@startuml
!include <C4/C4_Component>

title Component Diagram: Web Frontend — Administration & Help

Person(admin, "Administrator")
Person(user, "User")
Container(backend, "API Backend", "Spring Boot")

System_Boundary(frontend, "Web Frontend (SvelteKit / SSR)") {
    Component(adminUsers, "/admin/users, /admin/users/[id], /admin/users/new, /admin/invites", "SvelteKit Routes", "User directory, create/update/delete users, and manage invite codes. Requires ADMIN_USER permission.")
    Component(adminGroups, "/admin/groups, /admin/groups/[id], /admin/groups/new", "SvelteKit Routes", "Permission group management: create/edit groups and their permission sets.")
    Component(adminTags, "/admin/tags and /admin/tags/[id]", "SvelteKit Routes", "Tag administration: edit tag hierarchy, merge tags, delete subtrees.")
    Component(adminOcr, "/admin/ocr and /admin/ocr/[personId]", "SvelteKit Routes", "Global and per-person OCR configuration. Manages script types and triggers sender model training.")
    Component(adminSystem, "/admin/system", "SvelteKit Route", "System status panel. Triggers Excel/ODS mass import (POST /api/admin/trigger-import). Displays import state.")
    Component(hilfe, "/hilfe/transkription", "SvelteKit Route", "Static transcription style guide for Kurrent and Sütterlin character recognition. No backend calls.")
}

Rel(admin, adminUsers, "Manages users and invites", "HTTPS / Browser")
Rel(user, hilfe, "Views transcription style guide", "HTTPS / Browser")
Rel(adminUsers, backend, "GET/POST/DELETE /api/users, POST /api/auth/invite", "HTTP / JSON")
Rel(adminGroups, backend, "GET/POST/PUT/DELETE /api/groups", "HTTP / JSON")
Rel(adminTags, backend, "GET/PUT/DELETE /api/tags", "HTTP / JSON")
Rel(adminOcr, backend, "GET/POST /api/ocr (global config and sender training)", "HTTP / JSON")
Rel(adminSystem, backend, "POST /api/admin/trigger-import, GET /api/admin/import-status", "HTTP / JSON")

@enduml