import {z} from 'zod'

export type GetApiV1AssistantsAgentIdArgs = {agent_id: string};

export type GetApiV1AssistantsAgentIdOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const contextVarSpec = z.object({name: z.string(), type: z.enum(["string", "int", "float", "bool", "enum"]), source: z.enum(["system", "derived"]).optional(), enum_values: z.array(z.string()).nullable().optional(), reask_cap: z.number().int().nullable().optional(), description: z.string().nullable().optional()});

export const firstSpeakingConfig = z.object({first_speaker: z.enum(["agent", "user"]).optional(), mode: z.enum(["static", "dynamic"]).optional(), text: z.string().max(1000).nullable().optional(), instructions: z.string().max(2000).nullable().optional(), interruptible: z.boolean().optional(), ai_disclosure_text: z.string().max(500).nullable().optional()});

export const warmTransferChannelConfig = z.object({briefing_template: z.string().max(4000).nullable().optional()});

export const channelConfig = z.object({prompt: z.string().nullable().optional(), first_speaking_config: firstSpeakingConfig.nullable().optional(), warm_transfer: warmTransferChannelConfig.nullable().optional()});

export const modelConfig = z.object({temperature: z.number().gte(0).lte(2).nullable().optional(), max_tokens: z.number().int().gte(1).nullable().optional(), top_p: z.number().gte(0).lte(1).nullable().optional(), stop_sequences: z.array(z.string()).nullable().optional(), reasoning_effort: z.enum(["none", "minimal", "low", "medium", "high", "xhigh", "max"]).nullable().optional(), request_timeout_ms: z.number().int().gte(1000).lte(20000).nullable().optional(), thinking_budget: z.number().int().gte(1).nullable().optional()});

export const modelChainEntry = z.object({model: z.string(), config: modelConfig.optional()});

export const currentTimeSettings = z.object({enabled: z.boolean().nullable().optional(), timezone: z.string().nullable().optional()});

export const systemContextVariableSpec = z.object({name: z.string(), type: z.enum(["string", "int", "float", "bool", "enum"]), enum_values: z.array(z.string()).nullable().optional(), description: z.string().nullable().optional()});

export const agentRevisionResponse = z.object({id: z.string(), agent_id: z.string(), name: z.string(), description: z.string().nullable().optional(), persona: z.string().nullable().optional(), system_prompt: z.string().nullable().optional(), context_variables: z.array(contextVarSpec).nullable().optional(), variable_defaults: z.record(z.string(), z.unknown()).nullable().optional(), tool_refs: z.array(z.record(z.string(), z.unknown())).nullable().optional(), knowledge_base_refs: z.array(z.record(z.string(), z.unknown())).nullable().optional(), platform_tools: z.record(z.string(), z.unknown()).optional(), policies_enabled: z.boolean().optional(), policy_refs: z.array(z.record(z.string(), z.unknown())).nullable().optional(), channel_specific_config: z.record(z.string(), channelConfig).nullable().optional(), router_config_id: z.string().nullable().optional(), model_settings: modelChainEntry.nullable().optional(), analyzer_model_settings: modelChainEntry.nullable().optional(), workflow_enabled: z.boolean().optional(), memory_enabled: z.boolean().optional(), current_time: currentTimeSettings.nullable().optional(), kb_clearance_level: z.number().int().nullable().optional(), kb_audience_tags: z.array(z.string()).optional(), continue_after_flow: z.boolean().nullable().optional(), voice_call_settings: z.record(z.string(), z.unknown()).nullable().optional(), created_by: z.string().nullable().optional(), created_at: z.string(), updated_at: z.string(), published_at: z.string().nullable().optional(), system_context_variables: z.array(systemContextVariableSpec).nullable()});

export const releaseGateMode = z.enum(["off", "advisory"]);

export const agentResponse = z.object({id: z.string(), organization_id: z.string(), name: z.string(), description: z.string().nullable().optional(), active_revision_id: z.string().nullable().optional(), active_revision: agentRevisionResponse.nullable().optional(), metadata: z.record(z.string(), z.unknown()).optional(), platform_tools: z.record(z.string(), z.unknown()).optional(), knowledge_gap_analysis_enabled: z.boolean().optional(), release_suite_id: z.string().nullable().optional(), release_gate_mode: releaseGateMode.optional(), release_gate_max_failures: z.number().int().optional(), max_active_calls: z.number().int().nullable().optional(), created_at: z.string(), updated_at: z.string()});

export const assistantDetailResponse = z.object({agent: agentResponse, revisions: z.array(agentRevisionResponse).optional(), workflow_id: z.string().nullable().optional(), active_flow_revision_id: z.string().nullable().optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Get an assistant (config + all revisions)
 * 
 * GET /v1/assistants/{agent_id}
 */
export const getApiV1AssistantsAgentId = async (args: GetApiV1AssistantsAgentIdArgs, options: GetApiV1AssistantsAgentIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/assistants/${encodeURIComponent(String(args.agent_id))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(assistantDetailResponse, await res.json())
};