from django.contrib import admin
from .models import (
    Tag,
    Ingredient,
    PantryItem,
    MetaRecipe,
    Slot,
    SlotOption,
    MetaRecipeBase,
    Recipe,
    RecipeIngredient,
    CookLog,
    ShoppingListItem,
)


@admin.register(Tag)
class TagAdmin(admin.ModelAdmin):
    list_display = ["name"]
    search_fields = ["name"]


@admin.register(Ingredient)
class IngredientAdmin(admin.ModelAdmin):
    list_display = ["name", "default_unit", "shelf_life_days", "tag_list"]
    list_filter = ["tags"]
    search_fields = ["name", "aliases"]
    filter_horizontal = ["tags"]

    def tag_list(self, obj):
        return ", ".join(t.name for t in obj.tags.all())

    tag_list.short_description = "Tags"


@admin.register(PantryItem)
class PantryItemAdmin(admin.ModelAdmin):
    list_display = [
        "ingredient",
        "quantity",
        "unit",
        "location",
        "stored_date",
        "expiry_date",
        "is_staple",
    ]
    list_filter = ["location", "is_staple"]
    search_fields = ["ingredient__name"]
    list_editable = ["quantity"]


# --- Meta-Recipe inlines ---


class SlotOptionInline(admin.TabularInline):
    model = SlotOption
    extra = 1
    autocomplete_fields = ["ingredient"]


class SlotInline(admin.TabularInline):
    model = Slot
    extra = 1
    show_change_link = True  # Link to slot detail to manage options


class MetaRecipeBaseInline(admin.TabularInline):
    model = MetaRecipeBase
    extra = 1
    autocomplete_fields = ["ingredient"]


@admin.register(MetaRecipe)
class MetaRecipeAdmin(admin.ModelAdmin):
    list_display = ["name", "default_servings", "prep_time_mins", "cook_time_mins", "gear_needed"]
    search_fields = ["name"]
    inlines = [SlotInline, MetaRecipeBaseInline]


@admin.register(Slot)
class SlotAdmin(admin.ModelAdmin):
    list_display = ["meta_recipe", "name", "required", "max_choices", "option_count"]
    list_filter = ["meta_recipe", "required"]
    inlines = [SlotOptionInline]

    def option_count(self, obj):
        return obj.options.count()

    option_count.short_description = "Options"


# --- Fixed Recipe inlines ---


class RecipeIngredientInline(admin.TabularInline):
    model = RecipeIngredient
    extra = 1
    autocomplete_fields = ["ingredient"]


@admin.register(Recipe)
class RecipeAdmin(admin.ModelAdmin):
    list_display = ["name", "servings", "prep_time_mins", "cook_time_mins", "source_url"]
    search_fields = ["name"]
    inlines = [RecipeIngredientInline]


# --- Cook Log & Shopping ---


@admin.register(CookLog)
class CookLogAdmin(admin.ModelAdmin):
    list_display = ["date", "meta_recipe", "recipe", "servings"]
    list_filter = ["date"]
    date_hierarchy = "date"


@admin.register(ShoppingListItem)
class ShoppingListItemAdmin(admin.ModelAdmin):
    list_display = ["__str__", "quantity", "unit", "reason", "added_date", "checked"]
    list_filter = ["checked"]
    list_editable = ["checked"]