syntax = "v1"

info (
	title:   "Blog API"
	desc:    "API for blog application"
	author:  "cialloo"
	date:    "2025-10-24"
	version: "v1"
)

type (
	PingReq  {}
	PingResp {
		OK bool `json:"ok"` // Indicates if the server is healthy
	}
)

type (
	UploadPresignedURLReq {
		FileName string `json:"fileName"` // Name of the file to be uploaded
	}
	UploadPresignedURLResp {
		Url      string `json:"url"` // Presigned URL for uploading the file
		FileKey  string `json:"fileKey"` // Unique key to identify the uploaded file
		ExpireAt int64  `json:"expireAt"` // Timestamp when the presigned URL expires
	}
)

type (
	DownloadPresignedURLReq {
		FileKey string `json:"fileKey"` // Unique key of the file to be downloaded
	}
	DownloadPresignedURLResp {
		Url      string `json:"url"` // Presigned URL for downloading the file
		ExpireAt int64  `json:"expireAt"` // Timestamp when the presigned URL expires
	}
)

type (
	CreatePostReq {
		Title         string `json:"title"` // Title of the blog post
		Content       string `json:"content"` // Content/body of the blog post
		CoverImageKey string `json:"coverImageKey"` // Key of the cover image file (optional)
	}
	CreatePostResp {
		PostId string `json:"postId"` // Unique identifier of the created post
	}
)

type (
	EditPostReq {
		PostId        string `json:"postId"` // Unique identifier of the post to edit
		Title         string `json:"title"` // New title of the blog post
		Content       string `json:"content"` // New content/body of the blog post
		CoverImageKey string `json:"coverImageKey"` // New key of the cover image file (optional)
	}
	EditPostResp  {}
)

type (
	DeletePostReq {
		PostId string `json:"postId"` // Unique identifier of the post to delete
	}
	DeletePostResp  {}
)

type (
	GetPostReq {
		PostId string `json:"postId"` // Unique identifier of the post to retrieve
	}
	GetPostResp {
		PostId        string `json:"postId"` // Unique identifier of the post
		Title         string `json:"title"` // Title of the blog post
		Content       string `json:"content"` // Content/body of the blog post
		CoverImageUrl string `json:"coverImageUrl"` // URL of the cover image (if exists)
		CreatedAt     int64  `json:"createdAt"` // Timestamp when the post was created
		UpdatedAt     int64  `json:"updatedAt"` // Timestamp when the post was last updated
	}
)

type (
	ListPostsReq {
		TagIds   []string `json:"tagIds,optional"` // Array of tag IDs to filter posts (optional)
		Page     int      `json:"page"` // Page number for pagination (1-based)
		PageSize int      `json:"pageSize"` // Number of posts per page
	}
	ListPostsResp {
		Posts      []ListPostsRespPosts `json:"posts"` // Array of blog posts
		TotalCount int                  `json:"totalCount"` // Total number of posts available
	}
	ListPostsRespPosts {
		PostId        string `json:"postId"` // Unique identifier of the post
		Title         string `json:"title"` // Title of the blog post
		CoverImageUrl string `json:"coverImageUrl"` // URL of the cover image (if exists)
		CreatedAt     int64  `json:"createdAt"` // Timestamp when the post was created
		UpdatedAt     int64  `json:"updatedAt"` // Timestamp when the post was last updated
	}
)

type (
	ListTagsReq  {}
	ListTagsResp {
		Tags []ListTagsRespTags `json:"tags"` // Array of blog tags
	}
	ListTagsRespTags {
		TagId     string `json:"tagId"` // Unique identifier of the tag
		TagName   string `json:"tagName"` // Name of the tag
		PostCount int    `json:"postCount"` // Number of posts associated with the tag
	}
)

@server (
	prefix: /api/blog
)
service Blog {
	@doc (
		summary:     "Ping the server to check if it's alive"
		description: "Ping the server to check if it's alive"
	)
	@handler pingHandler
	get /ping (PingReq) returns (PingResp)
}

@server (
	prefix: /api/blog/view
)
service Blog {
	@doc (
		summary:     "Get a blog post by ID"
		description: "Get a blog post by ID"
	)
	@handler GetPostHandler
	post /post (GetPostReq) returns (GetPostResp)

	@doc (
		summary:     "Get a list of blog posts"
		description: "Get a list of blog posts with pagination"
	)
	@handler ListPostsHandler
	post /posts (ListPostsReq) returns (ListPostsResp)

	@doc (
		summary:     "Get a list of blog tags"
		description: "Get a list of blog tags"
	)
	@handler ListTagsHandler
	post /tags (ListTagsReq) returns (ListTagsResp)
}

@server (
	middleware: SuperAdminAuthMiddleware
	prefix:     /api/blog/post
)
service Blog {
	@doc (
		summary:     "Create a new blog post"
		description: "Create a new blog post"
	)
	@handler CreatePostHandler
	post /create (CreatePostReq) returns (CreatePostResp)

	@doc (
		summary:     "Edit an existing blog post"
		description: "Edit an existing blog post"
	)
	@handler EditPostHandler
	post /edit (EditPostReq) returns (EditPostResp)

	@doc (
		summary:     "Delete a blog post"
		description: "Delete a blog post"
	)
	@handler DeletePostHandler
	post /delete (DeletePostReq) returns (DeletePostResp)
}

@server (
	middleware: SuperAdminAuthMiddleware
	prefix:     /api/blog/file
)
service Blog {
	@doc (
		summary:     "Get presigned URL for file upload"
		description: "Get presigned URL for file upload"
	)
	@handler UploadPresignedURLHandler
	post /upload (UploadPresignedURLReq) returns (UploadPresignedURLResp)

	@doc (
		summary:     "Get presigned URL for file download"
		description: "Get presigned URL for file download"
	)
	@handler DownloadPresignedURLHandler
	post /download (DownloadPresignedURLReq) returns (DownloadPresignedURLResp)
}