Add provider schema

This allows reading values such as 'host' etc from
the main provider configuration block.

internal/provider/provider.go

@@ -5,27 +5,44 @@ package provider
 import (
 	"context"
 
+	"github.com/HewlettPackard/hpegl-pcbe-terraform-resources/internal/client"
 	"github.com/HewlettPackard/hpegl-pcbe-terraform-resources/internal/constants"
+	"github.com/HewlettPackard/hpegl-pcbe-terraform-resources/internal/defaults"
 	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-framework/path"
 	"github.com/hashicorp/terraform-plugin-framework/provider"
+	"github.com/hashicorp/terraform-plugin-framework/provider/schema"
 	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/types"
 )
 
-var _ provider.Provider = &pcbeProvider{}
+var _ provider.Provider = &PCBeProvider{}
 
 func New(version string) func() provider.Provider {
 	return func() provider.Provider {
-		return &pcbeProvider{
+		return &PCBeProvider{
 			version: version,
 		}
 	}
 }
 
-type pcbeProvider struct {
+type PCBeCfg struct {
+	Host         types.String  `tfsdk:"host"`
+	Token        types.String  `tfsdk:"token"`
+	HTTPDump     types.Bool    `tfsdk:"http_dump"`
+	MaxPolls     types.Int32   `tfsdk:"max_polls"`
+	PollInterval types.Float32 `tfsdk:"poll_interval"`
+}
+
+type PCBeProviderModel struct {
+	PCBeCfg PCBeCfg `tfsdk:"pc"`
+}
+
+type PCBeProvider struct {
 	version string
 }
 
-func (p *pcbeProvider) Metadata(
+func (p *PCBeProvider) Metadata(
 	_ context.Context,
 	_ provider.MetadataRequest,
 	resp *provider.MetadataResponse,
@@ -34,29 +51,133 @@ func (p *pcbeProvider) Metadata(
 	resp.Version = p.version
 }
 
-func (p *pcbeProvider) Schema(
+func (p *PCBeProvider) Schema(
 	_ context.Context,
 	_ provider.SchemaRequest,
 	resp *provider.SchemaResponse,
 ) {
+	resp.Schema = schema.Schema{
+		Blocks: map[string]schema.Block{
+			"pc": schema.SingleNestedBlock{
+				Attributes: map[string]schema.Attribute{
+					"host": schema.StringAttribute{
+						Required: true,
+					},
+					"token": schema.StringAttribute{
+						Required: true,
+					},
+					"http_dump": schema.BoolAttribute{
+						Optional: true,
+					},
+					"max_polls": schema.Int32Attribute{
+						Optional: true,
+					},
+					"poll_interval": schema.Float32Attribute{
+						Optional: true,
+					},
+				},
+			},
+		},
+	}
 }
 
-func (p *pcbeProvider) Configure(
+func (p *PCBeProvider) Configure(
 	ctx context.Context,
 	req provider.ConfigureRequest,
 	resp *provider.ConfigureResponse,
 ) {
+	var config PCBeProviderModel
+	var httpDump bool
+	var host string
+	var token string
+	var maxPolls int32
+	var pollInterval float32
+
+	diags := req.Config.Get(ctx, &config)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	if config.PCBeCfg.Host.IsUnknown() {
+		resp.Diagnostics.AddAttributeError(
+			path.Root("host"),
+			"unknown 'host' value in provider configuration block",
+			"the provider cannot create an API client "+
+				"as there is an unknown configuration value for "+
+				"the API host.",
+		)
+	}
+
+	if config.PCBeCfg.Token.IsUnknown() {
+		resp.Diagnostics.AddAttributeError(
+			path.Root("token"),
+			"unknown 'token' value in provider configuration block",
+			"the provider cannot create an API client "+
+				"as there is an unknown configuration value for "+
+				"the API token",
+		)
+	}
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	if !config.PCBeCfg.Host.IsNull() {
+		host = config.PCBeCfg.Host.ValueString()
+	}
+
+	if !config.PCBeCfg.Token.IsNull() {
+		token = config.PCBeCfg.Token.ValueString()
+	}
+
+	if !config.PCBeCfg.HTTPDump.IsNull() {
+		httpDump = config.PCBeCfg.HTTPDump.ValueBool()
+	}
+
+	if !config.PCBeCfg.MaxPolls.IsNull() {
+		maxPolls = config.PCBeCfg.MaxPolls.ValueInt32()
+	}
+
+	if !config.PCBeCfg.PollInterval.IsNull() {
+		pollInterval = config.PCBeCfg.PollInterval.ValueFloat32()
+	}
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	cfg := client.Config{
+		Token:        token,
+		Host:         host,
+		HTTPDump:     httpDump,
+		MaxPolls:     maxPolls,
+		PollInterval: pollInterval,
+		HTTPTimeout:  defaults.HTTPTimeout,
+	}
+	client, err := client.NewPCBeClient(context.Background(), cfg)
+	if err != nil {
+		resp.Diagnostics.AddError(
+			"unable to create API client",
+			err.Error(),
+		)
+
+		return
+	}
+
+	resp.DataSourceData = client
+	resp.ResourceData = client
 }
 
 // DataSources defines the data sources implemented in the provider.
-func (p *pcbeProvider) DataSources(
+func (p *PCBeProvider) DataSources(
 	_ context.Context,
 ) []func() datasource.DataSource {
 	return []func() datasource.DataSource{}
 }
 
 // Resources defines the resources implemented in the provider.
-func (p *pcbeProvider) Resources(
+func (p *PCBeProvider) Resources(
 	_ context.Context,
 ) []func() resource.Resource {
 	return []func() resource.Resource{}