syntax = "proto3";
package schematic.v1;

import "google/protobuf/timestamp.proto";

service SchematicsService {
    // Create a new schematic from a file tree
    rpc CreateSchematic(CreateSchematicRequest) returns (CreateSchematicResponse);

    // Get a schematic version
    rpc GetSchematic(GetSchematicRequest) returns (GetSchematicResponse);

    // List all versions of a schematic
    rpc ListVersions(ListVersionsRequest) returns (ListVersionsResponse);

    // Update a draft schematic's file tree
    rpc UpdateSchematic(UpdateSchematicRequest) returns (UpdateSchematicResponse);

    // Validate a schematic against all validators
    rpc ValidateSchematic(ValidateSchematicRequest) returns (ValidateSchematicResponse);

    // Record a stakeholder approval
    rpc ApproveSchematic(ApproveSchematicRequest) returns (ApproveSchematicResponse);

    // Get approval status
    rpc GetApprovalStatus(GetApprovalStatusRequest) returns (GetApprovalStatusResponse);

    // Publish an approved schematic as an immutable snapshot
    rpc PublishSchematic(PublishSchematicRequest) returns (PublishSchematicResponse);

    // Create a new version from a published schematic
    rpc CreateNextVersion(CreateNextVersionRequest) returns (CreateNextVersionResponse);

    // Fork a schematic with template operations
    rpc ForkSchematic(ForkSchematicRequest) returns (ForkSchematicResponse);

    // Create a deployment binding
    rpc CreateDeploymentBinding(CreateDeploymentBindingRequest) returns (CreateDeploymentBindingResponse);

    // Get deployment binding status
    rpc GetDeploymentBinding(GetDeploymentBindingRequest) returns (GetDeploymentBindingResponse);
}

// --- Create ---

message CreateSchematicRequest {
    string name = 1;
    string version = 2;
    // YAML content of schematic.yaml manifest
    bytes manifest_yaml = 3;
    // Files as path:content pairs
    repeated SchematicFile files = 4;
}

message SchematicFile {
    string path = 1;
    bytes content = 2;
}

message CreateSchematicResponse {
    string name = 1;
    string version = 2;
    string tree_hash = 3;
    string status = 4;
}

// --- Get ---

message GetSchematicRequest {
    string name = 1;
    string version = 2;
}

message GetSchematicResponse {
    string name = 1;
    string version = 2;
    string tree_hash = 3;
    string status = 4;
    string parent_hash = 5;
    repeated StakeholderInfo stakeholders = 6;
    google.protobuf.Timestamp created_at = 7;
}

message StakeholderInfo {
    string role = 1;
    string identity = 2;
    bool required = 3;
}

// --- List Versions ---

message ListVersionsRequest {
    string name = 1;
}

message ListVersionsResponse {
    repeated VersionInfo versions = 1;
}

message VersionInfo {
    string version = 1;
    string tree_hash = 2;
    string status = 3;
    string parent_hash = 4;
    google.protobuf.Timestamp created_at = 5;
}

// --- Update ---

message UpdateSchematicRequest {
    string name = 1;
    string version = 2;
    repeated SchematicFile files = 3;
}

message UpdateSchematicResponse {
    string tree_hash = 1;
    string status = 2;
}

// --- Validate ---

message ValidateSchematicRequest {
    string name = 1;
    string version = 2;
}

message ValidateSchematicResponse {
    bool valid = 1;
    int32 error_count = 2;
    int32 warning_count = 3;
    repeated ValidationResultProto results = 4;
}

message ValidationResultProto {
    string validator = 1;
    bool passed = 2;
    string message = 3;
    string severity = 4;
}

// --- Approve ---

message ApproveSchematicRequest {
    string name = 1;
    string version = 2;
    string role = 3;
    string identity = 4;
    string tree_hash = 5;
    string comment = 6;
}

message ApproveSchematicResponse {
    bool accepted = 1;
    string approval_status = 2;
    string message = 3;
}

// --- Approval Status ---

message GetApprovalStatusRequest {
    string name = 1;
    string version = 2;
}

message GetApprovalStatusResponse {
    string status = 1;
    repeated string approved_roles = 2;
    repeated string remaining_roles = 3;
    repeated ApprovalInfo approvals = 4;
}

message ApprovalInfo {
    string role = 1;
    string identity = 2;
    google.protobuf.Timestamp approved_at = 3;
    string comment = 4;
}

// --- Publish ---

message PublishSchematicRequest {
    string name = 1;
    string version = 2;
}

message PublishSchematicResponse {
    string tree_hash = 1;
    string status = 2;
}

// --- Create Next Version ---

message CreateNextVersionRequest {
    string name = 1;
    string from_version = 2;
    // "major", "minor", or "patch"
    string bump = 3;
}

message CreateNextVersionResponse {
    string version = 1;
    string tree_hash = 2;
    string parent_hash = 3;
    string status = 4;
}

// --- Fork ---

message ForkSchematicRequest {
    string source_name = 1;
    string source_version = 2;
    string new_name = 3;
    string new_version = 4;
    repeated TemplateOperation operations = 5;
}

message TemplateOperation {
    // "replace", "add", "remove", "remove_section"
    string op_type = 1;
    string path = 2;
    bytes content = 3;
}

message ForkSchematicResponse {
    string name = 1;
    string version = 2;
    string tree_hash = 3;
    string status = 4;
}

// --- Deployment Binding ---

message CreateDeploymentBindingRequest {
    string schematic_name = 1;
    string schematic_version = 2;
    string pipeline_name = 3;
    string target_env = 4;
}

message CreateDeploymentBindingResponse {
    string binding_id = 1;
    string status = 2;
}

message GetDeploymentBindingRequest {
    string binding_id = 1;
}

message GetDeploymentBindingResponse {
    string binding_id = 1;
    string schematic_name = 2;
    string schematic_version = 3;
    string tree_hash = 4;
    string pipeline_name = 5;
    string target_env = 6;
    string status = 7;
    string run_id = 8;
    google.protobuf.Timestamp created_at = 9;
    google.protobuf.Timestamp deployed_at = 10;
}