tecvico-website/apps/projects/admin.py

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

from .models import ProjectBrief, ProjectBriefAttachment, ProjectInternalNote


class ProjectBriefAttachmentInline(admin.TabularInline):
    model = ProjectBriefAttachment
    extra = 0
    readonly_fields = ("original_filename", "file", "uploaded_at")
    can_delete = True


class ProjectInternalNoteInline(admin.TabularInline):
    model = ProjectInternalNote
    extra = 1
    fields = ("author", "note", "created_at")
    readonly_fields = ("created_at",)


@admin.register(ProjectBrief)
class ProjectBriefAdmin(admin.ModelAdmin):
    list_display = (
        "title",
        "client",
        "category",
        "status_badge",
        "locked",
        "show_on_website",
        "budget_range",
        "submitted_at",
    )
    list_filter = (
        "status",
        "category",
        "budget_range",
        "locked",
        "show_on_website",
        "submitted_at",
    )
    search_fields = (
        "title",
        "description",
        "client__username",
        "client__email",
        "client__first_name",
        "client__last_name",
    )
    readonly_fields = ("client", "submitted_at", "updated_at")
    fieldsets = (
        (
            "Brief",
            {
                "fields": (
                    "client",
                    "title",
                    "category",
                    "description",
                    "budget_range",
                    "desired_deadline",
                    "reference_links",
                ),
            },
        ),
        (
            "Workflow",
            {
                "fields": (
                    "status",
                    "quote_text",
                    "website_notes",
                    "submitted_at",
                    "updated_at",
                ),
            },
        ),
        (
            "Client editing locks",
            {
                "description": (
                    "Lock individual fields so the client cannot change them while "
                    "the brief is still editable. 'Lock entire project' blocks all "
                    "client edits regardless of status."
                ),
                "fields": (
                    "locked",
                    "lock_title",
                    "lock_category",
                    "lock_description",
                    "lock_budget_range",
                    "lock_desired_deadline",
                    "lock_reference_links",
                    "lock_attachments",
                ),
            },
        ),
        (
            "Website showcase",
            {
                "description": (
                    "Control whether this project appears on the public website and "
                    "which fields are visible on the website card."
                ),
                "fields": (
                    "show_on_website",
                    "public_title",
                    "public_summary",
                    "public_tags",
                    "public_image",
                    "public_project_status",
                    "public_url",
                ),
            },
        ),
        (
            "Website field visibility",
            {
                "description": (
                    "Each field can be independently shown or hidden on the website card."
                ),
                "fields": (
                    "show_title_on_website",
                    "show_category_on_website",
                    "show_description_on_website",
                    "show_budget_on_website",
                    "show_deadline_on_website",
                    "show_references_on_website",
                    "show_attachments_on_website",
                ),
                "classes": ("collapse",),
            },
        ),
    )
    inlines = [ProjectBriefAttachmentInline, ProjectInternalNoteInline]
    date_hierarchy = "submitted_at"

    def save_formset(self, request, form, formset, change):
        instances = formset.save(commit=False)
        for instance in instances:
            if isinstance(instance, ProjectInternalNote) and not instance.author_id:
                instance.author = request.user
            instance.save()
        formset.save_m2m()
        for obj in formset.deleted_objects:
            obj.delete()

    @admin.display(description="Status", boolean=False)
    def status_badge(self, obj):
        colors = {
            ProjectBrief.STATUS_SUBMITTED: "#3b82f6",
            ProjectBrief.STATUS_UNDER_REVIEW: "#8b5cf6",
            ProjectBrief.STATUS_QUOTED: "#f59e0b",
            ProjectBrief.STATUS_ACCEPTED: "#10b981",
            ProjectBrief.STATUS_DECLINED: "#ef4444",
            ProjectBrief.STATUS_IN_PROGRESS: "#06b6d4",
            ProjectBrief.STATUS_DELIVERED: "#22c55e",
            ProjectBrief.STATUS_CLOSED: "#6b7280",
        }
        color = colors.get(obj.status, "#6b7280")
        return format_html(
            '<span style="padding:2px 8px;border-radius:999px;background:{};color:#fff;font-size:12px;">{}</span>',
            color,
            obj.get_status_display(),
        )


@admin.register(ProjectInternalNote)
class ProjectInternalNoteAdmin(admin.ModelAdmin):
    list_display = ("brief", "author", "created_at")
    search_fields = ("brief__title", "note", "author__username")
    readonly_fields = ("created_at",)