import { ServiceNowIcon } from '@/components/icons'
import type { BlockConfig } from '@/blocks/types'
import { IntegrationType } from '@/blocks/types'
import type { ServiceNowResponse } from '@/tools/servicenow/types'
import { getTrigger } from '@/triggers'

export const ServiceNowBlock: BlockConfig<ServiceNowResponse> = {
  type: 'servicenow',
  name: 'ServiceNow',
  description: 'Create, read, update, and delete ServiceNow records',
  longDescription:
    'Integrate ServiceNow into your workflow. Create, read, update, and delete records in any ServiceNow table including incidents, tasks, change requests, users, and more.',
  docsLink: 'https://docs.sim.ai/tools/servicenow',
  category: 'tools',
  integrationType: IntegrationType.CustomerSupport,
  tags: ['customer-support', 'ticketing', 'incident-management'],
  bgColor: '#032D42',
  icon: ServiceNowIcon,
  subBlocks: [
    // Operation selector
    {
      id: 'operation',
      title: 'Operation',
      type: 'dropdown',
      options: [
        { label: 'Create Record', id: 'servicenow_create_record' },
        { label: 'Read Records', id: 'servicenow_read_record' },
        { label: 'Update Record', id: 'servicenow_update_record' },
        { label: 'Delete Record', id: 'servicenow_delete_record' },
      ],
      value: () => 'servicenow_read_record',
    },
    // Instance URL
    {
      id: 'instanceUrl',
      title: 'Instance URL',
      type: 'short-input',
      placeholder: 'https://instance.service-now.com',
      required: true,
      description: 'Your ServiceNow instance URL (e.g., https://yourcompany.service-now.com)',
    },
    // Username
    {
      id: 'username',
      title: 'Username',
      type: 'short-input',
      placeholder: 'Enter your ServiceNow username',
      required: true,
      description: 'ServiceNow user with web service access',
    },
    // Password
    {
      id: 'password',
      title: 'Password',
      type: 'short-input',
      placeholder: 'Enter your ServiceNow password',
      password: true,
      required: true,
      description: 'Password for the ServiceNow user',
    },
    // Table Name
    {
      id: 'tableName',
      title: 'Table Name',
      type: 'short-input',
      placeholder: 'incident, task, sys_user, etc.',
      required: true,
      description: 'ServiceNow table name',
    },
    // Create-specific: Fields
    {
      id: 'fields',
      title: 'Fields (JSON)',
      type: 'code',
      language: 'json',
      placeholder: '{\n  "short_description": "Issue description",\n  "priority": "1"\n}',
      condition: { field: 'operation', value: 'servicenow_create_record' },
      required: true,
      wandConfig: {
        enabled: true,
        maintainHistory: true,
        prompt: `You are an expert ServiceNow developer. Generate ServiceNow record field objects as JSON based on the user's request.

### CONTEXT
ServiceNow records use specific field names depending on the table. Common tables and their key fields include:
- incident: short_description, description, priority (1-5), urgency (1-3), impact (1-3), caller_id, assignment_group, assigned_to, category, subcategory, state
- task: short_description, description, priority, assignment_group, assigned_to, state
- sys_user: user_name, first_name, last_name, email, active, department, title
- change_request: short_description, description, type, risk, impact, priority, assignment_group

### RULES
- Output ONLY valid JSON object starting with { and ending with }
- Use correct ServiceNow field names for the target table
- Values should be strings unless the field specifically requires another type
- For reference fields (like caller_id, assigned_to), use sys_id values or display values
- Do not include sys_id in create operations (it's auto-generated)

### EXAMPLE
User: "Create a high priority incident for network outage"
Output: {"short_description": "Network outage", "description": "Network connectivity issue affecting users", "priority": "1", "urgency": "1", "impact": "1", "category": "Network"}`,
        generationType: 'json-object',
      },
    },
    // Read-specific: Query options
    {
      id: 'sysId',
      title: 'Record sys_id',
      type: 'short-input',
      placeholder: 'Specific record sys_id (optional)',
      condition: { field: 'operation', value: 'servicenow_read_record' },
    },
    {
      id: 'number',
      title: 'Record Number',
      type: 'short-input',
      placeholder: 'e.g., INC0010001 (optional)',
      condition: { field: 'operation', value: 'servicenow_read_record' },
    },
    {
      id: 'query',
      title: 'Query String',
      type: 'short-input',
      placeholder: 'active=true^priority=1',
      condition: { field: 'operation', value: 'servicenow_read_record' },
      description: 'ServiceNow encoded query string',
      mode: 'advanced',
    },
    {
      id: 'limit',
      title: 'Limit',
      type: 'short-input',
      placeholder: '10',
      condition: { field: 'operation', value: 'servicenow_read_record' },
      mode: 'advanced',
    },
    {
      id: 'offset',
      title: 'Offset',
      type: 'short-input',
      placeholder: '0',
      condition: { field: 'operation', value: 'servicenow_read_record' },
      description: 'Number of records to skip for pagination',
      mode: 'advanced',
    },
    {
      id: 'displayValue',
      title: 'Display Value',
      type: 'dropdown',
      options: [
        { label: 'Default (not set)', id: '' },
        { label: 'False (sys_id only)', id: 'false' },
        { label: 'True (display value only)', id: 'true' },
        { label: 'All (both)', id: 'all' },
      ],
      value: () => '',
      condition: { field: 'operation', value: 'servicenow_read_record' },
      description: 'Return display values for reference fields instead of sys_ids',
      mode: 'advanced',
    },
    {
      id: 'fields',
      title: 'Fields to Return',
      type: 'short-input',
      placeholder: 'number,short_description,priority',
      condition: { field: 'operation', value: 'servicenow_read_record' },
      description: 'Comma-separated list of fields',
      mode: 'advanced',
    },
    // Update-specific: sysId and fields
    {
      id: 'sysId',
      title: 'Record sys_id',
      type: 'short-input',
      placeholder: 'Record sys_id to update',
      condition: { field: 'operation', value: 'servicenow_update_record' },
      required: true,
    },
    {
      id: 'fields',
      title: 'Fields to Update (JSON)',
      type: 'code',
      language: 'json',
      placeholder: '{\n  "state": "2",\n  "assigned_to": "user.sys_id"\n}',
      condition: { field: 'operation', value: 'servicenow_update_record' },
      required: true,
      wandConfig: {
        enabled: true,
        maintainHistory: true,
        prompt: `You are an expert ServiceNow developer. Generate ServiceNow record update field objects as JSON based on the user's request.

### CONTEXT
ServiceNow records use specific field names depending on the table. Common update scenarios include:
- incident: state (1=New, 2=In Progress, 3=On Hold, 6=Resolved, 7=Closed), assigned_to, work_notes, close_notes, close_code
- task: state, assigned_to, work_notes, percent_complete
- change_request: state, risk, approval, work_notes

### RULES
- Output ONLY valid JSON object starting with { and ending with }
- Include only the fields that need to be updated
- Use correct ServiceNow field names for the target table
- For state transitions, use the correct numeric state values
- work_notes and comments fields append to existing values

### EXAMPLE
User: "Assign the incident to John and set to in progress"
Output: {"state": "2", "assigned_to": "john.doe", "work_notes": "Assigned and starting investigation"}`,
        generationType: 'json-object',
      },
    },
    // Delete-specific: sysId
    {
      id: 'sysId',
      title: 'Record sys_id',
      type: 'short-input',
      placeholder: 'Record sys_id to delete',
      condition: { field: 'operation', value: 'servicenow_delete_record' },
      required: true,
    },
    ...getTrigger('servicenow_incident_created').subBlocks,
    ...getTrigger('servicenow_incident_updated').subBlocks,
    ...getTrigger('servicenow_change_request_created').subBlocks,
    ...getTrigger('servicenow_change_request_updated').subBlocks,
    ...getTrigger('servicenow_webhook').subBlocks,
  ],
  tools: {
    access: [
      'servicenow_create_record',
      'servicenow_read_record',
      'servicenow_update_record',
      'servicenow_delete_record',
    ],
    config: {
      tool: (params) => params.operation,
      params: (params) => {
        const { operation, fields, ...rest } = params
        const isCreateOrUpdate =
          operation === 'servicenow_create_record' || operation === 'servicenow_update_record'

        if (rest.limit != null && rest.limit !== '') rest.limit = Number(rest.limit)
        if (rest.offset != null && rest.offset !== '') rest.offset = Number(rest.offset)

        if (fields && isCreateOrUpdate) {
          const parsedFields = typeof fields === 'string' ? JSON.parse(fields) : fields
          return { ...rest, fields: parsedFields }
        }

        return rest
      },
    },
  },
  inputs: {
    operation: { type: 'string', description: 'Operation to perform' },
    instanceUrl: { type: 'string', description: 'ServiceNow instance URL' },
    username: { type: 'string', description: 'ServiceNow username' },
    password: { type: 'string', description: 'ServiceNow password' },
    tableName: { type: 'string', description: 'Table name' },
    sysId: { type: 'string', description: 'Record sys_id' },
    number: { type: 'string', description: 'Record number' },
    query: { type: 'string', description: 'Query string' },
    limit: { type: 'number', description: 'Result limit' },
    offset: { type: 'number', description: 'Pagination offset' },
    fields: { type: 'json', description: 'Fields object or JSON string' },
    displayValue: { type: 'string', description: 'Display value mode for reference fields' },
  },
  outputs: {
    record: { type: 'json', description: 'Single ServiceNow record' },
    records: { type: 'json', description: 'Array of ServiceNow records' },
    success: { type: 'boolean', description: 'Operation success status' },
    metadata: { type: 'json', description: 'Operation metadata' },
  },
  triggers: {
    enabled: true,
    available: [
      'servicenow_incident_created',
      'servicenow_incident_updated',
      'servicenow_change_request_created',
      'servicenow_change_request_updated',
      'servicenow_webhook',
    ],
  },
}
