from django.contrib import admin
from django.utils.html import format_html
from django.urls import reverse
from django.utils import timezone
from .models import (
    JobPosting, Candidate, TrainingMaterial, ZoomMeeting,
    FormTemplate, FormStage, FormField, FormSubmission, FieldResponse,
    SharedFormTemplate, Source, HiringAgency, IntegrationLog,InterviewSchedule
)

class FormFieldInline(admin.TabularInline):
    model = FormField
    extra = 1
    ordering = ('order',)

class FormStageInline(admin.TabularInline):
    model = FormStage
    extra = 1
    ordering = ('order',)
    inlines = [FormFieldInline]

@admin.register(Source)
class SourceAdmin(admin.ModelAdmin):
    list_display = ['name', 'source_type', 'ip_address', 'is_active', 'sync_status', 'created_at']
    list_filter = ['source_type', 'is_active', 'sync_status', 'created_at']
    search_fields = ['name', 'description']
    readonly_fields = ['created_at', 'last_sync_at']
    fieldsets = (
        ('Basic Information', {
            'fields': ('name', 'source_type', 'description')
        }),
        ('Technical Details', {
            'fields': ('ip_address', 'api_key', 'api_secret', 'trusted_ips')
        }),
        ('Integration Status', {
            'fields': ('is_active', 'integration_version', 'sync_status', 'last_sync_at', 'created_at')
        }),
    )
    save_on_top = True
    actions = ['activate_sources', 'deactivate_sources']

    def activate_sources(self, request, queryset):
        updated = queryset.update(is_active=True)
        self.message_user(request, f'{updated} sources activated.')
    activate_sources.short_description = 'Activate selected sources'

    def deactivate_sources(self, request, queryset):
        updated = queryset.update(is_active=False)
        self.message_user(request, f'{updated} sources deactivated.')
    deactivate_sources.short_description = 'Deactivate selected sources'


@admin.register(IntegrationLog)
class IntegrationLogAdmin(admin.ModelAdmin):
    list_display = ['source', 'action', 'endpoint', 'status_code', 'ip_address', 'created_at']
    list_filter = ['action', 'status_code', 'source', 'created_at']
    search_fields = ['source__name', 'endpoint', 'error_message']
    readonly_fields = ['source', 'action', 'endpoint', 'method', 'request_data',
                     'response_data', 'status_code', 'error_message', 'ip_address',
                     'user_agent', 'processing_time', 'created_at']
    fieldsets = (
        ('Request Information', {
            'fields': ('source', 'action', 'endpoint', 'method', 'ip_address', 'user_agent')
        }),
        ('Data', {
            'fields': ('request_data', 'response_data')
        }),
        ('Results', {
            'fields': ('status_code', 'error_message', 'processing_time', 'created_at')
        }),
    )
    save_on_top = False
    date_hierarchy = 'created_at'


@admin.register(HiringAgency)
class HiringAgencyAdmin(admin.ModelAdmin):
    list_display = ['name', 'contact_person', 'email', 'phone', 'country', 'created_at']
    list_filter = ['country', 'created_at']
    search_fields = ['name', 'contact_person', 'email', 'phone', 'notes']
    readonly_fields = ['created_at', 'updated_at']
    fieldsets = (
        ('Basic Information', {
            'fields': ('name', 'contact_person', 'email', 'phone', 'website')
        }),
        ('Location Details', {
            'fields': ('country', 'address')
        }),
        ('Additional Information', {
            'fields': ('notes', 'created_at', 'updated_at')
        }),
    )
    save_on_top = True


@admin.register(JobPosting)
class JobPostingAdmin(admin.ModelAdmin):
    list_display = ['internal_job_id', 'title', 'department', 'job_type', 'status', 'posted_to_linkedin', 'created_at']
    list_filter = ['job_type', 'status', 'workplace_type', 'source', 'created_at']
    search_fields = ['title', 'department', 'internal_job_id']
    readonly_fields = ['internal_job_id', 'created_at', 'updated_at']
    fieldsets = (
        ('Basic Information', {
            'fields': ('title', 'department', 'job_type', 'workplace_type', 'status')
        }),
        ('Location', {
            'fields': ('location_city', 'location_state', 'location_country')
        }),
        ('Job Details', {
            'fields': ('description', 'qualifications', 'salary_range', 'benefits')
        }),
        ('Application Information', {
            'fields': ('application_url', 'application_deadline', 'application_instructions')
        }),
        ('Internal Tracking', {
            'fields': ('internal_job_id', 'created_by', 'created_at', 'updated_at')
        }),
        ('Integration', {
            'fields': ('source', 'open_positions', 'position_number', 'reporting_to', 'start_date')
        }),
        ('LinkedIn Integration', {
            'fields': ('posted_to_linkedin', 'linkedin_post_id', 'linkedin_post_url', 'linkedin_posted_at')
        }),
    )
    save_on_top = True
    actions = ['make_published', 'make_draft', 'mark_as_closed']

    def make_published(self, request, queryset):
        updated = queryset.update(status='PUBLISHED')
        self.message_user(request, f'{updated} job postings marked as published.')
    make_published.short_description = 'Mark selected jobs as published'

    def make_draft(self, request, queryset):
        updated = queryset.update(status='DRAFT')
        self.message_user(request, f'{updated} job postings marked as draft.')
    make_draft.short_description = 'Mark selected jobs as draft'

    def mark_as_closed(self, request, queryset):
        updated = queryset.update(status='CLOSED')
        self.message_user(request, f'{updated} job postings marked as closed.')
    mark_as_closed.short_description = 'Mark selected jobs as closed'


@admin.register(Candidate)
class CandidateAdmin(admin.ModelAdmin):
    list_display = ['full_name', 'job', 'email', 'phone', 'stage', 'applied', 'created_at']
    list_filter = ['stage', 'applied', 'created_at', 'job__department']
    search_fields = ['first_name', 'last_name', 'email', 'phone']
    readonly_fields = ['slug', 'created_at', 'updated_at']
    fieldsets = (
        ('Personal Information', {
            'fields': ('first_name', 'last_name', 'email', 'phone', 'resume')
        }),
        ('Application Details', {
            'fields': ('job', 'applied', 'stage')
        }),
        ('Interview Process', {
            'fields': ('exam_date', 'exam_status', 'interview_date', 'interview_status', 'offer_date', 'offer_status', 'join_date')
        }),
        ('Scoring', {
            'fields': ('match_score', 'strengths', 'weaknesses', 'criteria_checklist')
        }),
        ('Additional Information', {
            'fields': ('submitted_by_agency', 'created_at', 'updated_at')
        }),
    )
    save_on_top = True
    actions = ['mark_as_applied', 'mark_as_not_applied']

    def mark_as_applied(self, request, queryset):
        updated = queryset.update(applied=True)
        self.message_user(request, f'{updated} candidates marked as applied.')
    mark_as_applied.short_description = 'Mark selected candidates as applied'

    def mark_as_not_applied(self, request, queryset):
        updated = queryset.update(applied=False)
        self.message_user(request, f'{updated} candidates marked as not applied.')
    mark_as_not_applied.short_description = 'Mark selected candidates as not applied'


@admin.register(TrainingMaterial)
class TrainingMaterialAdmin(admin.ModelAdmin):
    list_display = ['title', 'created_by', 'created_at']
    list_filter = ['created_at']
    search_fields = ['title', 'content']
    readonly_fields = ['created_at', 'updated_at']
    fieldsets = (
        ('Basic Information', {
            'fields': ('title', 'content')
        }),
        ('Media', {
            'fields': ('video_link', 'file')
        }),
        ('Metadata', {
            'fields': ('created_by', 'created_at', 'updated_at')
        }),
    )
    save_on_top = True


@admin.register(ZoomMeeting)
class ZoomMeetingAdmin(admin.ModelAdmin):
    list_display = ['topic', 'meeting_id', 'start_time', 'duration', 'created_at']
    list_filter = ['timezone', 'created_at']
    search_fields = ['topic', 'meeting_id']
    readonly_fields = ['created_at', 'updated_at']
    fieldsets = (
        ('Meeting Details', {
            'fields': ('topic', 'meeting_id', 'start_time', 'duration', 'timezone')
        }),
        ('Meeting Settings', {
            'fields': ('participant_video', 'join_before_host', 'mute_upon_entry', 'waiting_room')
        }),
        ('Access', {
            'fields': ('join_url',)
        }),
        ('System Response', {
            'fields': ('zoom_gateway_response', 'created_at', 'updated_at')
        }),
    )
    save_on_top = True


@admin.register(FormTemplate)
class FormTemplateAdmin(admin.ModelAdmin):
    list_display = ['name', 'created_by', 'created_at', 'is_active']
    list_filter = ['is_active', 'created_at']
    search_fields = ['name', 'description']
    readonly_fields = ['created_at', 'updated_at']
    inlines = [FormStageInline]
    fieldsets = (
        ('Basic Information', {
            'fields': ('name', 'description', 'created_by', 'is_active')
        }),
        ('Timeline', {
            'fields': ('created_at', 'updated_at')
        }),
    )
    save_on_top = True


@admin.register(FormSubmission)
class FormSubmissionAdmin(admin.ModelAdmin):
    list_display = ['template', 'applicant_name', 'submitted_at', 'submitted_by']
    list_filter = ['submitted_at', 'template']
    search_fields = ['applicant_name', 'applicant_email']
    readonly_fields = ['submitted_at']
    fieldsets = (
        ('Submission Information', {
            'fields': ('template', 'submitted_by', 'submitted_at')
        }),
        ('Applicant Information', {
            'fields': ('applicant_name', 'applicant_email')
        }),
    )
    save_on_top = True


# Register other models
admin.site.register(FormStage)
admin.site.register(FormField)
admin.site.register(FieldResponse)
admin.site.register(InterviewSchedule)
# admin.site.register(HiringAgency)