export type TemplateType = 'email' | 'report'
export type BlockType = 'heading' | 'text' | 'kpi' | 'button' | 'image' | 'divider' | 'table' | 'spacer'

export type Block = {
  id: string
  type: BlockType
  props: Record<string, unknown>
  style?: Record<string, unknown>
}

export type TemplateDocument = {
  theme?: Record<string, unknown>
  email?: {
    subject?: string
    preheader?: string
  }
  blocks: Block[]
}

export type EmailCompatibilityWarning = {
  code: string
  severity: 'info' | 'warning' | 'error'
  message: string
  block_id?: string | null
}

export type EmailRenderResult = {
  subject: string
  preheader: string
  html: string
  text: string
  warnings: EmailCompatibilityWarning[]
  metadata: Record<string, unknown>
}

export type TemplateRecord = {
  id: string
  template_key: string
  name: string
  type: TemplateType
  status: string
  draft_document: TemplateDocument
  sample_data: Record<string, unknown>
  published_version?: number | null
  folder_id?: string | null
  updated_at: string
}

export type TemplateSummary = Pick<
  TemplateRecord,
  'id' | 'template_key' | 'name' | 'type' | 'status' | 'published_version' | 'folder_id' | 'updated_at'
>

export type ApiKeySummary = {
  id: string
  name: string
  key_prefix: string
  created_at: string
  last_used_at?: string | null
}


export type ThemeSummary = {
  id: string
  name: string
  applies_to: 'all' | TemplateType
  theme: Record<string, unknown>
  created_at: string
  updated_at: string
}


export type FolderSummary = {
  id: string
  name: string
  parent_id?: string | null
  template_count: number
  created_at: string
  updated_at: string
}