) } class="btn-secondary">
												<i class="fas fa-chevron-left"></i>
											</a>
										}
										
										for i := 1; i <= data.TotalPages; i++ {
											if i == data.Page {
												<span class="px-3 py-2 bg-primary-600 text-white rounded">{ strconv.Itoa(i) }</span>
											} else if i == 1 || i == data.TotalPages || (i >= data.Page-2 && i <= data.Page+2) {
												<a href={ templ.SafeURL(buildSearchPaginationURL(data, i)) } class="px-3 py-2 bg-secondary-200 text-secondary-800 hover:bg-secondary-300 rounded dark:bg-secondary-700 dark:text-secondary-200 dark:hover:bg-secondary-600">
													{ strconv.Itoa(i) }
												</a>
											} else if i == data.Page-3 || i == data.Page+3 {
												<span class="px-3 py-2">...</span>
											}
										}
										
										if data.Page < data.TotalPages {
											<a href={ templ.SafeURL(buildSearchPaginationURL(data, data.Page + 1)) } class="btn-secondary">
												<i class="fas fa-chevron-right"></i>
											</a>
										}
									</div>
								</div>
							}
						} else {
							<div class="p-6 text-center text-secondary-600 dark:text-secondary-400">
								<i class="fas fa-search text-5xl mb-3"></i>
								<p>No files found matching your search criteria.</p>
							</div>
						}
					</div>
				</div>
			}
		</div>
	}
}

// buildSearchPaginationURL builds a URL for search pagination links
func buildSearchPaginationURL(data FileMetadataSearchData, page int) string {
	url := fmt.Sprintf("/files/search?page=%d&limit=%d", page, data.Limit)
	
	if data.Filter.Status != "" {
		url += "&status=" + data.Filter.Status
	}
	
	if data.Filter.FileName != "" {
		url += "&filename=" + data.Filter.FileName
	}
	
	if data.Filter.JobID != "" {
		url += "&job_id=" + data.Filter.JobID
	}
	
	if data.Filter.Hash != "" {
		url += "&hash=" + data.Filter.Hash
	}
	
	if data.Filter.StartDate != "" {
		url += "&start_date=" + data.Filter.StartDate
	}
	
	if data.Filter.EndDate != "" {
		url += "&end_date=" + data.Filter.EndDate
	}
	
	return url
}