model

type ChatCompletionChunkResponse struct {
	ID      string        `json:"id"`
	Object  string        `json:"object"`
	Created int64         `json:"created"`
	Model   string        `json:"model"`
	Choices []ChunkChoice `json:"choices"`
}

type ChatCompletionRequest struct {
	Model          string          `json:"model"`
	Messages       []ChatMessage   `json:"messages"`
	Temperature    float32         `json:"temperature,omitempty"`
	MaxTokens      int             `json:"max_tokens,omitempty"`
	Stream         bool            `json:"stream,omitempty"`
	ResponseFormat *ResponseFormat `json:"response_format,omitempty"`
}

type ChatCompletionResponse struct {
	ID      string   `json:"id"`
	Object  string   `json:"object"`
	Created int64    `json:"created"`
	Model   string   `json:"model"`
	Choices []Choice `json:"choices"`
	Usage   Usage    `json:"usage"`
}

type ChatMessage struct {
	Role    string `json:"role"`
	Content string `json:"content"`
}

type Choice struct {
	Index        int         `json:"index"`
	Message      ChatMessage `json:"message"`
	FinishReason string      `json:"finish_reason"`
}

type ChunkChoice struct {
	Index        int        `json:"index"`
	Delta        ChunkDelta `json:"delta"`
	FinishReason *string    `json:"finish_reason"`
}

type ChunkDelta struct {
	Content string `json:"content,omitempty"`
}

type Embedding struct {
	Object    string    `json:"object"`
	Embedding []float32 `json:"embedding"`
	Index     int       `json:"index"`
}

type EmbeddingRequest struct {
	Model string   `json:"model"`
	Input []string `json:"-"` // Handled by custom unmarshaler
}

type EmbeddingResponse struct {
	Object string      `json:"object"`
	Data   []Embedding `json:"data"`
	Model  string      `json:"model"`
	Usage  Usage       `json:"usage"`
}

type ResponseFormat struct {
	Type string `json:"type"` // e.g., "json_object"
}

type TargetJSONOutput struct {
	Summary string   `json:"summary" vld:"min10"`
	Topics  []string `json:"topics" vld:"min1"`
}

type Usage struct {
	PromptTokens     int `json:"prompt_tokens"`
	CompletionTokens int `json:"completion_tokens"`
	TotalTokens      int `json:"total_tokens"`
}