from django.contrib import admin
from unfold.admin import ModelAdmin, TabularInline

from apps.projects.models import (
    Project, ProjectStep, ProjectStepItem,
    ProjectTemplate, ProjectTemplateStep, ProjectTemplateStepItem,
)


class TemplateStepItemInline(TabularInline):
    model = ProjectTemplateStepItem
    extra = 1
    fields = ('order', 'title', 'priority', 'description')


class TemplateStepInline(TabularInline):
    model = ProjectTemplateStep
    extra = 1
    fields = ('order', 'title', 'department', 'offset_days', 'duration_days')
    show_change_link = True
    autocomplete_fields = ['department']


@admin.register(ProjectTemplate)
class ProjectTemplateAdmin(ModelAdmin):
    list_display = ('name', 'default_duration_days', 'is_active', 'updated_at')
    list_filter = ('is_active',)
    search_fields = ('name', 'description')
    inlines = [TemplateStepInline]


@admin.register(ProjectTemplateStep)
class ProjectTemplateStepAdmin(ModelAdmin):
    list_display = ('template', 'order', 'title', 'department', 'offset_days', 'duration_days')
    list_filter = ('template',)
    search_fields = ('title',)
    autocomplete_fields = ['template', 'department']
    inlines = [TemplateStepItemInline]


class ProjectStepItemInline(TabularInline):
    model = ProjectStepItem
    extra = 0
    fields = ('order', 'title', 'priority', 'task')
    readonly_fields = ('task',)
    show_change_link = True


class ProjectStepInline(TabularInline):
    model = ProjectStep
    extra = 0
    fields = ('order', 'title', 'department', 'status', 'planned_start', 'planned_due')
    show_change_link = True
    autocomplete_fields = ['department']


@admin.register(Project)
class ProjectAdmin(ModelAdmin):
    list_display = (
        'title', 'status', 'owner', 'pharmacy', 'start_date', 'due_date', 'updated_at',
    )
    list_filter = ('status',)
    search_fields = ('title', 'description')
    autocomplete_fields = ['owner', 'created_by', 'pharmacy', 'template']
    inlines = [ProjectStepInline]
    readonly_fields = ('uuid', 'created_at', 'updated_at')


@admin.register(ProjectStep)
class ProjectStepAdmin(ModelAdmin):
    list_display = ('project', 'order', 'title', 'department', 'status', 'planned_due')
    list_filter = ('status',)
    search_fields = ('title', 'project__title')
    autocomplete_fields = ['project', 'department']
    inlines = [ProjectStepItemInline]