from django.contrib import admin

from .models import (
    Task,
    TaskActivity,
    TaskAttachment,
    TaskAutomation,
    TaskAutomationRun,
    TaskBoard,
    TaskBoardGroup,
    TaskBoardGroupMembership,
    TaskBoardPlacement,
    TaskChecklistItem,
    TaskColumn,
    TaskColumnRow,
    TaskCover,
    TaskExecutionCycle,
    TaskExternalLink,
    TaskLabel,
    TaskLinkedObject,
    TaskUserSettings,
)


class TaskColumnInline(admin.TabularInline):
    model = TaskColumn
    extra = 0
    fields = ["parent", "name", "position", "color", "is_done", "is_archived"]


class TaskBoardGroupMembershipInline(admin.TabularInline):
    model = TaskBoardGroupMembership
    extra = 0
    fields = ["board", "rank_key", "added_at"]
    readonly_fields = ["added_at"]
    autocomplete_fields = ["board"]


@admin.register(TaskBoard)
class TaskBoardAdmin(admin.ModelAdmin):
    list_display = [
        "name",
        "created_by",
        "access_scope",
        "is_archived",
        "created_at",
    ]
    list_filter = ["access_scope", "is_archived", "created_at"]
    search_fields = ["name", "description"]
    filter_horizontal = ["members", "departments"]
    inlines = [TaskColumnInline]


@admin.register(TaskBoardGroup)
class TaskBoardGroupAdmin(admin.ModelAdmin):
    list_display = ["name", "user", "is_shared", "position", "created_at"]
    list_filter = ["is_shared"]
    search_fields = ["name", "user__email"]
    autocomplete_fields = ["user", "hidden_by"]
    inlines = [TaskBoardGroupMembershipInline]


@admin.register(TaskBoardPlacement)
class TaskBoardPlacementAdmin(admin.ModelAdmin):
    list_display = [
        "board",
        "user",
        "is_pinned",
        "notifications_enabled",
        "updated_at",
    ]
    list_filter = ["is_pinned", "notifications_enabled"]
    search_fields = ["board__name", "user__email"]
    autocomplete_fields = ["board", "user"]
    readonly_fields = ["view_state"]


@admin.register(TaskColumn)
class TaskColumnAdmin(admin.ModelAdmin):
    list_display = [
        "name",
        "board",
        "parent",
        "position",
        "is_done",
        "is_archived",
    ]
    list_filter = ["is_done", "is_archived", "board"]
    search_fields = ["name", "board__name"]


@admin.register(TaskColumnRow)
class TaskColumnRowAdmin(admin.ModelAdmin):
    list_display = ["name", "column", "position", "color"]
    list_filter = ["column__board", "column"]
    search_fields = ["name", "column__name", "column__board__name"]


@admin.register(TaskLabel)
class TaskLabelAdmin(admin.ModelAdmin):
    list_display = ["name", "color"]
    search_fields = ["name"]


@admin.register(TaskAutomation)
class TaskAutomationAdmin(admin.ModelAdmin):
    list_display = [
        "name",
        "kind",
        "trigger",
        "applies_to_all_boards",
        "is_active",
        "last_run_at",
    ]
    list_filter = ["kind", "trigger", "applies_to_all_boards", "is_active"]
    search_fields = ["name", "description"]
    filter_horizontal = ["boards"]
    autocomplete_fields = ["created_by"]


@admin.register(TaskAutomationRun)
class TaskAutomationRunAdmin(admin.ModelAdmin):
    list_display = [
        "automation",
        "task",
        "source",
        "status",
        "actor",
        "started_at",
        "finished_at",
    ]
    list_filter = ["source", "status", "started_at"]
    search_fields = ["automation__name", "task__title", "error"]
    autocomplete_fields = ["automation", "task", "actor", "trigger_activity"]
    readonly_fields = [
        "idempotency_key",
        "context",
        "actions_log",
        "started_at",
        "finished_at",
    ]


@admin.register(Task)
class TaskAdmin(admin.ModelAdmin):
    list_display = [
        "title",
        "board",
        "column",
        "row",
        "assignee",
        "priority",
        "due_date",
        "completed_at",
    ]
    list_filter = ["board", "column", "row", "priority", "due_date"]
    search_fields = ["title", "description", "assignee__email"]
    filter_horizontal = ["labels", "participants"]


@admin.register(TaskAttachment)
class TaskAttachmentAdmin(admin.ModelAdmin):
    list_display = [
        "file_name",
        "task",
        "uploaded_by",
        "file_size",
        "created_at",
    ]
    list_filter = ["created_at"]
    search_fields = ["file_name", "task__title", "uploaded_by__email"]
    autocomplete_fields = ["task", "uploaded_by"]


@admin.register(TaskCover)
class TaskCoverAdmin(admin.ModelAdmin):
    list_display = ["task", "kind", "created_by", "updated_at"]
    list_filter = ["kind", "updated_at"]
    search_fields = ["task__title", "created_by__email"]
    autocomplete_fields = [
        "task",
        "attachment",
        "comment",
        "external_link",
        "linked_object",
        "created_by",
    ]


@admin.register(TaskChecklistItem)
class TaskChecklistItemAdmin(admin.ModelAdmin):
    list_display = [
        "title",
        "task",
        "position",
        "is_completed",
        "completed_by",
        "updated_at",
    ]
    list_filter = ["is_completed", "created_at", "updated_at"]
    search_fields = ["title", "task__title", "created_by__email"]
    autocomplete_fields = ["task", "created_by", "completed_by"]


@admin.register(TaskLinkedObject)
class TaskLinkedObjectAdmin(admin.ModelAdmin):
    list_display = [
        "task",
        "kind",
        "content_type",
        "object_id",
        "created_by",
        "created_at",
    ]
    list_filter = ["kind", "content_type", "created_at"]
    search_fields = ["task__title", "created_by__email", "object_id"]


@admin.register(TaskExternalLink)
class TaskExternalLinkAdmin(admin.ModelAdmin):
    list_display = ["title", "url", "task", "created_by", "created_at"]
    list_filter = ["created_at"]
    search_fields = ["title", "url", "task__title", "created_by__email"]
    autocomplete_fields = ["task", "created_by"]


@admin.register(TaskActivity)
class TaskActivityAdmin(admin.ModelAdmin):
    list_display = ["task", "action", "actor", "object_kind", "object_id", "created_at"]
    list_filter = ["action", "object_kind", "created_at"]
    search_fields = ["task__title", "actor__email", "object_id"]


@admin.register(TaskExecutionCycle)
class TaskExecutionCycleAdmin(admin.ModelAdmin):
    list_display = [
        "task_title",
        "employee",
        "due_date_snapshot",
        "completed_at_snapshot",
        "status",
        "protection_until",
    ]
    list_filter = ["status", "is_self_assigned", "completed_at_snapshot"]
    search_fields = ["task_title", "employee__email", "cycle_key"]
    readonly_fields = [
        "task_id_snapshot",
        "cycle_key",
        "completed_at_snapshot",
        "created_at",
        "updated_at",
    ]


@admin.register(TaskUserSettings)
class TaskUserSettingsAdmin(admin.ModelAdmin):
    list_display = ["user", "default_board", "default_group", "updated_at"]
    search_fields = [
        "user__email",
        "user__first_name",
        "user__last_name",
        "default_board__name",
        "default_group__name",
    ]
    autocomplete_fields = ["user", "default_board", "default_group"]