from django.contrib import admin

from .models import (
    Cost,
    IntegrationConnection,
    IntegrationSyncRun,
    Product,
    ProductBinding,
    ProductImage,
    Sale,
    SaleLine,
    SourceRecord,
    SourceSystem,
    StockSnapshot,
)


@admin.register(IntegrationConnection)
class IntegrationConnectionAdmin(admin.ModelAdmin):
    list_display = ["provider", "source", "status", "account_name", "updated_at"]
    list_filter = ["provider", "status"]
    readonly_fields = ["encrypted_credentials", "last_stats", "task_id"]


@admin.register(IntegrationSyncRun)
class IntegrationSyncRunAdmin(admin.ModelAdmin):
    list_display = [
        "connection",
        "status",
        "stage",
        "stage_processed",
        "stage_total",
        "last_progress_at",
        "created_at",
        "finished_at",
    ]
    list_filter = ["status", "stage", "connection__provider"]
    readonly_fields = [field.name for field in IntegrationSyncRun._meta.fields]


class ProductBindingInline(admin.TabularInline):
    model = ProductBinding
    extra = 0
    autocomplete_fields = ["source"]


class ProductImageInline(admin.TabularInline):
    model = ProductImage
    extra = 0
    readonly_fields = ["file", "thumbnail", "source_updated_at"]


@admin.register(Product)
class ProductAdmin(admin.ModelAdmin):
    list_display = ["sku", "name", "kind", "parent", "is_active", "updated_at"]
    list_filter = ["kind", "is_active"]
    search_fields = ["sku", "name", "barcode", "bindings__external_sku"]
    autocomplete_fields = ["parent"]
    inlines = [ProductBindingInline, ProductImageInline]


@admin.register(ProductImage)
class ProductImageAdmin(admin.ModelAdmin):
    list_display = ["product", "source", "filename", "is_primary", "position"]
    list_filter = ["source", "is_primary"]
    search_fields = ["product__sku", "product__name", "filename", "external_id"]
    autocomplete_fields = ["product", "source"]


@admin.register(SourceSystem)
class SourceSystemAdmin(admin.ModelAdmin):
    list_display = ["code", "name", "is_active", "updated_at"]
    list_filter = ["is_active"]
    search_fields = ["code", "name"]


@admin.register(SourceRecord)
class SourceRecordAdmin(admin.ModelAdmin):
    list_display = ["source", "entity_type", "external_id", "received_at"]
    list_filter = ["source", "entity_type"]
    search_fields = ["external_id"]
    readonly_fields = ["payload_hash", "received_at", "created_at"]
    autocomplete_fields = ["source"]


@admin.register(ProductBinding)
class ProductBindingAdmin(admin.ModelAdmin):
    list_display = ["product", "source", "external_id", "external_sku", "is_primary"]
    list_filter = ["source", "is_primary"]
    search_fields = ["product__sku", "external_id", "external_sku"]
    autocomplete_fields = ["product", "source"]


class SaleLineInline(admin.TabularInline):
    model = SaleLine
    extra = 0
    autocomplete_fields = ["product"]


@admin.register(SaleLine)
class SaleLineAdmin(admin.ModelAdmin):
    list_display = ["sale", "product", "external_sku", "quantity", "gross_amount"]
    search_fields = [
        "external_id",
        "external_sku",
        "name",
        "sale__number",
        "product__sku",
    ]
    autocomplete_fields = ["sale", "product"]


@admin.register(Sale)
class SaleAdmin(admin.ModelAdmin):
    list_display = [
        "number",
        "source",
        "event_type",
        "channel",
        "status",
        "counts_as_sale",
        "occurred_at",
    ]
    list_filter = ["source", "event_type", "channel", "counts_as_sale", "currency"]
    search_fields = ["number", "external_id", "lines__external_sku"]
    autocomplete_fields = ["source", "source_record"]
    inlines = [SaleLineInline]


@admin.register(Cost)
class CostAdmin(admin.ModelAdmin):
    list_display = [
        "cost_type",
        "product",
        "source",
        "channel",
        "amount",
        "currency",
        "occurred_at",
    ]
    list_filter = ["cost_type", "source", "channel", "currency"]
    search_fields = ["external_id", "product__sku", "product__name"]
    autocomplete_fields = ["source", "product", "sale_line"]


@admin.register(StockSnapshot)
class StockSnapshotAdmin(admin.ModelAdmin):
    list_display = [
        "product",
        "source",
        "warehouse_name",
        "quantity",
        "reserved",
        "captured_at",
    ]
    list_filter = ["source", "warehouse_name"]
    search_fields = ["product__sku", "product__name", "warehouse_external_id"]
    autocomplete_fields = ["product", "source"]