package dodo_tools

import (
	"bytes"
	"context"
	"encoding/json"
	"fmt"
	"io"
	"net/http"

	"sketch.dev/llm"
)

type GetProjectConfigTool struct {
	apiBaseAddress string
	projectId      string
}

func NewGetProjectConfigTool(apiBaseAddress string, projectId string) *llm.Tool {
	tool := &GetProjectConfigTool{
		apiBaseAddress: apiBaseAddress,
		projectId:      projectId,
	}
	return &llm.Tool{
		Name:        "dodo_get_project_config",
		Description: "A tool for getting current state of the infrastructure configuration of a dodo project. You might want to use dodo_get_project_env tool to resolve ingress domains.",
		InputSchema: llm.EmptySchema(),
		Run:         tool.Run,
		EndsTurn:    false,
	}
}

type GetProjectConfigInput struct {
}

type GetProjectConfigOutput struct {
	Config string `json:"config"`
}

func (d *GetProjectConfigTool) Run(ctx context.Context, m json.RawMessage) ([]llm.Content, error) {
	resp, err := http.Get(fmt.Sprintf("%s/api/project/%s/config", d.apiBaseAddress, d.projectId))
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	if resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("failed to get project config: %s", string(body))
	}
	output := GetProjectConfigOutput{
		Config: string(body),
	}
	jsonOutput, err := json.Marshal(output)
	if err != nil {
		return nil, err
	}
	return llm.TextContent(string(jsonOutput)), nil
}

// Env

type GetProjectEnvTool struct {
	apiBaseAddress string
	projectId      string
}

func NewGetProjectEnvTool(apiBaseAddress string, projectId string) *llm.Tool {
	tool := &GetProjectEnvTool{
		apiBaseAddress: apiBaseAddress,
		projectId:      projectId,
	}
	return &llm.Tool{
		Name: "dodo_get_project_env",
		Description: `A tool for getting GitHub PAT (Personal Access Token) and available networks of the dodo project. Use if you need to:
1. Interact with GitHub and do not have PAT cached.
2. Want to resolve network domains of dodo service ingresses.
3. Access application wide environment variables.

Returns JSON object conforming following schema which you can cache:

{
  "type": "object",
  "properties": {
    "githubToken": {
      "type": "string",
      "description": "Github PAT (Personal Access Token)"
    },
    "networks": {
      "type": "array",
      "description": "List of available networks",
      "items": {
        "type": "object",
        "required": ["name", "domain", "hasAuth"],
        "properties": {
          "name": {
            "type": "string",
            "description": "The name of the network"
          },
          "domain": {
            "type": "string",
            "description": "The domain of the network"
          },
          "hasAuth": {
            "type": "boolean",
            "description": "Represents if services published on this network can use built-in authorization"
          }
        }
      }
    },
    "envVars": {
      "type": "array",
      "description": "List of application wide environment variables",
      "items": {
        "type": "object",
        "required": ["name", "value"],
        "properties": {
          "name": {
            "type": "string",
            "description": "The name of the environment variable"
          },
          "value": {
            "type": "string",
            "description": "The value of the environment variable"
          }
        }
      }
    }
  }
}
`,
		InputSchema: llm.EmptySchema(),
		Run:         tool.Run,
		EndsTurn:    false,
	}
}

type GetProjectEnvInput struct {
}

type Network struct {
	Name    string `json:"name"`
	Domain  string `json:"domain"`
	HasAuth bool   `json:"hasAuth"`
}

type EnvVar struct {
	Name  string `json:"name"`
	Value string `json:"value"`
}

type GetProjectEnvOutput struct {
	GithubToken string    `json:"githubToken,omitempty"`
	Networks    []Network `json:"networks,omitempty"`
	EnvVars     []EnvVar  `json:"envVars"`
}

func (d *GetProjectEnvTool) Run(ctx context.Context, m json.RawMessage) ([]llm.Content, error) {
	resp, err := http.Get(fmt.Sprintf("%s/api/project/%s/env", d.apiBaseAddress, d.projectId))
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	if resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("failed to get project env: %s", string(body))
	}
	var output GetProjectEnvOutput
	if err := json.Unmarshal(body, &output); err != nil {
		return nil, err
	}
	jsonOutput, err := json.Marshal(output)
	if err != nil {
		return nil, err
	}
	return llm.TextContent(string(jsonOutput)), nil
}

// Validate

type ValidateConfigTool struct {
	apiBaseAddress string
}

const (
	validateConfigSchemaInputSchema = `
{
	"type": "object",
	"properties": {
		"config": {
			"type": "string",
			"description": "The dodo-app configuration to validate"
		}
	},
	"required": ["config"]
}
`
)

func NewValidateConfigTool(apiBaseAddress string) *llm.Tool {
	tool := &ValidateConfigTool{
		apiBaseAddress: apiBaseAddress,
	}
	return &llm.Tool{
		Name:        "dodo_validate_config",
		Description: "A tool for validating the dodo-app configuration",
		InputSchema: llm.MustSchema(validateConfigSchemaInputSchema),
		Run:         tool.Run,
		EndsTurn:    false,
	}
}

type ValidateConfigInput struct {
	Config string `json:"config"`
}

type ValidateConfigOutput struct {
	Success bool `json:"success"`
	Errors  any  `json:"errors,omitempty"`
}

func (d *ValidateConfigTool) Run(ctx context.Context, m json.RawMessage) ([]llm.Content, error) {
	var input ValidateConfigInput
	if err := json.Unmarshal(m, &input); err != nil {
		return nil, err
	}
	resp, err := http.Post(fmt.Sprintf("%s/api/validate-config", d.apiBaseAddress), "application/json", bytes.NewBuffer([]byte(input.Config)))
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	if resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("failed to validate config: %s", string(body))
	}
	var output ValidateConfigOutput
	if err := json.Unmarshal(body, &output); err != nil {
		return nil, err
	}
	jsonOutput, err := json.Marshal(output)
	if err != nil {
		return nil, err
	}
	return llm.TextContent(string(jsonOutput)), nil
}

type DeployProjectTool struct {
	apiBaseAddress string
	projectId      string
}

func NewDeployProjectTool(apiBaseAddress string, projectId string) *llm.Tool {
	tool := &DeployProjectTool{
		apiBaseAddress: apiBaseAddress,
		projectId:      projectId,
	}

	return &llm.Tool{
		Name:        "dodo_deploy_project",
		Description: "A tool for deploying the dodo-app configuration",
		InputSchema: llm.EmptySchema(),
		Run:         tool.Run,
		EndsTurn:    true,
	}
}

type deployProjectReq struct {
	Type string `json:"type"`
}

func (d *DeployProjectTool) Run(ctx context.Context, m json.RawMessage) ([]llm.Content, error) {
	req := deployProjectReq{
		Type: "draft",
	}
	jsonReq, err := json.Marshal(req)
	if err != nil {
		return nil, err
	}
	resp, err := http.Post(fmt.Sprintf("%s/api/project/%s/deploy", d.apiBaseAddress, d.projectId), "application/json", bytes.NewBuffer(jsonReq))
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	if resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("failed to deploy project: %s", string(body))
	}
	return llm.TextContent(string("Project deployed successfully")), nil
}

// Save

type SaveProjectTool struct {
	apiBaseAddress string
	projectId      string
}

const (
	saveProjectSchemaInputSchema = `
{
	"type": "object",
	"properties": {
		"config": {
			"type": "string",
			"description": "Serialized dodo-app configuration to save"
        }
	},
	"required": ["config"]
}
`
)

func NewSaveProjectTool(apiBaseAddress string, projectId string) *llm.Tool {
	tool := &SaveProjectTool{
		apiBaseAddress: apiBaseAddress,
		projectId:      projectId,
	}

	return &llm.Tool{
		Name:        "dodo_save_config",
		Description: "A tool for saving the dodo-app configuration",
		InputSchema: llm.MustSchema(saveProjectSchemaInputSchema),
		Run:         tool.Run,
		EndsTurn:    false,
	}
}

type SaveProjectInput struct {
	Config string `json:"config"`
}

type saveProjectReq struct {
	Type   string         `json:"type"`
	Config map[string]any `json:"config"`
}

func (d *SaveProjectTool) Run(ctx context.Context, m json.RawMessage) ([]llm.Content, error) {
	var input SaveProjectInput
	if err := json.Unmarshal(m, &input); err != nil {
		return nil, err
	}
	req := saveProjectReq{
		Type: "config",
	}
	if err := json.Unmarshal([]byte(input.Config), &req.Config); err != nil {
		return nil, err
	}
	jsonReq, err := json.Marshal(req)
	if err != nil {
		return nil, err
	}
	resp, err := http.Post(fmt.Sprintf("%s/api/project/%s/saved", d.apiBaseAddress, d.projectId), "application/json", bytes.NewBuffer(jsonReq))
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	if resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("failed to save project: %s", string(body))
	}
	return llm.TextContent(string("Project saved successfully")), nil
}

func NewDodoTools(apiBaseAddress string, projectId string) []*llm.Tool {
	return []*llm.Tool{
		NewGetProjectConfigTool(apiBaseAddress, projectId),
		NewGetProjectEnvTool(apiBaseAddress, projectId),
		NewValidateConfigTool(apiBaseAddress),
		NewSaveProjectTool(apiBaseAddress, projectId),
		NewDeployProjectTool(apiBaseAddress, projectId),
	}
}