from django.contrib import admin
from django.utils.html import format_html

from .models import Filament, Submission, VerifiedEmail


@admin.register(VerifiedEmail)
class VerifiedEmailAdmin(admin.ModelAdmin):
    list_display = ("email", "validated_at")
    search_fields = ("email",)
    readonly_fields = ("validated_at",)
    ordering = ("-validated_at",)


@admin.register(Filament)
class FilamentAdmin(admin.ModelAdmin):
    list_display = (
        "display_label",
        "material",
        "color_name",
        "swatch",
        "is_available",
        "sort_order",
        "notes",
    )
    list_editable = ("is_available", "sort_order", "notes")
    list_filter = ("material", "is_available")
    search_fields = ("color_name", "material", "notes")
    readonly_fields = ("id", "created_at", "updated_at")
    ordering = ("sort_order", "color_name")

    @admin.display(description="Swatch")
    def swatch(self, obj: Filament) -> str:
        if not obj.swatch_hex:
            return "—"
        return format_html(
            '<span title="{0}" style="display:inline-block;width:1.25rem;height:1.25rem;border-radius:0.25rem;border:1px solid #cbd5e1;background:{0};"></span>',
            obj.swatch_hex,
        )


@admin.register(Submission)
class SubmissionAdmin(admin.ModelAdmin):
    list_display = (
        "slug",
        "status",
        "submitter_display",
        "source_type",
        "requested_filament",
        "created_at",
        "closed_by",
    )
    list_filter = ("status", "source_type", "requested_filament")
    search_fields = (
        "slug",
        "guest_email",
        "submitted_by__username",
        "submitted_by__email",
    )
    date_hierarchy = "created_at"
    ordering = ("-created_at",)
    autocomplete_fields = ("requested_filament",)
    readonly_fields = (
        "id",
        "slug",
        "confirmation_token",
        "confirmation_sent_at",
        "email_confirmed",
        "created_at",
        "updated_at",
        "closed_at",
    )
    fieldsets = (
        ("Identity", {
            "fields": ("slug", "id", "submitted_by", "guest_email"),
        }),
        ("Source", {
            "fields": ("source_type", "stl_file", "source_url", "requested_filament"),
        }),
        ("User-provided", {
            "fields": ("notes_for_op",),
            "description": "Private notes from the submitter -- never shown publicly.",
        }),
        ("Status & operator", {
            "fields": ("status", "operator_notes", "closed_by", "closed_at"),
        }),
        ("Confirmation (guest path)", {
            "fields": ("email_confirmed", "confirmation_token", "confirmation_sent_at"),
            "classes": ("collapse",),
        }),
        ("Timestamps", {
            "fields": ("created_at", "updated_at"),
            "classes": ("collapse",),
        }),
    )

    @admin.display(description="Submitter", ordering="submitted_by")
    def submitter_display(self, obj: Submission) -> str:
        if obj.submitted_by_id:
            return str(obj.submitted_by)
        return f"guest <{obj.guest_email}>" if obj.guest_email else "guest"